Adds a branch for unlimited project hierarchy.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/work@2148 e93f8b46-1217-0410-a6f0-8f06a7374b81

nested_projects/app/models/attachment.rb

@@ -0,0 +1,151 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require "digest/md5"
+
+class Attachment < ActiveRecord::Base
+  belongs_to :container, :polymorphic => true
+  belongs_to :author, :class_name => "User", :foreign_key => "author_id"
+  
+  validates_presence_of :container, :filename, :author
+  validates_length_of :filename, :maximum => 255
+  validates_length_of :disk_filename, :maximum => 255
+
+  acts_as_event :title => :filename,
+                :url => Proc.new {|o| {:controller => 'attachments', :action => 'download', :id => o.id, :filename => o.filename}}
+
+  acts_as_activity_provider :type => 'files',
+                            :permission => :view_files,
+                            :author_key => :author_id,
+                            :find_options => {:select => "#{Attachment.table_name}.*", 
+                                              :joins => "LEFT JOIN #{Version.table_name} ON #{Attachment.table_name}.container_type='Version' AND #{Version.table_name}.id = #{Attachment.table_name}.container_id " +
+                                                        "LEFT JOIN #{Project.table_name} ON #{Version.table_name}.project_id = #{Project.table_name}.id"}
+  
+  acts_as_activity_provider :type => 'documents',
+                            :permission => :view_documents,
+                            :author_key => :author_id,
+                            :find_options => {:select => "#{Attachment.table_name}.*", 
+                                              :joins => "LEFT JOIN #{Document.table_name} ON #{Attachment.table_name}.container_type='Document' AND #{Document.table_name}.id = #{Attachment.table_name}.container_id " +
+                                                        "LEFT JOIN #{Project.table_name} ON #{Document.table_name}.project_id = #{Project.table_name}.id"}
+
+  cattr_accessor :storage_path
+  @@storage_path = "#{RAILS_ROOT}/files"
+  
+  def validate
+    errors.add_to_base :too_long if self.filesize > Setting.attachment_max_size.to_i.kilobytes
+  end
+
+  def file=(incoming_file)
+    unless incoming_file.nil?
+      @temp_file = incoming_file
+      if @temp_file.size > 0
+        self.filename = sanitize_filename(@temp_file.original_filename)
+        self.disk_filename = Attachment.disk_filename(filename)
+        self.content_type = @temp_file.content_type.to_s.chomp
+        self.filesize = @temp_file.size
+      end
+    end
+  end
+	
+  def file
+    nil
+  end
+
+  # Copy temp file to its final location
+  def before_save
+    if @temp_file && (@temp_file.size > 0)
+      logger.debug("saving '#{self.diskfile}'")
+      File.open(diskfile, "wb") do |f| 
+        f.write(@temp_file.read)
+      end
+      self.digest = self.class.digest(diskfile)
+    end
+    # Don't save the content type if it's longer than the authorized length
+    if self.content_type && self.content_type.length > 255
+      self.content_type = nil
+    end
+  end
+
+  # Deletes file on the disk
+  def after_destroy
+    File.delete(diskfile) if !filename.blank? && File.exist?(diskfile)
+  end
+
+  # Returns file's location on disk
+  def diskfile
+    "#{@@storage_path}/#{self.disk_filename}"
+  end
+  
+  def increment_download
+    increment!(:downloads)
+  end
+
+  def project
+    container.project
+  end
+  
+  def visible?(user=User.current)
+    container.attachments_visible?(user)
+  end
+  
+  def deletable?(user=User.current)
+    container.attachments_deletable?(user)
+  end
+  
+  def image?
+    self.filename =~ /\.(jpe?g|gif|png)$/i
+  end
+  
+  def is_text?
+    Redmine::MimeType.is_type?('text', filename)
+  end
+  
+  def is_diff?
+    self.filename =~ /\.(patch|diff)$/i
+  end
+  
+private
+  def sanitize_filename(value)
+    # get only the filename, not the whole path
+    just_filename = value.gsub(/^.*(\\|\/)/, '')
+    # NOTE: File.basename doesn't work right with Windows paths on Unix
+    # INCORRECT: just_filename = File.basename(value.gsub('\\\\', '/')) 
+
+    # Finally, replace all non alphanumeric, hyphens or periods with underscore
+    @filename = just_filename.gsub(/[^\w\.\-]/,'_') 
+  end
+  
+  # Returns an ASCII or hashed filename
+  def self.disk_filename(filename)
+    df = DateTime.now.strftime("%y%m%d%H%M%S") + "_"
+    if filename =~ %r{^[a-zA-Z0-9_\.\-]*$}
+      df << filename
+    else
+      df << Digest::MD5.hexdigest(filename)
+      # keep the extension if any
+      df << $1 if filename =~ %r{(\.[a-zA-Z0-9]+)$}
+    end
+    df
+  end
+  
+  # Returns the MD5 digest of the file at given path
+  def self.digest(filename)
+    File.open(filename, 'rb') do |f|
+      Digest::MD5.hexdigest(f.read)
+    end
+  end
+end

nested_projects/app/models/auth_source.rb

@@ -0,0 +1,49 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class AuthSource < ActiveRecord::Base
+  has_many :users
+  
+  validates_presence_of :name
+  validates_uniqueness_of :name
+  validates_length_of :name, :maximum => 60
+
+  def authenticate(login, password)
+  end
+  
+  def test_connection
+  end
+  
+  def auth_method_name
+    "Abstract"
+  end
+
+  # Try to authenticate a user not yet registered against available sources
+  def self.authenticate(login, password)
+    AuthSource.find(:all, :conditions => ["onthefly_register=?", true]).each do |source|
+      begin
+        logger.debug "Authenticating '#{login}' against '#{source.name}'" if logger && logger.debug?
+        attrs = source.authenticate(login, password)
+      rescue => e
+        logger.error "Error during authentication: #{e.message}"
+        attrs = nil
+      end
+      return attrs if attrs
+    end
+    return nil
+  end
+end

nested_projects/app/models/auth_source_ldap.rb

@@ -0,0 +1,98 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'net/ldap'
+require 'iconv'
+
+class AuthSourceLdap < AuthSource 
+  validates_presence_of :host, :port, :attr_login
+  validates_length_of :name, :host, :account_password, :maximum => 60, :allow_nil => true
+  validates_length_of :account, :base_dn, :maximum => 255, :allow_nil => true
+  validates_length_of :attr_login, :attr_firstname, :attr_lastname, :attr_mail, :maximum => 30, :allow_nil => true
+  validates_numericality_of :port, :only_integer => true
+  
+  before_validation :strip_ldap_attributes
+  
+  def after_initialize
+    self.port = 389 if self.port == 0
+  end
+  
+  def authenticate(login, password)
+    return nil if login.blank? || password.blank?
+    attrs = []
+    # get user's DN
+    ldap_con = initialize_ldap_con(self.account, self.account_password)
+    login_filter = Net::LDAP::Filter.eq( self.attr_login, login ) 
+    object_filter = Net::LDAP::Filter.eq( "objectClass", "*" ) 
+    dn = String.new
+    ldap_con.search( :base => self.base_dn, 
+                     :filter => object_filter & login_filter, 
+                     # only ask for the DN if on-the-fly registration is disabled
+                     :attributes=> (onthefly_register? ? ['dn', self.attr_firstname, self.attr_lastname, self.attr_mail] : ['dn'])) do |entry|
+      dn = entry.dn
+      attrs = [:firstname => AuthSourceLdap.get_attr(entry, self.attr_firstname),
+               :lastname => AuthSourceLdap.get_attr(entry, self.attr_lastname),
+               :mail => AuthSourceLdap.get_attr(entry, self.attr_mail),
+               :auth_source_id => self.id ] if onthefly_register?
+    end
+    return nil if dn.empty?
+    logger.debug "DN found for #{login}: #{dn}" if logger && logger.debug?
+    # authenticate user
+    ldap_con = initialize_ldap_con(dn, password)
+    return nil unless ldap_con.bind
+    # return user's attributes
+    logger.debug "Authentication successful for '#{login}'" if logger && logger.debug?
+    attrs    
+  rescue  Net::LDAP::LdapError => text
+    raise "LdapError: " + text
+  end
+
+  # test the connection to the LDAP
+  def test_connection
+    ldap_con = initialize_ldap_con(self.account, self.account_password)
+    ldap_con.open { }
+  rescue  Net::LDAP::LdapError => text
+    raise "LdapError: " + text
+  end
+ 
+  def auth_method_name
+    "LDAP"
+  end
+  
+  private
+  
+  def strip_ldap_attributes
+    [:attr_login, :attr_firstname, :attr_lastname, :attr_mail].each do |attr|
+      write_attribute(attr, read_attribute(attr).strip) unless read_attribute(attr).nil?
+    end
+  end
+  
+  def initialize_ldap_con(ldap_user, ldap_password)
+    options = { :host => self.host,
+                :port => self.port,
+                :encryption => (self.tls ? :simple_tls : nil)
+              }
+    options.merge!(:auth => { :method => :simple, :username => ldap_user, :password => ldap_password }) unless ldap_user.blank? && ldap_password.blank?
+    Net::LDAP.new options
+  end
+  
+  def self.get_attr(entry, attr_name)
+    if !attr_name.blank?
+      entry[attr_name].is_a?(Array) ? entry[attr_name].first : entry[attr_name]
+    end
+  end
+end

nested_projects/app/models/board.rb

@@ -0,0 +1,29 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Board < ActiveRecord::Base
+  belongs_to :project
+  has_many :topics, :class_name => 'Message', :conditions => "#{Message.table_name}.parent_id IS NULL", :order => "#{Message.table_name}.created_on DESC"
+  has_many :messages, :dependent => :delete_all, :order => "#{Message.table_name}.created_on DESC"
+  belongs_to :last_message, :class_name => 'Message', :foreign_key => :last_message_id
+  acts_as_list :scope => :project_id
+  acts_as_watchable
+  
+  validates_presence_of :name, :description
+  validates_length_of :name, :maximum => 30
+  validates_length_of :description, :maximum => 255
+end

nested_projects/app/models/change.rb

@@ -0,0 +1,26 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Change < ActiveRecord::Base
+  belongs_to :changeset
+  
+  validates_presence_of :changeset_id, :action, :path
+  
+  def relative_path
+    changeset.repository.relative_path(path)
+  end
+end

nested_projects/app/models/changeset.rb

@@ -0,0 +1,155 @@
+# Redmine - project management software
+# Copyright (C) 2006-2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'iconv'
+
+class Changeset < ActiveRecord::Base
+  belongs_to :repository
+  belongs_to :user
+  has_many :changes, :dependent => :delete_all
+  has_and_belongs_to_many :issues
+
+  acts_as_event :title => Proc.new {|o| "#{l(:label_revision)} #{o.revision}" + (o.comments.blank? ? '' : (': ' + o.comments))},
+                :description => :comments,
+                :datetime => :committed_on,
+                :url => Proc.new {|o| {:controller => 'repositories', :action => 'revision', :id => o.repository.project_id, :rev => o.revision}}
+                
+  acts_as_searchable :columns => 'comments',
+                     :include => {:repository => :project},
+                     :project_key => "#{Repository.table_name}.project_id",
+                     :date_column => 'committed_on'
+                     
+  acts_as_activity_provider :timestamp => "#{table_name}.committed_on",
+                            :author_key => :user_id,
+                            :find_options => {:include => {:repository => :project}}
+  
+  validates_presence_of :repository_id, :revision, :committed_on, :commit_date
+  validates_uniqueness_of :revision, :scope => :repository_id
+  validates_uniqueness_of :scmid, :scope => :repository_id, :allow_nil => true
+  
+  def revision=(r)
+    write_attribute :revision, (r.nil? ? nil : r.to_s)
+  end
+  
+  def comments=(comment)
+    write_attribute(:comments, Changeset.normalize_comments(comment))
+  end
+
+  def committed_on=(date)
+    self.commit_date = date
+    super
+  end
+  
+  def project
+    repository.project
+  end
+  
+  def author
+    user || committer.to_s.split('<').first
+  end
+  
+  def before_create
+    self.user = repository.find_committer_user(committer)
+  end
+  
+  def after_create
+    scan_comment_for_issue_ids
+  end
+  require 'pp'
+  
+  def scan_comment_for_issue_ids
+    return if comments.blank?
+    # keywords used to reference issues
+    ref_keywords = Setting.commit_ref_keywords.downcase.split(",").collect(&:strip)
+    # keywords used to fix issues
+    fix_keywords = Setting.commit_fix_keywords.downcase.split(",").collect(&:strip)
+    # status and optional done ratio applied
+    fix_status = IssueStatus.find_by_id(Setting.commit_fix_status_id)
+    done_ratio = Setting.commit_fix_done_ratio.blank? ? nil : Setting.commit_fix_done_ratio.to_i
+    
+    kw_regexp = (ref_keywords + fix_keywords).collect{|kw| Regexp.escape(kw)}.join("|")
+    return if kw_regexp.blank?
+    
+    referenced_issues = []
+    
+    if ref_keywords.delete('*')
+      # find any issue ID in the comments
+      target_issue_ids = []
+      comments.scan(%r{([\s\(,-]|^)#(\d+)(?=[[:punct:]]|\s|<|$)}).each { |m| target_issue_ids << m[1] }
+      referenced_issues += repository.project.issues.find_all_by_id(target_issue_ids)
+    end
+    
+    comments.scan(Regexp.new("(#{kw_regexp})[\s:]+(([\s,;&]*#?\\d+)+)", Regexp::IGNORECASE)).each do |match|
+      action = match[0]
+      target_issue_ids = match[1].scan(/\d+/)
+      target_issues = repository.project.issues.find_all_by_id(target_issue_ids)
+      if fix_status && fix_keywords.include?(action.downcase)
+        # update status of issues
+        logger.debug "Issues fixed by changeset #{self.revision}: #{issue_ids.join(', ')}." if logger && logger.debug?
+        target_issues.each do |issue|
+          # the issue may have been updated by the closure of another one (eg. duplicate)
+          issue.reload
+          # don't change the status is the issue is closed
+          next if issue.status.is_closed?
+          csettext = "r#{self.revision}"
+          if self.scmid && (! (csettext =~ /^r[0-9]+$/))
+            csettext = "commit:\"#{self.scmid}\""
+          end
+          journal = issue.init_journal(user || User.anonymous, l(:text_status_changed_by_changeset, csettext))
+          issue.status = fix_status
+          issue.done_ratio = done_ratio if done_ratio
+          issue.save
+          Mailer.deliver_issue_edit(journal) if Setting.notified_events.include?('issue_updated')
+        end
+      end
+      referenced_issues += target_issues
+    end
+    
+    self.issues = referenced_issues.uniq
+  end
+  
+  # Returns the previous changeset
+  def previous
+    @previous ||= Changeset.find(:first, :conditions => ['id < ? AND repository_id = ?', self.id, self.repository_id], :order => 'id DESC')
+  end
+
+  # Returns the next changeset
+  def next
+    @next ||= Changeset.find(:first, :conditions => ['id > ? AND repository_id = ?', self.id, self.repository_id], :order => 'id ASC')
+  end
+  
+  # Strips and reencodes a commit log before insertion into the database
+  def self.normalize_comments(str)
+    to_utf8(str.to_s.strip)
+  end
+  
+  private
+
+
+  def self.to_utf8(str)
+    return str if /\A[\r\n\t\x20-\x7e]*\Z/n.match(str) # for us-ascii
+    encoding = Setting.commit_logs_encoding.to_s.strip
+    unless encoding.blank? || encoding == 'UTF-8'
+      begin
+        return Iconv.conv('UTF-8', encoding, str)
+      rescue Iconv::Failure
+        # do nothing here
+      end
+    end
+    str
+  end
+end

nested_projects/app/models/comment.rb

@@ -0,0 +1,23 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Comment < ActiveRecord::Base
+  belongs_to :commented, :polymorphic => true, :counter_cache => true
+  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
+
+  validates_presence_of :commented, :author, :comments
+end

nested_projects/app/models/custom_field.rb

@@ -0,0 +1,75 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class CustomField < ActiveRecord::Base
+  has_many :custom_values, :dependent => :delete_all
+  acts_as_list :scope => 'type = \'#{self.class}\''
+  serialize :possible_values
+  
+  FIELD_FORMATS = { "string" => { :name => :label_string, :order => 1 },
+                    "text" => { :name => :label_text, :order => 2 },
+                    "int" => { :name => :label_integer, :order => 3 },
+                    "float" => { :name => :label_float, :order => 4 },
+                    "list" => { :name => :label_list, :order => 5 },
+			        "date" => { :name => :label_date, :order => 6 },
+			        "bool" => { :name => :label_boolean, :order => 7 }
+  }.freeze
+
+  validates_presence_of :name, :field_format
+  validates_uniqueness_of :name, :scope => :type
+  validates_length_of :name, :maximum => 30
+  validates_format_of :name, :with => /^[\w\s\.\'\-]*$/i
+  validates_inclusion_of :field_format, :in => FIELD_FORMATS.keys
+
+  def initialize(attributes = nil)
+    super
+    self.possible_values ||= []
+  end
+  
+  def before_validation
+    # remove empty values
+    self.possible_values = self.possible_values.collect{|v| v unless v.empty?}.compact
+    # make sure these fields are not searchable
+    self.searchable = false if %w(int float date bool).include?(field_format)
+    true
+  end
+  
+  def validate
+    if self.field_format == "list"
+      errors.add(:possible_values, :activerecord_error_blank) if self.possible_values.nil? || self.possible_values.empty?
+      errors.add(:possible_values, :activerecord_error_invalid) unless self.possible_values.is_a? Array
+    end
+    
+    # validate default value
+    v = CustomValue.new(:custom_field => self.clone, :value => default_value, :customized => nil)
+    v.custom_field.is_required = false
+    errors.add(:default_value, :activerecord_error_invalid) unless v.valid?
+  end
+
+  def <=>(field)
+    position <=> field.position
+  end
+  
+  # to move in project_custom_field
+  def self.for_all
+    find(:all, :conditions => ["is_for_all=?", true], :order => 'position')
+  end
+  
+  def type_name
+    nil
+  end
+end

nested_projects/app/models/custom_value.rb

@@ -0,0 +1,55 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class CustomValue < ActiveRecord::Base
+  belongs_to :custom_field
+  belongs_to :customized, :polymorphic => true
+
+  def after_initialize
+    if custom_field && new_record? && (customized_type.blank? || (customized && customized.new_record?))
+      self.value ||= custom_field.default_value
+    end
+  end
+  
+  # Returns true if the boolean custom value is true
+  def true?
+    self.value == '1'
+  end
+  
+protected
+  def validate
+    if value.blank?
+      errors.add(:value, :activerecord_error_blank) if custom_field.is_required? and value.blank?    
+    else
+      errors.add(:value, :activerecord_error_invalid) unless custom_field.regexp.blank? or value =~ Regexp.new(custom_field.regexp)
+      errors.add(:value, :activerecord_error_too_short) if custom_field.min_length > 0 and value.length < custom_field.min_length
+      errors.add(:value, :activerecord_error_too_long) if custom_field.max_length > 0 and value.length > custom_field.max_length
+    
+      # Format specific validations
+      case custom_field.field_format
+      when 'int'
+        errors.add(:value, :activerecord_error_not_a_number) unless value =~ /^[+-]?\d+$/	
+      when 'float'
+        begin; Kernel.Float(value); rescue; errors.add(:value, :activerecord_error_invalid) end
+      when 'date'
+        errors.add(:value, :activerecord_error_not_a_date) unless value =~ /^\d{4}-\d{2}-\d{2}$/
+      when 'list'
+        errors.add(:value, :activerecord_error_inclusion) unless custom_field.possible_values.include?(value)
+      end
+    end
+  end
+end

nested_projects/app/models/document.rb

@@ -0,0 +1,37 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Document < ActiveRecord::Base
+  belongs_to :project
+  belongs_to :category, :class_name => "Enumeration", :foreign_key => "category_id"
+  acts_as_attachable :delete_permission => :manage_documents
+
+  acts_as_searchable :columns => ['title', "#{table_name}.description"], :include => :project
+  acts_as_event :title => Proc.new {|o| "#{l(:label_document)}: #{o.title}"},
+                :author => Proc.new {|o| (a = o.attachments.find(:first, :order => "#{Attachment.table_name}.created_on ASC")) ? a.author : nil },
+                :url => Proc.new {|o| {:controller => 'documents', :action => 'show', :id => o.id}}
+  acts_as_activity_provider :find_options => {:include => :project}
+  
+  validates_presence_of :project, :title, :category
+  validates_length_of :title, :maximum => 60
+  
+  def after_initialize
+    if new_record?
+      self.category ||= Enumeration.default('DCAT')
+    end
+  end
+end

nested_projects/app/models/enabled_module.rb

@@ -0,0 +1,23 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class EnabledModule < ActiveRecord::Base
+  belongs_to :project
+  
+  validates_presence_of :name
+  validates_uniqueness_of :name, :scope => :project_id
+end

nested_projects/app/models/enumeration.rb

@@ -0,0 +1,81 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Enumeration < ActiveRecord::Base
+  acts_as_list :scope => 'opt = \'#{opt}\''
+
+  before_destroy :check_integrity
+  
+  validates_presence_of :opt, :name
+  validates_uniqueness_of :name, :scope => [:opt]
+  validates_length_of :name, :maximum => 30
+
+  # Single table inheritance would be an option
+  OPTIONS = {
+    "IPRI" => {:label => :enumeration_issue_priorities, :model => Issue, :foreign_key => :priority_id},
+    "DCAT" => {:label => :enumeration_doc_categories, :model => Document, :foreign_key => :category_id},
+    "ACTI" => {:label => :enumeration_activities, :model => TimeEntry, :foreign_key => :activity_id}
+  }.freeze
+  
+  def self.get_values(option)
+    find(:all, :conditions => {:opt => option}, :order => 'position')
+  end
+  
+  def self.default(option)  
+    find(:first, :conditions => {:opt => option, :is_default => true}, :order => 'position')
+  end
+
+  def option_name
+    OPTIONS[self.opt][:label]
+  end
+
+  def before_save
+    if is_default? && is_default_changed?
+      Enumeration.update_all("is_default = #{connection.quoted_false}", {:opt => opt})
+    end
+  end
+  
+  def objects_count
+    OPTIONS[self.opt][:model].count(:conditions => "#{OPTIONS[self.opt][:foreign_key]} = #{id}")
+  end
+  
+  def in_use?
+    self.objects_count != 0
+  end
+  
+  alias :destroy_without_reassign :destroy
+  
+  # Destroy the enumeration
+  # If a enumeration is specified, objects are reassigned
+  def destroy(reassign_to = nil)
+    if reassign_to && reassign_to.is_a?(Enumeration)
+      OPTIONS[self.opt][:model].update_all("#{OPTIONS[self.opt][:foreign_key]} = #{reassign_to.id}", "#{OPTIONS[self.opt][:foreign_key]} = #{id}")
+    end
+    destroy_without_reassign
+  end
+  
+  def <=>(enumeration)
+    position <=> enumeration.position
+  end
+  
+  def to_s; name end
+  
+private
+  def check_integrity
+    raise "Can't delete enumeration" if self.in_use?
+  end
+end

nested_projects/app/models/issue.rb

@@ -0,0 +1,280 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Issue < ActiveRecord::Base
+  belongs_to :project
+  belongs_to :tracker
+  belongs_to :status, :class_name => 'IssueStatus', :foreign_key => 'status_id'
+  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
+  belongs_to :assigned_to, :class_name => 'User', :foreign_key => 'assigned_to_id'
+  belongs_to :fixed_version, :class_name => 'Version', :foreign_key => 'fixed_version_id'
+  belongs_to :priority, :class_name => 'Enumeration', :foreign_key => 'priority_id'
+  belongs_to :category, :class_name => 'IssueCategory', :foreign_key => 'category_id'
+
+  has_many :journals, :as => :journalized, :dependent => :destroy
+  has_many :time_entries, :dependent => :delete_all
+  has_and_belongs_to_many :changesets, :order => "#{Changeset.table_name}.committed_on ASC, #{Changeset.table_name}.id ASC"
+  
+  has_many :relations_from, :class_name => 'IssueRelation', :foreign_key => 'issue_from_id', :dependent => :delete_all
+  has_many :relations_to, :class_name => 'IssueRelation', :foreign_key => 'issue_to_id', :dependent => :delete_all
+  
+  acts_as_attachable :after_remove => :attachment_removed
+  acts_as_customizable
+  acts_as_watchable
+  acts_as_searchable :columns => ['subject', "#{table_name}.description", "#{Journal.table_name}.notes"],
+                     :include => [:project, :journals],
+                     # sort by id so that limited eager loading doesn't break with postgresql
+                     :order_column => "#{table_name}.id"
+  acts_as_event :title => Proc.new {|o| "#{o.tracker.name} ##{o.id}: #{o.subject}"},
+                :url => Proc.new {|o| {:controller => 'issues', :action => 'show', :id => o.id}}                
+  
+  acts_as_activity_provider :find_options => {:include => [:project, :author, :tracker]},
+                            :author_key => :author_id
+  
+  validates_presence_of :subject, :description, :priority, :project, :tracker, :author, :status
+  validates_length_of :subject, :maximum => 255
+  validates_inclusion_of :done_ratio, :in => 0..100
+  validates_numericality_of :estimated_hours, :allow_nil => true
+
+  def after_initialize
+    if new_record?
+      # set default values for new records only
+      self.status ||= IssueStatus.default
+      self.priority ||= Enumeration.default('IPRI')
+    end
+  end
+  
+  # Overrides Redmine::Acts::Customizable::InstanceMethods#available_custom_fields
+  def available_custom_fields
+    (project && tracker) ? project.all_issue_custom_fields.select {|c| tracker.custom_fields.include? c } : []
+  end
+  
+  def copy_from(arg)
+    issue = arg.is_a?(Issue) ? arg : Issue.find(arg)
+    self.attributes = issue.attributes.dup
+    self.custom_values = issue.custom_values.collect {|v| v.clone}
+    self
+  end
+  
+  # Move an issue to a new project and tracker
+  def move_to(new_project, new_tracker = nil)
+    transaction do
+      if new_project && project_id != new_project.id
+        # delete issue relations
+        unless Setting.cross_project_issue_relations?
+          self.relations_from.clear
+          self.relations_to.clear
+        end
+        # issue is moved to another project
+        # reassign to the category with same name if any
+        new_category = category.nil? ? nil : new_project.issue_categories.find_by_name(category.name)
+        self.category = new_category
+        self.fixed_version = nil
+        self.project = new_project
+      end
+      if new_tracker
+        self.tracker = new_tracker
+      end
+      if save
+        # Manually update project_id on related time entries
+        TimeEntry.update_all("project_id = #{new_project.id}", {:issue_id => id})
+      else
+        rollback_db_transaction
+        return false
+      end
+    end
+    return true
+  end
+  
+  def priority_id=(pid)
+    self.priority = nil
+    write_attribute(:priority_id, pid)
+  end
+  
+  def estimated_hours=(h)
+    write_attribute :estimated_hours, (h.is_a?(String) ? h.to_hours : h)
+  end
+  
+  def validate
+    if self.due_date.nil? && @attributes['due_date'] && !@attributes['due_date'].empty?
+      errors.add :due_date, :activerecord_error_not_a_date
+    end
+    
+    if self.due_date and self.start_date and self.due_date < self.start_date
+      errors.add :due_date, :activerecord_error_greater_than_start_date
+    end
+    
+    if start_date && soonest_start && start_date < soonest_start
+      errors.add :start_date, :activerecord_error_invalid
+    end
+  end
+  
+  def validate_on_create
+    errors.add :tracker_id, :activerecord_error_invalid unless project.trackers.include?(tracker)
+  end
+  
+  def before_create
+    # default assignment based on category
+    if assigned_to.nil? && category && category.assigned_to
+      self.assigned_to = category.assigned_to
+    end
+  end
+  
+  def before_save  
+    if @current_journal
+      # attributes changes
+      (Issue.column_names - %w(id description)).each {|c|
+        @current_journal.details << JournalDetail.new(:property => 'attr',
+                                                      :prop_key => c,
+                                                      :old_value => @issue_before_change.send(c),
+                                                      :value => send(c)) unless send(c)==@issue_before_change.send(c)
+      }
+      # custom fields changes
+      custom_values.each {|c|
+        next if (@custom_values_before_change[c.custom_field_id]==c.value ||
+                  (@custom_values_before_change[c.custom_field_id].blank? && c.value.blank?))
+        @current_journal.details << JournalDetail.new(:property => 'cf', 
+                                                      :prop_key => c.custom_field_id,
+                                                      :old_value => @custom_values_before_change[c.custom_field_id],
+                                                      :value => c.value)
+      }      
+      @current_journal.save
+    end
+    # Save the issue even if the journal is not saved (because empty)
+    true
+  end
+  
+  def after_save
+    # Reload is needed in order to get the right status
+    reload
+    
+    # Update start/due dates of following issues
+    relations_from.each(&:set_issue_to_dates)
+    
+    # Close duplicates if the issue was closed
+    if @issue_before_change && !@issue_before_change.closed? && self.closed?
+      duplicates.each do |duplicate|
+        # Reload is need in case the duplicate was updated by a previous duplicate
+        duplicate.reload
+        # Don't re-close it if it's already closed
+        next if duplicate.closed?
+        # Same user and notes
+        duplicate.init_journal(@current_journal.user, @current_journal.notes)
+        duplicate.update_attribute :status, self.status
+      end
+    end
+  end
+  
+  def init_journal(user, notes = "")
+    @current_journal ||= Journal.new(:journalized => self, :user => user, :notes => notes)
+    @issue_before_change = self.clone
+    @issue_before_change.status = self.status
+    @custom_values_before_change = {}
+    self.custom_values.each {|c| @custom_values_before_change.store c.custom_field_id, c.value }
+    # Make sure updated_on is updated when adding a note.
+    updated_on_will_change!
+    @current_journal
+  end
+  
+  # Return true if the issue is closed, otherwise false
+  def closed?
+    self.status.is_closed?
+  end
+  
+  # Returns true if the issue is overdue
+  def overdue?
+    !due_date.nil? && (due_date < Date.today)
+  end
+  
+  # Users the issue can be assigned to
+  def assignable_users
+    project.assignable_users
+  end
+  
+  # Returns an array of status that user is able to apply
+  def new_statuses_allowed_to(user)
+    statuses = status.find_new_statuses_allowed_to(user.role_for_project(project), tracker)
+    statuses << status unless statuses.empty?
+    statuses.uniq.sort
+  end
+  
+  # Returns the mail adresses of users that should be notified for the issue
+  def recipients
+    recipients = project.recipients
+    # Author and assignee are always notified unless they have been locked
+    recipients << author.mail if author && author.active?
+    recipients << assigned_to.mail if assigned_to && assigned_to.active?
+    recipients.compact.uniq
+  end
+  
+  def spent_hours
+    @spent_hours ||= time_entries.sum(:hours) || 0
+  end
+  
+  def relations
+    (relations_from + relations_to).sort
+  end
+  
+  def all_dependent_issues
+    dependencies = []
+    relations_from.each do |relation|
+      dependencies << relation.issue_to
+      dependencies += relation.issue_to.all_dependent_issues
+    end
+    dependencies
+  end
+  
+  # Returns an array of issues that duplicate this one
+  def duplicates
+    relations_to.select {|r| r.relation_type == IssueRelation::TYPE_DUPLICATES}.collect {|r| r.issue_from}
+  end
+  
+  # Returns the due date or the target due date if any
+  # Used on gantt chart
+  def due_before
+    due_date || (fixed_version ? fixed_version.effective_date : nil)
+  end
+  
+  def duration
+    (start_date && due_date) ? due_date - start_date : 0
+  end
+  
+  def soonest_start
+    @soonest_start ||= relations_to.collect{|relation| relation.successor_soonest_start}.compact.min
+  end
+  
+  def self.visible_by(usr)
+    with_scope(:find => { :conditions => Project.visible_by(usr) }) do
+      yield
+    end
+  end
+  
+  def to_s
+    "#{tracker} ##{id}: #{subject}"
+  end
+  
+  private
+  
+  # Callback on attachment deletion
+  def attachment_removed(obj)
+    journal = init_journal(User.current)
+    journal.details << JournalDetail.new(:property => 'attachment',
+                                         :prop_key => obj.id,
+                                         :old_value => obj.filename)
+    journal.save
+  end
+end

nested_projects/app/models/issue_category.rb

@@ -0,0 +1,43 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class IssueCategory < ActiveRecord::Base
+  belongs_to :project
+  belongs_to :assigned_to, :class_name => 'User', :foreign_key => 'assigned_to_id'
+  has_many :issues, :foreign_key => 'category_id', :dependent => :nullify
+  
+  validates_presence_of :name
+  validates_uniqueness_of :name, :scope => [:project_id]
+  validates_length_of :name, :maximum => 30
+  
+  alias :destroy_without_reassign :destroy
+  
+  # Destroy the category
+  # If a category is specified, issues are reassigned to this category
+  def destroy(reassign_to = nil)
+    if reassign_to && reassign_to.is_a?(IssueCategory) && reassign_to.project == self.project
+      Issue.update_all("category_id = #{reassign_to.id}", "category_id = #{id}")
+    end
+    destroy_without_reassign
+  end
+  
+  def <=>(category)
+    name <=> category.name
+  end
+  
+  def to_s; name end
+end

nested_projects/app/models/issue_custom_field.rb

@@ -0,0 +1,27 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class IssueCustomField < CustomField
+  has_and_belongs_to_many :projects, :join_table => "#{table_name_prefix}custom_fields_projects#{table_name_suffix}", :foreign_key => "custom_field_id"
+  has_and_belongs_to_many :trackers, :join_table => "#{table_name_prefix}custom_fields_trackers#{table_name_suffix}", :foreign_key => "custom_field_id"
+  has_many :issues, :through => :issue_custom_values
+    
+  def type_name
+    :label_issue_plural
+  end
+end
+

nested_projects/app/models/issue_relation.rb

@@ -0,0 +1,79 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class IssueRelation < ActiveRecord::Base
+  belongs_to :issue_from, :class_name => 'Issue', :foreign_key => 'issue_from_id'
+  belongs_to :issue_to, :class_name => 'Issue', :foreign_key => 'issue_to_id'
+  
+  TYPE_RELATES      = "relates"
+  TYPE_DUPLICATES   = "duplicates"
+  TYPE_BLOCKS       = "blocks"
+  TYPE_PRECEDES     = "precedes"
+  
+  TYPES = { TYPE_RELATES =>     { :name => :label_relates_to, :sym_name => :label_relates_to, :order => 1 },
+            TYPE_DUPLICATES =>  { :name => :label_duplicates, :sym_name => :label_duplicated_by, :order => 2 },
+            TYPE_BLOCKS =>      { :name => :label_blocks, :sym_name => :label_blocked_by, :order => 3 },
+            TYPE_PRECEDES =>    { :name => :label_precedes, :sym_name => :label_follows, :order => 4 },
+          }.freeze
+  
+  validates_presence_of :issue_from, :issue_to, :relation_type
+  validates_inclusion_of :relation_type, :in => TYPES.keys
+  validates_numericality_of :delay, :allow_nil => true
+  validates_uniqueness_of :issue_to_id, :scope => :issue_from_id
+  
+  def validate
+    if issue_from && issue_to
+      errors.add :issue_to_id, :activerecord_error_invalid if issue_from_id == issue_to_id
+      errors.add :issue_to_id, :activerecord_error_not_same_project unless issue_from.project_id == issue_to.project_id || Setting.cross_project_issue_relations?
+      errors.add_to_base :activerecord_error_circular_dependency if issue_to.all_dependent_issues.include? issue_from
+    end
+  end
+  
+  def other_issue(issue)
+    (self.issue_from_id == issue.id) ? issue_to : issue_from
+  end
+  
+  def label_for(issue)
+    TYPES[relation_type] ? TYPES[relation_type][(self.issue_from_id == issue.id) ? :name : :sym_name] : :unknow
+  end
+  
+  def before_save
+    if TYPE_PRECEDES == relation_type
+      self.delay ||= 0
+    else
+      self.delay = nil
+    end
+    set_issue_to_dates
+  end
+  
+  def set_issue_to_dates
+    soonest_start = self.successor_soonest_start
+    if soonest_start && (!issue_to.start_date || issue_to.start_date < soonest_start)
+      issue_to.start_date, issue_to.due_date = successor_soonest_start, successor_soonest_start + issue_to.duration
+      issue_to.save
+    end
+  end
+  
+  def successor_soonest_start
+    return nil unless (TYPE_PRECEDES == self.relation_type) && (issue_from.start_date || issue_from.due_date)
+    (issue_from.due_date || issue_from.start_date) + 1 + delay
+  end
+  
+  def <=>(relation)
+    TYPES[self.relation_type][:order] <=> TYPES[relation.relation_type][:order]
+  end
+end

nested_projects/app/models/issue_status.rb

@@ -0,0 +1,69 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class IssueStatus < ActiveRecord::Base
+  before_destroy :check_integrity  
+  has_many :workflows, :foreign_key => "old_status_id", :dependent => :delete_all
+  acts_as_list
+
+  validates_presence_of :name
+  validates_uniqueness_of :name
+  validates_length_of :name, :maximum => 30
+  validates_format_of :name, :with => /^[\w\s\'\-]*$/i
+
+  def after_save
+    IssueStatus.update_all("is_default=#{connection.quoted_false}", ['id <> ?', id]) if self.is_default?
+  end  
+  
+  # Returns the default status for new issues
+  def self.default
+    find(:first, :conditions =>["is_default=?", true])
+  end
+
+  # Returns an array of all statuses the given role can switch to
+  # Uses association cache when called more than one time
+  def new_statuses_allowed_to(role, tracker)
+    new_statuses = workflows.select {|w| w.role_id == role.id && w.tracker_id == tracker.id}.collect{|w| w.new_status} if role && tracker
+    new_statuses ? new_statuses.compact.sort{|x, y| x.position <=> y.position } : []
+  end
+  
+  # Same thing as above but uses a database query
+  # More efficient than the previous method if called just once
+  def find_new_statuses_allowed_to(role, tracker)  
+    new_statuses = workflows.find(:all, 
+                                   :include => :new_status,
+                                   :conditions => ["role_id=? and tracker_id=?", role.id, tracker.id]).collect{ |w| w.new_status }.compact  if role && tracker
+    new_statuses ? new_statuses.sort{|x, y| x.position <=> y.position } : []
+  end
+  
+  def new_status_allowed_to?(status, role, tracker)
+    status && role && tracker ?
+      !workflows.find(:first, :conditions => {:new_status_id => status.id, :role_id => role.id, :tracker_id => tracker.id}).nil? :
+      false
+  end
+
+  def <=>(status)
+    position <=> status.position
+  end
+  
+  def to_s; name end
+
+private
+  def check_integrity
+    raise "Can't delete status" if Issue.find(:first, :conditions => ["status_id=?", self.id])
+  end
+end

nested_projects/app/models/journal.rb

@@ -0,0 +1,68 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Journal < ActiveRecord::Base
+  belongs_to :journalized, :polymorphic => true
+  # added as a quick fix to allow eager loading of the polymorphic association
+  # since always associated to an issue, for now
+  belongs_to :issue, :foreign_key => :journalized_id
+  
+  belongs_to :user
+  has_many :details, :class_name => "JournalDetail", :dependent => :delete_all
+  attr_accessor :indice
+  
+  acts_as_event :title => Proc.new {|o| status = ((s = o.new_status) ? " (#{s})" : nil); "#{o.issue.tracker} ##{o.issue.id}#{status}: #{o.issue.subject}" },
+                :description => :notes,
+                :author => :user,
+                :type => Proc.new {|o| (s = o.new_status) ? (s.is_closed? ? 'issue-closed' : 'issue-edit') : 'issue-note' },
+                :url => Proc.new {|o| {:controller => 'issues', :action => 'show', :id => o.issue.id, :anchor => "change-#{o.id}"}}
+
+  acts_as_activity_provider :type => 'issues',
+                            :permission => :view_issues,
+                            :author_key => :user_id,
+                            :find_options => {:include => [{:issue => :project}, :details, :user],
+                                              :conditions => "#{Journal.table_name}.journalized_type = 'Issue' AND" +
+                                                             " (#{JournalDetail.table_name}.prop_key = 'status_id' OR #{Journal.table_name}.notes <> '')"}
+  
+  def save
+    # Do not save an empty journal
+    (details.empty? && notes.blank?) ? false : super
+  end
+  
+  # Returns the new status if the journal contains a status change, otherwise nil
+  def new_status
+    c = details.detect {|detail| detail.prop_key == 'status_id'}
+    (c && c.value) ? IssueStatus.find_by_id(c.value.to_i) : nil
+  end
+  
+  def new_value_for(prop)
+    c = details.detect {|detail| detail.prop_key == prop}
+    c ? c.value : nil
+  end
+  
+  def editable_by?(usr)
+    usr && usr.logged? && (usr.allowed_to?(:edit_issue_notes, project) || (self.user == usr && usr.allowed_to?(:edit_own_issue_notes, project)))
+  end
+  
+  def project
+    journalized.respond_to?(:project) ? journalized.project : nil
+  end
+  
+  def attachments
+    journalized.respond_to?(:attachments) ? journalized.attachments : nil
+  end
+end

nested_projects/app/models/journal_detail.rb

@@ -0,0 +1,25 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class JournalDetail < ActiveRecord::Base
+  belongs_to :journal
+  
+  def before_save
+    self.value = value[0..254] if value && value.is_a?(String)
+    self.old_value = old_value[0..254] if old_value && old_value.is_a?(String)
+  end
+end

nested_projects/app/models/mail_handler.rb

@@ -0,0 +1,186 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class MailHandler < ActionMailer::Base
+  include ActionView::Helpers::SanitizeHelper
+
+  class UnauthorizedAction < StandardError; end
+  class MissingInformation < StandardError; end
+  
+  attr_reader :email, :user
+
+  def self.receive(email, options={})
+    @@handler_options = options.dup
+    
+    @@handler_options[:issue] ||= {}
+    
+    @@handler_options[:allow_override] = @@handler_options[:allow_override].split(',').collect(&:strip) if @@handler_options[:allow_override].is_a?(String)
+    @@handler_options[:allow_override] ||= []
+    # Project needs to be overridable if not specified
+    @@handler_options[:allow_override] << 'project' unless @@handler_options[:issue].has_key?(:project)
+    # Status overridable by default
+    @@handler_options[:allow_override] << 'status' unless @@handler_options[:issue].has_key?(:status)    
+    super email
+  end
+  
+  # Processes incoming emails
+  def receive(email)
+    @email = email
+    @user = User.active.find_by_mail(email.from.first.to_s.strip)
+    unless @user
+      # Unknown user => the email is ignored
+      # TODO: ability to create the user's account
+      logger.info "MailHandler: email submitted by unknown user [#{email.from.first}]" if logger && logger.info
+      return false
+    end
+    User.current = @user
+    dispatch
+  end
+  
+  private
+
+  ISSUE_REPLY_SUBJECT_RE = %r{\[[^\]]+#(\d+)\]}
+  
+  def dispatch
+    if m = email.subject.match(ISSUE_REPLY_SUBJECT_RE)
+      receive_issue_update(m[1].to_i)
+    else
+      receive_issue
+    end
+  rescue ActiveRecord::RecordInvalid => e
+    # TODO: send a email to the user
+    logger.error e.message if logger
+    false
+  rescue MissingInformation => e
+    logger.error "MailHandler: missing information from #{user}: #{e.message}" if logger
+    false
+  rescue UnauthorizedAction => e
+    logger.error "MailHandler: unauthorized attempt from #{user}" if logger
+    false
+  end
+  
+  # Creates a new issue
+  def receive_issue
+    project = target_project
+    tracker = (get_keyword(:tracker) && project.trackers.find_by_name(get_keyword(:tracker))) || project.trackers.find(:first)
+    category = (get_keyword(:category) && project.issue_categories.find_by_name(get_keyword(:category)))
+    priority = (get_keyword(:priority) && Enumeration.find_by_opt_and_name('IPRI', get_keyword(:priority)))
+    status =  (get_keyword(:status) && IssueStatus.find_by_name(get_keyword(:status)))
+
+    # check permission
+    raise UnauthorizedAction unless user.allowed_to?(:add_issues, project)
+    issue = Issue.new(:author => user, :project => project, :tracker => tracker, :category => category, :priority => priority)
+    # check workflow
+    if status && issue.new_statuses_allowed_to(user).include?(status)
+      issue.status = status
+    end
+    issue.subject = email.subject.chomp.toutf8
+    issue.description = plain_text_body
+    issue.save!
+    add_attachments(issue)
+    logger.info "MailHandler: issue ##{issue.id} created by #{user}" if logger && logger.info
+    # send notification before adding watchers since they were cc'ed
+    Mailer.deliver_issue_add(issue) if Setting.notified_events.include?('issue_added')
+    # add To and Cc as watchers
+    add_watchers(issue)
+    
+    issue
+  end
+  
+  def target_project
+    # TODO: other ways to specify project:
+    # * parse the email To field
+    # * specific project (eg. Setting.mail_handler_target_project)
+    target = Project.find_by_identifier(get_keyword(:project))
+    raise MissingInformation.new('Unable to determine target project') if target.nil?
+    target
+  end
+  
+  # Adds a note to an existing issue
+  def receive_issue_update(issue_id)
+    status =  (get_keyword(:status) && IssueStatus.find_by_name(get_keyword(:status)))
+    
+    issue = Issue.find_by_id(issue_id)
+    return unless issue
+    # check permission
+    raise UnauthorizedAction unless user.allowed_to?(:add_issue_notes, issue.project) || user.allowed_to?(:edit_issues, issue.project)
+    raise UnauthorizedAction unless status.nil? || user.allowed_to?(:edit_issues, issue.project)
+
+    # add the note
+    journal = issue.init_journal(user, plain_text_body)
+    add_attachments(issue)
+    # check workflow
+    if status && issue.new_statuses_allowed_to(user).include?(status)
+      issue.status = status
+    end
+    issue.save!
+    logger.info "MailHandler: issue ##{issue.id} updated by #{user}" if logger && logger.info
+    Mailer.deliver_issue_edit(journal) if Setting.notified_events.include?('issue_updated')
+    journal
+  end
+  
+  def add_attachments(obj)
+    if email.has_attachments?
+      email.attachments.each do |attachment|
+        Attachment.create(:container => obj,
+                          :file => attachment,
+                          :author => user,
+                          :content_type => attachment.content_type)
+      end
+    end
+  end
+  
+  # Adds To and Cc as watchers of the given object if the sender has the
+  # appropriate permission
+  def add_watchers(obj)
+    if user.allowed_to?("add_#{obj.class.name.underscore}_watchers".to_sym, obj.project)
+      addresses = [email.to, email.cc].flatten.compact.uniq.collect {|a| a.strip.downcase}
+      unless addresses.empty?
+        watchers = User.active.find(:all, :conditions => ['LOWER(mail) IN (?)', addresses])
+        watchers.each {|w| obj.add_watcher(w)}
+      end
+    end
+  end
+  
+  def get_keyword(attr)
+    if @@handler_options[:allow_override].include?(attr.to_s) && plain_text_body =~ /^#{attr}:[ \t]*(.+)$/i
+      $1.strip
+    elsif !@@handler_options[:issue][attr].blank?
+      @@handler_options[:issue][attr]
+    end
+  end
+  
+  # Returns the text/plain part of the email
+  # If not found (eg. HTML-only email), returns the body with tags removed
+  def plain_text_body
+    return @plain_text_body unless @plain_text_body.nil?
+    parts = @email.parts.collect {|c| (c.respond_to?(:parts) && !c.parts.empty?) ? c.parts : c}.flatten
+    if parts.empty?
+      parts << @email
+    end
+    plain_text_part = parts.detect {|p| p.content_type == 'text/plain'}
+    if plain_text_part.nil?
+      # no text/plain part found, assuming html-only email
+      # strip html tags and remove doctype directive
+      @plain_text_body = strip_tags(@email.body.to_s)
+      @plain_text_body.gsub! %r{^<!DOCTYPE .*$}, ''
+    else
+      @plain_text_body = plain_text_part.body.to_s
+    end
+    @plain_text_body.strip!
+  end
+end

nested_projects/app/models/mailer.rb

@@ -0,0 +1,250 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Mailer < ActionMailer::Base
+  helper :application
+  helper :issues
+  helper :custom_fields
+
+  include ActionController::UrlWriter
+
+  def issue_add(issue)
+    redmine_headers 'Project' => issue.project.identifier,
+                    'Issue-Id' => issue.id,
+                    'Issue-Author' => issue.author.login
+    redmine_headers 'Issue-Assignee' => issue.assigned_to.login if issue.assigned_to
+    recipients issue.recipients
+    subject "[#{issue.project.name} - #{issue.tracker.name} ##{issue.id}] (#{issue.status.name}) #{issue.subject}"
+    body :issue => issue,
+         :issue_url => url_for(:controller => 'issues', :action => 'show', :id => issue)
+  end
+
+  def issue_edit(journal)
+    issue = journal.journalized
+    redmine_headers 'Project' => issue.project.identifier,
+                    'Issue-Id' => issue.id,
+                    'Issue-Author' => issue.author.login
+    redmine_headers 'Issue-Assignee' => issue.assigned_to.login if issue.assigned_to
+    recipients issue.recipients
+    # Watchers in cc
+    cc(issue.watcher_recipients - @recipients)
+    s = "[#{issue.project.name} - #{issue.tracker.name} ##{issue.id}] "
+    s << "(#{issue.status.name}) " if journal.new_value_for('status_id')
+    s << issue.subject
+    subject s
+    body :issue => issue,
+         :journal => journal,
+         :issue_url => url_for(:controller => 'issues', :action => 'show', :id => issue)
+  end
+
+  def reminder(user, issues, days)
+    set_language_if_valid user.language
+    recipients user.mail
+    subject l(:mail_subject_reminder, issues.size)
+    body :issues => issues,
+         :days => days,
+         :issues_url => url_for(:controller => 'issues', :action => 'index', :set_filter => 1, :assigned_to_id => user.id, :sort_key => 'issues.due_date', :sort_order => 'asc')
+  end
+
+  def document_added(document)
+    redmine_headers 'Project' => document.project.identifier
+    recipients document.project.recipients
+    subject "[#{document.project.name}] #{l(:label_document_new)}: #{document.title}"
+    body :document => document,
+         :document_url => url_for(:controller => 'documents', :action => 'show', :id => document)
+  end
+
+  def attachments_added(attachments)
+    container = attachments.first.container
+    added_to = ''
+    added_to_url = ''
+    case container.class.name
+    when 'Project'
+      added_to_url = url_for(:controller => 'projects', :action => 'list_files', :id => container)
+      added_to = "#{l(:label_project)}: #{container}"
+    when 'Version'
+      added_to_url = url_for(:controller => 'projects', :action => 'list_files', :id => container.project_id)
+      added_to = "#{l(:label_version)}: #{container.name}"
+    when 'Document'
+      added_to_url = url_for(:controller => 'documents', :action => 'show', :id => container.id)
+      added_to = "#{l(:label_document)}: #{container.title}"
+    end
+    redmine_headers 'Project' => container.project.identifier
+    recipients container.project.recipients
+    subject "[#{container.project.name}] #{l(:label_attachment_new)}"
+    body :attachments => attachments,
+         :added_to => added_to,
+         :added_to_url => added_to_url
+  end
+
+  def news_added(news)
+    redmine_headers 'Project' => news.project.identifier
+    recipients news.project.recipients
+    subject "[#{news.project.name}] #{l(:label_news)}: #{news.title}"
+    body :news => news,
+         :news_url => url_for(:controller => 'news', :action => 'show', :id => news)
+  end
+
+  def message_posted(message, recipients)
+    redmine_headers 'Project' => message.project.identifier,
+                    'Topic-Id' => (message.parent_id || message.id)
+    recipients(recipients)
+    subject "[#{message.board.project.name} - #{message.board.name}] #{message.subject}"
+    body :message => message,
+         :message_url => url_for(:controller => 'messages', :action => 'show', :board_id => message.board_id, :id => message.root)
+  end
+
+  def account_information(user, password)
+    set_language_if_valid user.language
+    recipients user.mail
+    subject l(:mail_subject_register, Setting.app_title)
+    body :user => user,
+         :password => password,
+         :login_url => url_for(:controller => 'account', :action => 'login')
+  end
+
+  def account_activation_request(user)
+    # Send the email to all active administrators
+    recipients User.active.find(:all, :conditions => {:admin => true}).collect { |u| u.mail }.compact
+    subject l(:mail_subject_account_activation_request, Setting.app_title)
+    body :user => user,
+         :url => url_for(:controller => 'users', :action => 'index', :status => User::STATUS_REGISTERED, :sort_key => 'created_on', :sort_order => 'desc')
+  end
+
+  def lost_password(token)
+    set_language_if_valid(token.user.language)
+    recipients token.user.mail
+    subject l(:mail_subject_lost_password, Setting.app_title)
+    body :token => token,
+         :url => url_for(:controller => 'account', :action => 'lost_password', :token => token.value)
+  end
+
+  def register(token)
+    set_language_if_valid(token.user.language)
+    recipients token.user.mail
+    subject l(:mail_subject_register, Setting.app_title)
+    body :token => token,
+         :url => url_for(:controller => 'account', :action => 'activate', :token => token.value)
+  end
+
+  def test(user)
+    set_language_if_valid(user.language)
+    recipients user.mail
+    subject 'Redmine test'
+    body :url => url_for(:controller => 'welcome')
+  end
+
+  # Overrides default deliver! method to prevent from sending an email
+  # with no recipient, cc or bcc
+  def deliver!(mail = @mail)
+    return false if (recipients.nil? || recipients.empty?) &&
+                    (cc.nil? || cc.empty?) &&
+                    (bcc.nil? || bcc.empty?)
+    super
+  end
+
+  # Sends reminders to issue assignees
+  # Available options:
+  # * :days     => how many days in the future to remind about (defaults to 7)
+  # * :tracker  => id of tracker for filtering issues (defaults to all trackers)
+  # * :project  => id or identifier of project to process (defaults to all projects)
+  def self.reminders(options={})
+    days = options[:days] || 7
+    project = options[:project] ? Project.find(options[:project]) : nil
+    tracker = options[:tracker] ? Tracker.find(options[:tracker]) : nil
+
+    s = ARCondition.new ["#{IssueStatus.table_name}.is_closed = ? AND #{Issue.table_name}.due_date <= ?", false, days.day.from_now.to_date]
+    s << "#{Issue.table_name}.assigned_to_id IS NOT NULL"
+    s << "#{Project.table_name}.status = #{Project::STATUS_ACTIVE}"
+    s << "#{Issue.table_name}.project_id = #{project.id}" if project
+    s << "#{Issue.table_name}.tracker_id = #{tracker.id}" if tracker
+
+    issues_by_assignee = Issue.find(:all, :include => [:status, :assigned_to, :project, :tracker],
+                                          :conditions => s.conditions
+                                    ).group_by(&:assigned_to)
+    issues_by_assignee.each do |assignee, issues|
+      deliver_reminder(assignee, issues, days) unless assignee.nil?
+    end
+  end
+
+  private
+  def initialize_defaults(method_name)
+    super
+    set_language_if_valid Setting.default_language
+    from Setting.mail_from
+    
+    # URL options
+    h = Setting.host_name
+    h = h.to_s.gsub(%r{\/.*$}, '') unless ActionController::AbstractRequest.relative_url_root.blank?
+    default_url_options[:host] = h
+    default_url_options[:protocol] = Setting.protocol
+    
+    # Common headers
+    headers 'X-Mailer' => 'Redmine',
+            'X-Redmine-Host' => Setting.host_name,
+            'X-Redmine-Site' => Setting.app_title
+  end
+
+  # Appends a Redmine header field (name is prepended with 'X-Redmine-')
+  def redmine_headers(h)
+    h.each { |k,v| headers["X-Redmine-#{k}"] = v }
+  end
+
+  # Overrides the create_mail method
+  def create_mail
+    # Removes the current user from the recipients and cc
+    # if he doesn't want to receive notifications about what he does
+    if User.current.pref[:no_self_notified]
+      recipients.delete(User.current.mail) if recipients
+      cc.delete(User.current.mail) if cc
+    end
+    # Blind carbon copy recipients
+    if Setting.bcc_recipients?
+      bcc([recipients, cc].flatten.compact.uniq)
+      recipients []
+      cc []
+    end
+    super
+  end
+
+  # Renders a message with the corresponding layout
+  def render_message(method_name, body)
+    layout = method_name.match(%r{text\.html\.(rhtml|rxml)}) ? 'layout.text.html.rhtml' : 'layout.text.plain.rhtml'
+    body[:content_for_layout] = render(:file => method_name, :body => body)
+    ActionView::Base.new(template_root, body, self).render(:file => "mailer/#{layout}", :use_full_path => true)
+  end
+
+  # for the case of plain text only
+  def body(*params)
+    value = super(*params)
+    if Setting.plain_text_mail?
+      templates = Dir.glob("#{template_path}/#{@template}.text.plain.{rhtml,erb}")
+      unless String === @body or templates.empty?
+        template = File.basename(templates.first)
+        @body[:content_for_layout] = render(:file => template, :body => @body)
+        @body = ActionView::Base.new(template_root, @body, self).render(:file => "mailer/layout.text.plain.rhtml", :use_full_path => true)
+        return @body
+      end
+    end
+    return value
+  end
+
+  # Makes partial rendering work with Rails 1.2 (retro-compatibility)
+  def self.controller_path
+    ''
+  end unless respond_to?('controller_path')
+end

nested_projects/app/models/member.rb

@@ -0,0 +1,42 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Member < ActiveRecord::Base
+  belongs_to :user
+  belongs_to :role
+  belongs_to :project
+
+  validates_presence_of :role, :user, :project
+  validates_uniqueness_of :user_id, :scope => :project_id
+
+  def validate
+    errors.add :role_id, :activerecord_error_invalid if role && !role.member?
+  end
+  
+  def name
+    self.user.name
+  end
+  
+  def <=>(member)
+    role == member.role ? (user <=> member.user) : (role <=> member.role)
+  end
+  
+  def before_destroy
+    # remove category based auto assignments for this member
+    IssueCategory.update_all "assigned_to_id = NULL", ["project_id = ? AND assigned_to_id = ?", project.id, user.id]
+  end
+end

nested_projects/app/models/message.rb

@@ -0,0 +1,89 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Message < ActiveRecord::Base
+  belongs_to :board
+  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
+  acts_as_tree :counter_cache => :replies_count, :order => "#{Message.table_name}.created_on ASC"
+  acts_as_attachable
+  belongs_to :last_reply, :class_name => 'Message', :foreign_key => 'last_reply_id'
+  
+  acts_as_searchable :columns => ['subject', 'content'],
+                     :include => {:board, :project},
+                     :project_key => 'project_id',
+                     :date_column => "#{table_name}.created_on"
+  acts_as_event :title => Proc.new {|o| "#{o.board.name}: #{o.subject}"},
+                :description => :content,
+                :type => Proc.new {|o| o.parent_id.nil? ? 'message' : 'reply'},
+                :url => Proc.new {|o| {:controller => 'messages', :action => 'show', :board_id => o.board_id}.merge(o.parent_id.nil? ? {:id => o.id} : 
+                                                                                                                                       {:id => o.parent_id, :anchor => "message-#{o.id}"})}
+
+  acts_as_activity_provider :find_options => {:include => [{:board => :project}, :author]},
+                            :author_key => :author_id
+  acts_as_watchable
+    
+  attr_protected :locked, :sticky
+  validates_presence_of :subject, :content
+  validates_length_of :subject, :maximum => 255
+  
+  after_create :add_author_as_watcher
+  
+  def validate_on_create
+    # Can not reply to a locked topic
+    errors.add_to_base 'Topic is locked' if root.locked? && self != root
+  end
+  
+  def after_create
+    board.update_attribute(:last_message_id, self.id)
+    board.increment! :messages_count
+    if parent
+      parent.reload.update_attribute(:last_reply_id, self.id)
+    else
+      board.increment! :topics_count
+    end
+  end
+  
+  def after_destroy
+    # The following line is required so that the previous counter
+    # updates (due to children removal) are not overwritten
+    board.reload
+    board.decrement! :messages_count
+    board.decrement! :topics_count unless parent
+  end
+  
+  def sticky?
+    sticky == 1
+  end
+  
+  def project
+    board.project
+  end
+
+  def editable_by?(usr)
+    usr && usr.logged? && (usr.allowed_to?(:edit_messages, project) || (self.author == usr && usr.allowed_to?(:edit_own_messages, project)))
+  end
+
+  def destroyable_by?(usr)
+    usr && usr.logged? && (usr.allowed_to?(:delete_messages, project) || (self.author == usr && usr.allowed_to?(:delete_own_messages, project)))
+  end
+  
+  private
+  
+  def add_author_as_watcher
+    Watcher.create(:watchable => self.root, :user => author)
+  end
+end

nested_projects/app/models/message_observer.rb

@@ -0,0 +1,30 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class MessageObserver < ActiveRecord::Observer
+  def after_create(message)
+    recipients = []
+    # send notification to the topic watchers
+    recipients += message.root.watcher_recipients
+    # send notification to the board watchers
+    recipients += message.board.watcher_recipients
+    # send notification to project members who want to be notified
+    recipients += message.board.project.recipients
+    recipients = recipients.compact.uniq
+    Mailer.deliver_message_posted(message, recipients) if !recipients.empty? && Setting.notified_events.include?('message_posted')
+  end
+end

nested_projects/app/models/news.rb

@@ -0,0 +1,36 @@
+# Redmine - project management software
+# Copyright (C) 2006-2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class News < ActiveRecord::Base
+  belongs_to :project
+  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
+  has_many :comments, :as => :commented, :dependent => :delete_all, :order => "created_on"
+  
+  validates_presence_of :title, :description
+  validates_length_of :title, :maximum => 60
+  validates_length_of :summary, :maximum => 255
+
+  acts_as_searchable :columns => ['title', "#{table_name}.description"], :include => :project
+  acts_as_event :url => Proc.new {|o| {:controller => 'news', :action => 'show', :id => o.id}}
+  acts_as_activity_provider :find_options => {:include => [:project, :author]},
+                            :author_key => :author_id
+  
+  # returns latest news for projects visible by user
+  def self.latest(user = User.current, count = 5)
+    find(:all, :limit => count, :conditions => Project.allowed_to_condition(user, :view_news), :include => [ :author, :project ], :order => "#{News.table_name}.created_on DESC")	
+  end
+end

nested_projects/app/models/project.rb

@@ -0,0 +1,276 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Project < ActiveRecord::Base
+  # Project statuses
+  STATUS_ACTIVE     = 1
+  STATUS_ARCHIVED   = 9
+  
+  has_many :members, :include => :user, :conditions => "#{User.table_name}.status=#{User::STATUS_ACTIVE}"
+  has_many :users, :through => :members
+  has_many :enabled_modules, :dependent => :delete_all
+  has_and_belongs_to_many :trackers, :order => "#{Tracker.table_name}.position"
+  has_many :issues, :dependent => :destroy, :order => "#{Issue.table_name}.created_on DESC", :include => [:status, :tracker]
+  has_many :issue_changes, :through => :issues, :source => :journals
+  has_many :versions, :dependent => :destroy, :order => "#{Version.table_name}.effective_date DESC, #{Version.table_name}.name DESC"
+  has_many :time_entries, :dependent => :delete_all
+  has_many :queries, :dependent => :delete_all
+  has_many :documents, :dependent => :destroy
+  has_many :news, :dependent => :delete_all, :include => :author
+  has_many :issue_categories, :dependent => :delete_all, :order => "#{IssueCategory.table_name}.name"
+  has_many :boards, :dependent => :destroy, :order => "position ASC"
+  has_one :repository, :dependent => :destroy
+  has_many :changesets, :through => :repository
+  has_one :wiki, :dependent => :destroy
+  # Custom field for the project issues
+  has_and_belongs_to_many :issue_custom_fields, 
+                          :class_name => 'IssueCustomField',
+                          :order => "#{CustomField.table_name}.position",
+                          :join_table => "#{table_name_prefix}custom_fields_projects#{table_name_suffix}",
+                          :association_foreign_key => 'custom_field_id'
+                          
+  acts_as_tree :order => "name", :counter_cache => true
+  acts_as_attachable :view_permission => :view_files,
+                     :delete_permission => :manage_files
+
+  acts_as_customizable
+  acts_as_searchable :columns => ['name', 'description'], :project_key => 'id', :permission => nil
+  acts_as_event :title => Proc.new {|o| "#{l(:label_project)}: #{o.name}"},
+                :url => Proc.new {|o| {:controller => 'projects', :action => 'show', :id => o.id}},
+                :author => nil
+
+  attr_protected :status, :enabled_module_names
+  
+  validates_presence_of :name, :identifier
+  validates_uniqueness_of :name, :identifier
+  validates_associated :repository, :wiki
+  validates_length_of :name, :maximum => 30
+  validates_length_of :homepage, :maximum => 255
+  validates_length_of :identifier, :in => 3..20
+  validates_format_of :identifier, :with => /^[a-z0-9\-]*$/
+  
+  before_destroy :delete_all_members
+
+  named_scope :has_module, lambda { |mod| { :conditions => ["#{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name=?)", mod.to_s] } }
+  
+  def identifier=(identifier)
+    super unless identifier_frozen?
+  end
+  
+  def identifier_frozen?
+    errors[:identifier].nil? && !(new_record? || identifier.blank?)
+  end
+  
+  def issues_with_subprojects(include_subprojects=false)
+    conditions = nil
+    if include_subprojects
+      ids = [id] + child_ids
+      conditions = ["#{Project.table_name}.id IN (#{ids.join(',')}) AND #{Project.visible_by}"]
+    end
+    conditions ||= ["#{Project.table_name}.id = ?", id]
+    # Quick and dirty fix for Rails 2 compatibility
+    Issue.send(:with_scope, :find => { :conditions => conditions }) do 
+      Version.send(:with_scope, :find => { :conditions => conditions }) do
+        yield
+      end
+    end 
+  end
+
+  # returns latest created projects
+  # non public projects will be returned only if user is a member of those
+  def self.latest(user=nil, count=5)
+    find(:all, :limit => count, :conditions => visible_by(user), :order => "created_on DESC")	
+  end	
+
+  def self.visible_by(user=nil)
+    user ||= User.current
+    if user && user.admin?
+      return "#{Project.table_name}.status=#{Project::STATUS_ACTIVE}"
+    elsif user && user.memberships.any?
+      return "#{Project.table_name}.status=#{Project::STATUS_ACTIVE} AND (#{Project.table_name}.is_public = #{connection.quoted_true} or #{Project.table_name}.id IN (#{user.memberships.collect{|m| m.project_id}.join(',')}))"
+    else
+      return "#{Project.table_name}.status=#{Project::STATUS_ACTIVE} AND #{Project.table_name}.is_public = #{connection.quoted_true}"
+    end
+  end
+  
+  def self.allowed_to_condition(user, permission, options={})
+    statements = []
+    base_statement = "#{Project.table_name}.status=#{Project::STATUS_ACTIVE}"
+    if perm = Redmine::AccessControl.permission(permission)
+      unless perm.project_module.nil?
+        # If the permission belongs to a project module, make sure the module is enabled
+        base_statement << " AND EXISTS (SELECT em.id FROM #{EnabledModule.table_name} em WHERE em.name='#{perm.project_module}' AND em.project_id=#{Project.table_name}.id)"
+      end
+    end
+    if options[:project]
+      project_statement = "#{Project.table_name}.id = #{options[:project].id}"
+      project_statement << " OR #{Project.table_name}.parent_id = #{options[:project].id}" if options[:with_subprojects]
+      base_statement = "(#{project_statement}) AND (#{base_statement})"
+    end
+    if user.admin?
+      # no restriction
+    else
+      statements << "1=0"
+      if user.logged?
+        statements << "#{Project.table_name}.is_public = #{connection.quoted_true}" if Role.non_member.allowed_to?(permission)
+        allowed_project_ids = user.memberships.select {|m| m.role.allowed_to?(permission)}.collect {|m| m.project_id}
+        statements << "#{Project.table_name}.id IN (#{allowed_project_ids.join(',')})" if allowed_project_ids.any?
+      elsif Role.anonymous.allowed_to?(permission)
+        # anonymous user allowed on public project
+        statements << "#{Project.table_name}.is_public = #{connection.quoted_true}" 
+      else
+        # anonymous user is not authorized
+      end
+    end
+    statements.empty? ? base_statement : "((#{base_statement}) AND (#{statements.join(' OR ')}))"
+  end
+  
+  def project_condition(with_subprojects)
+    cond = "#{Project.table_name}.id = #{id}"
+    cond = "(#{cond} OR #{Project.table_name}.parent_id = #{id})" if with_subprojects
+    cond
+  end
+  
+  def self.find(*args)
+    if args.first && args.first.is_a?(String) && !args.first.match(/^\d*$/)
+      project = find_by_identifier(*args)
+      raise ActiveRecord::RecordNotFound, "Couldn't find Project with identifier=#{args.first}" if project.nil?
+      project
+    else
+      super
+    end
+  end
+ 
+  def to_param
+    # id is used for projects with a numeric identifier (compatibility)
+    @to_param ||= (identifier.to_s =~ %r{^\d*$} ? id : identifier)
+  end
+  
+  def active?
+    self.status == STATUS_ACTIVE
+  end
+  
+  def archive
+    # Archive subprojects if any
+    children.each do |subproject|
+      subproject.archive
+    end
+    update_attribute :status, STATUS_ARCHIVED
+  end
+  
+  def unarchive
+    return false if parent && !parent.active?
+    update_attribute :status, STATUS_ACTIVE
+  end
+  
+  def active_children
+    children.select {|child| child.active?}
+  end
+  
+  # Returns an array of the trackers used by the project and its sub projects
+  def rolled_up_trackers
+    @rolled_up_trackers ||=
+      Tracker.find(:all, :include => :projects,
+                         :select => "DISTINCT #{Tracker.table_name}.*",
+                         :conditions => ["#{Project.table_name}.id = ? OR #{Project.table_name}.parent_id = ?", id, id],
+                         :order => "#{Tracker.table_name}.position")
+  end
+  
+  # Deletes all project's members
+  def delete_all_members
+    Member.delete_all(['project_id = ?', id])
+  end
+  
+  # Users issues can be assigned to
+  def assignable_users
+    members.select {|m| m.role.assignable?}.collect {|m| m.user}.sort
+  end
+  
+  # Returns the mail adresses of users that should be always notified on project events
+  def recipients
+    members.select {|m| m.mail_notification? || m.user.mail_notification?}.collect {|m| m.user.mail}
+  end
+  
+  # Returns an array of all custom fields enabled for project issues
+  # (explictly associated custom fields and custom fields enabled for all projects)
+  def all_issue_custom_fields
+    @all_issue_custom_fields ||= (IssueCustomField.for_all + issue_custom_fields).uniq.sort
+  end
+  
+  def project
+    self
+  end
+  
+  def <=>(project)
+    name.downcase <=> project.name.downcase
+  end
+  
+  def to_s
+    name
+  end
+  
+  # Returns a short description of the projects (first lines)
+  def short_description(length = 255)
+    description.gsub(/^(.{#{length}}[^\n]*).*$/m, '\1').strip if description
+  end
+  
+  def allows_to?(action)
+    if action.is_a? Hash
+      allowed_actions.include? "#{action[:controller]}/#{action[:action]}"
+    else
+      allowed_permissions.include? action
+    end
+  end
+  
+  def module_enabled?(module_name)
+    module_name = module_name.to_s
+    enabled_modules.detect {|m| m.name == module_name}
+  end
+  
+  def enabled_module_names=(module_names)
+    enabled_modules.clear
+    module_names = [] unless module_names && module_names.is_a?(Array)
+    module_names.each do |name|
+      enabled_modules << EnabledModule.new(:name => name.to_s)
+    end
+  end
+  
+  # Returns an auto-generated project identifier based on the last identifier used
+  def self.next_identifier
+    p = Project.find(:first, :order => 'created_on DESC')
+    p.nil? ? nil : p.identifier.to_s.succ
+  end
+
+protected
+  def validate
+    errors.add(parent_id, " must be a root project") if parent and parent.parent
+    errors.add_to_base("A project with subprojects can't be a subproject") if parent and children.size > 0
+    errors.add(:identifier, :activerecord_error_invalid) if !identifier.blank? && identifier.match(/^\d*$/)
+  end
+  
+private
+  def allowed_permissions
+    @allowed_permissions ||= begin
+      module_names = enabled_modules.collect {|m| m.name}
+      Redmine::AccessControl.modules_permissions(module_names).collect {|p| p.name}
+    end
+  end
+
+  def allowed_actions
+    @actions_allowed ||= allowed_permissions.inject([]) { |actions, permission| actions += Redmine::AccessControl.allowed_actions(permission) }.flatten
+  end
+end

nested_projects/app/models/project_custom_field.rb

@@ -0,0 +1,22 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class ProjectCustomField < CustomField
+  def type_name
+    :label_project_plural
+  end
+end

nested_projects/app/models/query.rb

@@ -0,0 +1,406 @@
+# Redmine - project management software
+# Copyright (C) 2006-2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class QueryColumn  
+  attr_accessor :name, :sortable, :default_order
+  include GLoc
+  
+  def initialize(name, options={})
+    self.name = name
+    self.sortable = options[:sortable]
+    self.default_order = options[:default_order]
+  end
+  
+  def caption
+    set_language_if_valid(User.current.language)
+    l("field_#{name}")
+  end
+end
+
+class QueryCustomFieldColumn < QueryColumn
+
+  def initialize(custom_field)
+    self.name = "cf_#{custom_field.id}".to_sym
+    self.sortable = false
+    @cf = custom_field
+  end
+  
+  def caption
+    @cf.name
+  end
+  
+  def custom_field
+    @cf
+  end
+end
+
+class Query < ActiveRecord::Base
+  belongs_to :project
+  belongs_to :user
+  serialize :filters
+  serialize :column_names
+  
+  attr_protected :project_id, :user_id
+  
+  validates_presence_of :name, :on => :save
+  validates_length_of :name, :maximum => 255
+    
+  @@operators = { "="   => :label_equals, 
+                  "!"   => :label_not_equals,
+                  "o"   => :label_open_issues,
+                  "c"   => :label_closed_issues,
+                  "!*"  => :label_none,
+                  "*"   => :label_all,
+                  ">="   => '>=',
+                  "<="   => '<=',
+                  "<t+" => :label_in_less_than,
+                  ">t+" => :label_in_more_than,
+                  "t+"  => :label_in,
+                  "t"   => :label_today,
+                  "w"   => :label_this_week,
+                  ">t-" => :label_less_than_ago,
+                  "<t-" => :label_more_than_ago,
+                  "t-"  => :label_ago,
+                  "~"   => :label_contains,
+                  "!~"  => :label_not_contains }
+
+  cattr_reader :operators
+    
+  @@operators_by_filter_type = { :list => [ "=", "!" ],
+                                 :list_status => [ "o", "=", "!", "c", "*" ],
+                                 :list_optional => [ "=", "!", "!*", "*" ],
+                                 :list_subprojects => [ "*", "!*", "=" ],
+                                 :date => [ "<t+", ">t+", "t+", "t", "w", ">t-", "<t-", "t-" ],
+                                 :date_past => [ ">t-", "<t-", "t-", "t", "w" ],
+                                 :string => [ "=", "~", "!", "!~" ],
+                                 :text => [  "~", "!~" ],
+                                 :integer => [ "=", ">=", "<=", "!*", "*" ] }
+
+  cattr_reader :operators_by_filter_type
+
+  @@available_columns = [
+    QueryColumn.new(:tracker, :sortable => "#{Tracker.table_name}.position"),
+    QueryColumn.new(:status, :sortable => "#{IssueStatus.table_name}.position"),
+    QueryColumn.new(:priority, :sortable => "#{Enumeration.table_name}.position", :default_order => 'desc'),
+    QueryColumn.new(:subject, :sortable => "#{Issue.table_name}.subject"),
+    QueryColumn.new(:author),
+    QueryColumn.new(:assigned_to, :sortable => "#{User.table_name}.lastname"),
+    QueryColumn.new(:updated_on, :sortable => "#{Issue.table_name}.updated_on", :default_order => 'desc'),
+    QueryColumn.new(:category, :sortable => "#{IssueCategory.table_name}.name"),
+    QueryColumn.new(:fixed_version, :sortable => "#{Version.table_name}.effective_date", :default_order => 'desc'),
+    QueryColumn.new(:start_date, :sortable => "#{Issue.table_name}.start_date"),
+    QueryColumn.new(:due_date, :sortable => "#{Issue.table_name}.due_date"),
+    QueryColumn.new(:estimated_hours, :sortable => "#{Issue.table_name}.estimated_hours"),
+    QueryColumn.new(:done_ratio, :sortable => "#{Issue.table_name}.done_ratio"),
+    QueryColumn.new(:created_on, :sortable => "#{Issue.table_name}.created_on", :default_order => 'desc'),
+  ]
+  cattr_reader :available_columns
+  
+  def initialize(attributes = nil)
+    super attributes
+    self.filters ||= { 'status_id' => {:operator => "o", :values => [""]} }
+    set_language_if_valid(User.current.language)
+  end
+  
+  def after_initialize
+    # Store the fact that project is nil (used in #editable_by?)
+    @is_for_all = project.nil?
+  end
+  
+  def validate
+    filters.each_key do |field|
+      errors.add label_for(field), :activerecord_error_blank unless 
+          # filter requires one or more values
+          (values_for(field) and !values_for(field).first.blank?) or 
+          # filter doesn't require any value
+          ["o", "c", "!*", "*", "t", "w"].include? operator_for(field)
+    end if filters
+  end
+  
+  def editable_by?(user)
+    return false unless user
+    # Admin can edit them all and regular users can edit their private queries
+    return true if user.admin? || (!is_public && self.user_id == user.id)
+    # Members can not edit public queries that are for all project (only admin is allowed to)
+    is_public && !@is_for_all && user.allowed_to?(:manage_public_queries, project)
+  end
+  
+  def available_filters
+    return @available_filters if @available_filters
+    
+    trackers = project.nil? ? Tracker.find(:all, :order => 'position') : project.rolled_up_trackers
+    
+    @available_filters = { "status_id" => { :type => :list_status, :order => 1, :values => IssueStatus.find(:all, :order => 'position').collect{|s| [s.name, s.id.to_s] } },       
+                           "tracker_id" => { :type => :list, :order => 2, :values => trackers.collect{|s| [s.name, s.id.to_s] } },                                                                                                                
+                           "priority_id" => { :type => :list, :order => 3, :values => Enumeration.find(:all, :conditions => ['opt=?','IPRI'], :order => 'position').collect{|s| [s.name, s.id.to_s] } },
+                           "subject" => { :type => :text, :order => 8 },  
+                           "created_on" => { :type => :date_past, :order => 9 },                        
+                           "updated_on" => { :type => :date_past, :order => 10 },
+                           "start_date" => { :type => :date, :order => 11 },
+                           "due_date" => { :type => :date, :order => 12 },
+                           "estimated_hours" => { :type => :integer, :order => 13 },
+                           "done_ratio" =>  { :type => :integer, :order => 14 }}
+    
+    user_values = []
+    user_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
+    if project
+      user_values += project.users.sort.collect{|s| [s.name, s.id.to_s] }
+    else
+      # members of the user's projects
+      user_values += User.current.projects.collect(&:users).flatten.uniq.sort.collect{|s| [s.name, s.id.to_s] }
+    end
+    @available_filters["assigned_to_id"] = { :type => :list_optional, :order => 4, :values => user_values } unless user_values.empty?
+    @available_filters["author_id"] = { :type => :list, :order => 5, :values => user_values } unless user_values.empty?
+  
+    if project
+      # project specific filters
+      unless @project.issue_categories.empty?
+        @available_filters["category_id"] = { :type => :list_optional, :order => 6, :values => @project.issue_categories.collect{|s| [s.name, s.id.to_s] } }
+      end
+      unless @project.versions.empty?
+        @available_filters["fixed_version_id"] = { :type => :list_optional, :order => 7, :values => @project.versions.sort.collect{|s| [s.name, s.id.to_s] } }
+      end
+      unless @project.active_children.empty?
+        @available_filters["subproject_id"] = { :type => :list_subprojects, :order => 13, :values => @project.active_children.collect{|s| [s.name, s.id.to_s] } }
+      end
+      add_custom_fields_filters(@project.all_issue_custom_fields)
+    else
+      # global filters for cross project issue list
+      add_custom_fields_filters(IssueCustomField.find(:all, :conditions => {:is_filter => true, :is_for_all => true}))
+    end
+    @available_filters
+  end
+  
+  def add_filter(field, operator, values)
+    # values must be an array
+    return unless values and values.is_a? Array # and !values.first.empty?
+    # check if field is defined as an available filter
+    if available_filters.has_key? field
+      filter_options = available_filters[field]
+      # check if operator is allowed for that filter
+      #if @@operators_by_filter_type[filter_options[:type]].include? operator
+      #  allowed_values = values & ([""] + (filter_options[:values] || []).collect {|val| val[1]})
+      #  filters[field] = {:operator => operator, :values => allowed_values } if (allowed_values.first and !allowed_values.first.empty?) or ["o", "c", "!*", "*", "t"].include? operator
+      #end
+      filters[field] = {:operator => operator, :values => values }
+    end
+  end
+  
+  def add_short_filter(field, expression)
+    return unless expression
+    parms = expression.scan(/^(o|c|\!|\*)?(.*)$/).first
+    add_filter field, (parms[0] || "="), [parms[1] || ""]
+  end
+  
+  def has_filter?(field)
+    filters and filters[field]
+  end
+  
+  def operator_for(field)
+    has_filter?(field) ? filters[field][:operator] : nil
+  end
+  
+  def values_for(field)
+    has_filter?(field) ? filters[field][:values] : nil
+  end
+  
+  def label_for(field)
+    label = available_filters[field][:name] if available_filters.has_key?(field)
+    label ||= field.gsub(/\_id$/, "")
+  end
+
+  def available_columns
+    return @available_columns if @available_columns
+    @available_columns = Query.available_columns
+    @available_columns += (project ? 
+                            project.all_issue_custom_fields :
+                            IssueCustomField.find(:all, :conditions => {:is_for_all => true})
+                           ).collect {|cf| QueryCustomFieldColumn.new(cf) }      
+  end
+  
+  def columns
+    if has_default_columns?
+      available_columns.select {|c| Setting.issue_list_default_columns.include?(c.name.to_s) }
+    else
+      # preserve the column_names order
+      column_names.collect {|name| available_columns.find {|col| col.name == name}}.compact
+    end
+  end
+  
+  def column_names=(names)
+    names = names.select {|n| n.is_a?(Symbol) || !n.blank? } if names
+    names = names.collect {|n| n.is_a?(Symbol) ? n : n.to_sym } if names
+    write_attribute(:column_names, names)
+  end
+  
+  def has_column?(column)
+    column_names && column_names.include?(column.name)
+  end
+  
+  def has_default_columns?
+    column_names.nil? || column_names.empty?
+  end
+  
+  def project_statement
+    project_clauses = []
+    if project && !@project.active_children.empty?
+      ids = [project.id]
+      if has_filter?("subproject_id")
+        case operator_for("subproject_id")
+        when '='
+          # include the selected subprojects
+          ids += values_for("subproject_id").each(&:to_i)
+        when '!*'
+          # main project only
+        else
+          # all subprojects
+          ids += project.child_ids
+        end
+      elsif Setting.display_subprojects_issues?
+        ids += project.child_ids
+      end
+      project_clauses << "#{Project.table_name}.id IN (%s)" % ids.join(',')
+    elsif project
+      project_clauses << "#{Project.table_name}.id = %d" % project.id
+    end
+    project_clauses <<  Project.allowed_to_condition(User.current, :view_issues)
+    project_clauses.join(' AND ')
+  end
+
+  def statement
+    # filters clauses
+    filters_clauses = []
+    filters.each_key do |field|
+      next if field == "subproject_id"
+      v = values_for(field).clone
+      next unless v and !v.empty?
+            
+      sql = ''
+      is_custom_filter = false
+      if field =~ /^cf_(\d+)$/
+        # custom field
+        db_table = CustomValue.table_name
+        db_field = 'value'
+        is_custom_filter = true
+        sql << "#{Issue.table_name}.id IN (SELECT #{Issue.table_name}.id FROM #{Issue.table_name} LEFT OUTER JOIN #{db_table} ON #{db_table}.customized_type='Issue' AND #{db_table}.customized_id=#{Issue.table_name}.id AND #{db_table}.custom_field_id=#{$1} WHERE "
+      else
+        # regular field
+        db_table = Issue.table_name
+        db_field = field
+        sql << '('
+      end
+      
+      # "me" value subsitution
+      if %w(assigned_to_id author_id).include?(field)
+        v.push(User.current.logged? ? User.current.id.to_s : "0") if v.delete("me")
+      end
+      
+      sql = sql + sql_for_field(field, v, db_table, db_field, is_custom_filter)
+      
+      sql << ')'
+      filters_clauses << sql
+    end if filters and valid?
+    
+    (filters_clauses << project_statement).join(' AND ')
+  end
+  
+  private
+  
+  # Helper method to generate the WHERE sql for a +field+ with a +value+
+  def sql_for_field(field, value, db_table, db_field, is_custom_filter)
+    sql = ''
+    case operator_for field
+    when "="
+      sql = "#{db_table}.#{db_field} IN (" + value.collect{|val| "'#{connection.quote_string(val)}'"}.join(",") + ")"
+    when "!"
+      sql = "(#{db_table}.#{db_field} IS NULL OR #{db_table}.#{db_field} NOT IN (" + value.collect{|val| "'#{connection.quote_string(val)}'"}.join(",") + "))"
+    when "!*"
+      sql = "#{db_table}.#{db_field} IS NULL"
+      sql << " OR #{db_table}.#{db_field} = ''" if is_custom_filter
+    when "*"
+      sql = "#{db_table}.#{db_field} IS NOT NULL"
+      sql << " AND #{db_table}.#{db_field} <> ''" if is_custom_filter
+    when ">="
+      sql = "#{db_table}.#{db_field} >= #{value.first.to_i}"
+    when "<="
+      sql = "#{db_table}.#{db_field} <= #{value.first.to_i}"
+    when "o"
+      sql = "#{IssueStatus.table_name}.is_closed=#{connection.quoted_false}" if field == "status_id"
+    when "c"
+      sql = "#{IssueStatus.table_name}.is_closed=#{connection.quoted_true}" if field == "status_id"
+    when ">t-"
+      sql = date_range_clause(db_table, db_field, - value.first.to_i, 0)
+    when "<t-"
+      sql = date_range_clause(db_table, db_field, nil, - value.first.to_i)
+    when "t-"
+      sql = date_range_clause(db_table, db_field, - value.first.to_i, - value.first.to_i)
+    when ">t+"
+      sql = date_range_clause(db_table, db_field, value.first.to_i, nil)
+    when "<t+"
+      sql = date_range_clause(db_table, db_field, 0, value.first.to_i)
+    when "t+"
+      sql = date_range_clause(db_table, db_field, value.first.to_i, value.first.to_i)
+    when "t"
+      sql = date_range_clause(db_table, db_field, 0, 0)
+    when "w"
+      from = l(:general_first_day_of_week) == '7' ?
+      # week starts on sunday
+      ((Date.today.cwday == 7) ? Time.now.at_beginning_of_day : Time.now.at_beginning_of_week - 1.day) :
+        # week starts on monday (Rails default)
+        Time.now.at_beginning_of_week
+      sql = "#{db_table}.#{db_field} BETWEEN '%s' AND '%s'" % [connection.quoted_date(from), connection.quoted_date(from + 7.days)]
+    when "~"
+      sql = "#{db_table}.#{db_field} LIKE '%#{connection.quote_string(value.first)}%'"
+    when "!~"
+      sql = "#{db_table}.#{db_field} NOT LIKE '%#{connection.quote_string(value.first)}%'"
+    end
+    
+    return sql
+  end
+  
+  def add_custom_fields_filters(custom_fields)
+    @available_filters ||= {}
+    
+    custom_fields.select(&:is_filter?).each do |field|
+      case field.field_format
+      when "text"
+        options = { :type => :text, :order => 20 }
+      when "list"
+        options = { :type => :list_optional, :values => field.possible_values, :order => 20}
+      when "date"
+        options = { :type => :date, :order => 20 }
+      when "bool"
+        options = { :type => :list, :values => [[l(:general_text_yes), "1"], [l(:general_text_no), "0"]], :order => 20 }
+      else
+        options = { :type => :string, :order => 20 }
+      end
+      @available_filters["cf_#{field.id}"] = options.merge({ :name => field.name })
+    end
+  end
+  
+  # Returns a SQL clause for a date or datetime field.
+  def date_range_clause(table, field, from, to)
+    s = []
+    if from
+      s << ("#{table}.#{field} > '%s'" % [connection.quoted_date((Date.yesterday + from).to_time.end_of_day)])
+    end
+    if to
+      s << ("#{table}.#{field} <= '%s'" % [connection.quoted_date((Date.today + to).to_time.end_of_day)])
+    end
+    s.join(' AND ')
+  end
+end

nested_projects/app/models/repository.rb

@@ -0,0 +1,179 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Repository < ActiveRecord::Base
+  belongs_to :project
+  has_many :changesets, :order => "#{Changeset.table_name}.committed_on DESC, #{Changeset.table_name}.id DESC"
+  has_many :changes, :through => :changesets
+  
+  # Raw SQL to delete changesets and changes in the database
+  # has_many :changesets, :dependent => :destroy is too slow for big repositories
+  before_destroy :clear_changesets
+  
+  # Checks if the SCM is enabled when creating a repository
+  validate_on_create { |r| r.errors.add(:type, :activerecord_error_invalid) unless Setting.enabled_scm.include?(r.class.name.demodulize) }
+  
+  # Removes leading and trailing whitespace
+  def url=(arg)
+    write_attribute(:url, arg ? arg.to_s.strip : nil)
+  end
+  
+  # Removes leading and trailing whitespace
+  def root_url=(arg)
+    write_attribute(:root_url, arg ? arg.to_s.strip : nil)
+  end
+
+  def scm
+    @scm ||= self.scm_adapter.new url, root_url, login, password
+    update_attribute(:root_url, @scm.root_url) if root_url.blank?
+    @scm
+  end
+  
+  def scm_name
+    self.class.scm_name
+  end
+  
+  def supports_cat?
+    scm.supports_cat?
+  end
+
+  def supports_annotate?
+    scm.supports_annotate?
+  end
+  
+  def entry(path=nil, identifier=nil)
+    scm.entry(path, identifier)
+  end
+  
+  def entries(path=nil, identifier=nil)
+    scm.entries(path, identifier)
+  end
+  
+  def properties(path, identifier=nil)
+    scm.properties(path, identifier)
+  end
+  
+  def cat(path, identifier=nil)
+    scm.cat(path, identifier)
+  end
+  
+  def diff(path, rev, rev_to)
+    scm.diff(path, rev, rev_to)
+  end
+  
+  # Default behaviour: we search in cached changesets
+  def changesets_for_path(path)
+    path = "/#{path}" unless path.starts_with?('/')
+    Change.find(:all, :include => {:changeset => :user}, 
+      :conditions => ["repository_id = ? AND path = ?", id, path],
+      :order => "committed_on DESC, #{Changeset.table_name}.id DESC").collect(&:changeset)
+  end
+  
+  # Returns a path relative to the url of the repository
+  def relative_path(path)
+    path
+  end
+  
+  def latest_changeset
+    @latest_changeset ||= changesets.find(:first)
+  end
+    
+  def scan_changesets_for_issue_ids
+    self.changesets.each(&:scan_comment_for_issue_ids)
+  end
+  
+  # Returns an array of committers usernames and associated user_id
+  def committers
+    @committers ||= Changeset.connection.select_rows("SELECT DISTINCT committer, user_id FROM #{Changeset.table_name} WHERE repository_id = #{id}")
+  end
+  
+  # Maps committers username to a user ids
+  def committer_ids=(h)
+    if h.is_a?(Hash)
+      committers.each do |committer, user_id|
+        new_user_id = h[committer]
+        if new_user_id && (new_user_id.to_i != user_id.to_i)
+          new_user_id = (new_user_id.to_i > 0 ? new_user_id.to_i : nil)
+          Changeset.update_all("user_id = #{ new_user_id.nil? ? 'NULL' : new_user_id }", ["repository_id = ? AND committer = ?", id, committer])
+        end
+      end
+      @committers = nil
+      true
+    else
+      false
+    end
+  end
+  
+  # Returns the Redmine User corresponding to the given +committer+
+  # It will return nil if the committer is not yet mapped and if no User
+  # with the same username or email was found
+  def find_committer_user(committer)
+    if committer
+      c = changesets.find(:first, :conditions => {:committer => committer}, :include => :user)
+      if c && c.user
+        c.user
+      elsif committer.strip =~ /^([^<]+)(<(.*)>)?$/
+        username, email = $1.strip, $3
+        u = User.find_by_login(username)
+        u ||= User.find_by_mail(email) unless email.blank?
+        u
+      end
+    end
+  end
+  
+  # fetch new changesets for all repositories
+  # can be called periodically by an external script
+  # eg. ruby script/runner "Repository.fetch_changesets"
+  def self.fetch_changesets
+    find(:all).each(&:fetch_changesets)
+  end
+  
+  # scan changeset comments to find related and fixed issues for all repositories
+  def self.scan_changesets_for_issue_ids
+    find(:all).each(&:scan_changesets_for_issue_ids)
+  end
+
+  def self.scm_name
+    'Abstract'
+  end
+  
+  def self.available_scm
+    subclasses.collect {|klass| [klass.scm_name, klass.name]}
+  end
+  
+  def self.factory(klass_name, *args)
+    klass = "Repository::#{klass_name}".constantize
+    klass.new(*args)
+  rescue
+    nil
+  end
+  
+  private
+  
+  def before_save
+    # Strips url and root_url
+    url.strip!
+    root_url.strip!
+    true
+  end
+  
+  def clear_changesets
+    connection.delete("DELETE FROM changes WHERE changes.changeset_id IN (SELECT changesets.id FROM changesets WHERE changesets.repository_id = #{id})")
+    connection.delete("DELETE FROM changesets_issues WHERE changesets_issues.changeset_id IN (SELECT changesets.id FROM changesets WHERE changesets.repository_id = #{id})")
+    connection.delete("DELETE FROM changesets WHERE changesets.repository_id = #{id}")
+  end
+end

nested_projects/app/models/repository/bazaar.rb

@@ -0,0 +1,91 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/bazaar_adapter'
+
+class Repository::Bazaar < Repository
+  attr_protected :root_url
+  validates_presence_of :url
+
+  def scm_adapter
+    Redmine::Scm::Adapters::BazaarAdapter
+  end
+  
+  def self.scm_name
+    'Bazaar'
+  end
+  
+  def entries(path=nil, identifier=nil)
+    entries = scm.entries(path, identifier)
+    if entries
+      entries.each do |e|
+        next if e.lastrev.revision.blank?
+        # Set the filesize unless browsing a specific revision
+        if identifier.nil? && e.is_file?
+          full_path = File.join(root_url, e.path)
+          e.size = File.stat(full_path).size if File.file?(full_path)
+        end
+        c = Change.find(:first,
+                        :include => :changeset,
+                        :conditions => ["#{Change.table_name}.revision = ? and #{Changeset.table_name}.repository_id = ?", e.lastrev.revision, id],
+                        :order => "#{Changeset.table_name}.revision DESC")
+        if c
+          e.lastrev.identifier = c.changeset.revision
+          e.lastrev.name = c.changeset.revision
+          e.lastrev.author = c.changeset.committer
+        end
+      end
+    end
+  end
+  
+  def fetch_changesets
+    scm_info = scm.info
+    if scm_info
+      # latest revision found in database
+      db_revision = latest_changeset ? latest_changeset.revision.to_i : 0
+      # latest revision in the repository
+      scm_revision = scm_info.lastrev.identifier.to_i
+      if db_revision < scm_revision
+        logger.debug "Fetching changesets for repository #{url}" if logger && logger.debug?
+        identifier_from = db_revision + 1
+        while (identifier_from <= scm_revision)
+          # loads changesets by batches of 200
+          identifier_to = [identifier_from + 199, scm_revision].min
+          revisions = scm.revisions('', identifier_to, identifier_from, :with_paths => true)
+          transaction do
+            revisions.reverse_each do |revision|
+              changeset = Changeset.create(:repository => self,
+                                           :revision => revision.identifier, 
+                                           :committer => revision.author, 
+                                           :committed_on => revision.time,
+                                           :scmid => revision.scmid,
+                                           :comments => revision.message)
+              
+              revision.paths.each do |change|
+                Change.create(:changeset => changeset,
+                              :action => change[:action],
+                              :path => change[:path],
+                              :revision => change[:revision])
+              end
+            end
+          end unless revisions.nil?
+          identifier_from = identifier_to + 1
+        end
+      end
+    end
+  end
+end

nested_projects/app/models/repository/cvs.rb

@@ -0,0 +1,161 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/cvs_adapter'
+require 'digest/sha1'
+
+class Repository::Cvs < Repository
+  validates_presence_of :url, :root_url
+
+  def scm_adapter
+    Redmine::Scm::Adapters::CvsAdapter
+  end
+  
+  def self.scm_name
+    'CVS'
+  end
+  
+  def entry(path=nil, identifier=nil)
+    rev = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    scm.entry(path, rev.nil? ? nil : rev.committed_on)
+  end
+  
+  def entries(path=nil, identifier=nil)
+    rev = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    entries = scm.entries(path, rev.nil? ? nil : rev.committed_on)
+    if entries
+      entries.each() do |entry|
+        unless entry.lastrev.nil? || entry.lastrev.identifier
+          change=changes.find_by_revision_and_path( entry.lastrev.revision, scm.with_leading_slash(entry.path) )
+          if change
+            entry.lastrev.identifier=change.changeset.revision
+            entry.lastrev.author=change.changeset.committer
+            entry.lastrev.revision=change.revision
+            entry.lastrev.branch=change.branch
+          end
+        end
+      end
+    end
+    entries
+  end
+  
+  def cat(path, identifier=nil)
+    rev = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    scm.cat(path, rev.nil? ? nil : rev.committed_on)
+  end
+  
+  def diff(path, rev, rev_to)
+    #convert rev to revision. CVS can't handle changesets here
+    diff=[]
+    changeset_from=changesets.find_by_revision(rev)
+    if rev_to.to_i > 0 
+      changeset_to=changesets.find_by_revision(rev_to)
+    end
+    changeset_from.changes.each() do |change_from|
+      
+      revision_from=nil
+      revision_to=nil      
+      
+      revision_from=change_from.revision if path.nil? || (change_from.path.starts_with? scm.with_leading_slash(path))
+      
+      if revision_from
+        if changeset_to
+          changeset_to.changes.each() do |change_to|
+            revision_to=change_to.revision if change_to.path==change_from.path 
+          end
+        end
+        unless revision_to
+          revision_to=scm.get_previous_revision(revision_from)
+        end
+        file_diff = scm.diff(change_from.path, revision_from, revision_to)
+        diff = diff + file_diff unless file_diff.nil?
+      end
+    end
+    return diff
+  end
+  
+  def fetch_changesets
+    # some nifty bits to introduce a commit-id with cvs
+    # natively cvs doesn't provide any kind of changesets, there is only a revision per file.
+    # we now take a guess using the author, the commitlog and the commit-date.
+    
+    # last one is the next step to take. the commit-date is not equal for all 
+    # commits in one changeset. cvs update the commit-date when the *,v file was touched. so
+    # we use a small delta here, to merge all changes belonging to _one_ changeset
+    time_delta=10.seconds
+    
+    fetch_since = latest_changeset ? latest_changeset.committed_on : nil
+    transaction do
+      tmp_rev_num = 1
+      scm.revisions('', fetch_since, nil, :with_paths => true) do |revision|
+        # only add the change to the database, if it doen't exists. the cvs log
+        # is not exclusive at all. 
+        unless changes.find_by_path_and_revision(scm.with_leading_slash(revision.paths[0][:path]), revision.paths[0][:revision])
+          revision
+          cs = changesets.find(:first, :conditions=>{
+            :committed_on=>revision.time-time_delta..revision.time+time_delta,
+            :committer=>revision.author,
+            :comments=>Changeset.normalize_comments(revision.message)
+          })
+        
+          # create a new changeset.... 
+          unless cs
+            # we use a temporaray revision number here (just for inserting)
+            # later on, we calculate a continous positive number
+            latest = changesets.find(:first, :order => 'id DESC')
+            cs = Changeset.create(:repository => self,
+                                  :revision => "_#{tmp_rev_num}", 
+                                  :committer => revision.author, 
+                                  :committed_on => revision.time,
+                                  :comments => revision.message)
+            tmp_rev_num += 1
+          end
+        
+          #convert CVS-File-States to internal Action-abbrevations
+          #default action is (M)odified
+          action="M"
+          if revision.paths[0][:action]=="Exp" && revision.paths[0][:revision]=="1.1"
+            action="A" #add-action always at first revision (= 1.1)
+          elsif revision.paths[0][:action]=="dead"
+            action="D" #dead-state is similar to Delete
+          end
+        
+          Change.create(:changeset => cs,
+          :action => action,
+          :path => scm.with_leading_slash(revision.paths[0][:path]),
+          :revision => revision.paths[0][:revision],
+          :branch => revision.paths[0][:branch]
+          )
+        end
+      end
+      
+      # Renumber new changesets in chronological order
+      changesets.find(:all, :order => 'committed_on ASC, id ASC', :conditions => "revision LIKE '_%'").each do |changeset|
+        changeset.update_attribute :revision, next_revision_number
+      end
+    end # transaction
+  end
+  
+  private
+  
+  # Returns the next revision number to assign to a CVS changeset
+  def next_revision_number
+    # Need to retrieve existing revision numbers to sort them as integers
+    @current_revision_number ||= (connection.select_values("SELECT revision FROM #{Changeset.table_name} WHERE repository_id = #{id} AND revision NOT LIKE '_%'").collect(&:to_i).max || 0)
+    @current_revision_number += 1
+  end
+end

nested_projects/app/models/repository/darcs.rb

@@ -0,0 +1,100 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/darcs_adapter'
+
+class Repository::Darcs < Repository
+  validates_presence_of :url
+
+  def scm_adapter
+    Redmine::Scm::Adapters::DarcsAdapter
+  end
+  
+  def self.scm_name
+    'Darcs'
+  end
+  
+  def entry(path=nil, identifier=nil)
+    patch = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    scm.entry(path, patch.nil? ? nil : patch.scmid)
+  end
+  
+  def entries(path=nil, identifier=nil)
+    patch = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    entries = scm.entries(path, patch.nil? ? nil : patch.scmid)
+    if entries
+      entries.each do |entry|
+        # Search the DB for the entry's last change
+        changeset = changesets.find_by_scmid(entry.lastrev.scmid) if entry.lastrev && !entry.lastrev.scmid.blank?
+        if changeset
+          entry.lastrev.identifier = changeset.revision
+          entry.lastrev.name = changeset.revision
+          entry.lastrev.time = changeset.committed_on
+          entry.lastrev.author = changeset.committer
+        end
+      end
+    end
+    entries
+  end
+  
+  def cat(path, identifier=nil)
+    patch = identifier.nil? ? nil : changesets.find_by_revision(identifier.to_s)
+    scm.cat(path, patch.nil? ? nil : patch.scmid)
+  end
+  
+  def diff(path, rev, rev_to)
+    patch_from = changesets.find_by_revision(rev)
+    return nil if patch_from.nil?
+    patch_to = changesets.find_by_revision(rev_to) if rev_to
+    if path.blank?
+      path = patch_from.changes.collect{|change| change.path}.join(' ')
+    end
+    patch_from ? scm.diff(path, patch_from.scmid, patch_to ? patch_to.scmid : nil) : nil
+  end
+  
+  def fetch_changesets
+    scm_info = scm.info
+    if scm_info
+      db_last_id = latest_changeset ? latest_changeset.scmid : nil
+      next_rev = latest_changeset ? latest_changeset.revision.to_i + 1 : 1      
+      # latest revision in the repository
+      scm_revision = scm_info.lastrev.scmid      
+      unless changesets.find_by_scmid(scm_revision)
+        revisions = scm.revisions('', db_last_id, nil, :with_path => true)
+        transaction do
+          revisions.reverse_each do |revision|
+            changeset = Changeset.create(:repository => self,
+                                         :revision => next_rev,
+                                         :scmid => revision.scmid,
+                                         :committer => revision.author, 
+                                         :committed_on => revision.time,
+                                         :comments => revision.message)
+                                         
+            revision.paths.each do |change|
+              Change.create(:changeset => changeset,
+                            :action => change[:action],
+                            :path => change[:path],
+                            :from_path => change[:from_path],
+                            :from_revision => change[:from_revision])
+            end
+            next_rev += 1
+          end if revisions
+        end
+      end
+    end
+  end
+end

nested_projects/app/models/repository/filesystem.rb

@@ -0,0 +1,43 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# FileSystem adapter
+# File written by Paul Rivier, at Demotera.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/filesystem_adapter'
+
+class Repository::Filesystem < Repository
+  attr_protected :root_url
+  validates_presence_of :url
+
+  def scm_adapter
+    Redmine::Scm::Adapters::FilesystemAdapter
+  end
+  
+  def self.scm_name
+    'Filesystem'
+  end
+  
+  def entries(path=nil, identifier=nil)
+    scm.entries(path, identifier)
+  end
+
+  def fetch_changesets
+    nil
+  end
+  
+end

nested_projects/app/models/repository/git.rb

@@ -0,0 +1,70 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+# Copyright (C) 2007  Patrick Aljord patcito@ŋmail.com
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/git_adapter'
+
+class Repository::Git < Repository
+  attr_protected :root_url
+  validates_presence_of :url
+
+  def scm_adapter
+    Redmine::Scm::Adapters::GitAdapter
+  end
+  
+  def self.scm_name
+    'Git'
+  end
+
+  def changesets_for_path(path)
+    Change.find(:all, :include => {:changeset => :user}, 
+                :conditions => ["repository_id = ? AND path = ?", id, path],
+                :order => "committed_on DESC, #{Changeset.table_name}.revision DESC").collect(&:changeset)
+  end
+
+  def fetch_changesets
+    scm_info = scm.info
+    if scm_info
+      # latest revision found in database
+      db_revision = latest_changeset ? latest_changeset.revision : nil
+      # latest revision in the repository
+      scm_revision = scm_info.lastrev.scmid
+
+      unless changesets.find_by_scmid(scm_revision)
+        scm.revisions('', db_revision, nil, :reverse => true) do |revision|
+          if changesets.find_by_scmid(revision.scmid.to_s).nil?
+            transaction do
+              changeset = Changeset.create!(:repository => self,
+                                           :revision => revision.identifier,
+                                           :scmid => revision.scmid,
+                                           :committer => revision.author, 
+                                           :committed_on => revision.time,
+                                           :comments => revision.message)
+              
+              revision.paths.each do |change|
+                Change.create!(:changeset => changeset,
+                              :action => change[:action],
+                              :path => change[:path],
+                              :from_path => change[:from_path],
+                              :from_revision => change[:from_revision])
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+end

nested_projects/app/models/repository/mercurial.rb

@@ -0,0 +1,94 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/mercurial_adapter'
+
+class Repository::Mercurial < Repository
+  attr_protected :root_url
+  validates_presence_of :url
+
+  def scm_adapter
+    Redmine::Scm::Adapters::MercurialAdapter
+  end
+  
+  def self.scm_name
+    'Mercurial'
+  end
+  
+  def entries(path=nil, identifier=nil)
+    entries=scm.entries(path, identifier)
+    if entries
+      entries.each do |entry|
+        next unless entry.is_file?
+        # Set the filesize unless browsing a specific revision
+        if identifier.nil?
+          full_path = File.join(root_url, entry.path)
+          entry.size = File.stat(full_path).size if File.file?(full_path)
+        end
+        # Search the DB for the entry's last change
+        change = changes.find(:first, :conditions => ["path = ?", scm.with_leading_slash(entry.path)], :order => "#{Changeset.table_name}.committed_on DESC")
+        if change
+          entry.lastrev.identifier = change.changeset.revision
+          entry.lastrev.name = change.changeset.revision
+          entry.lastrev.author = change.changeset.committer
+          entry.lastrev.revision = change.revision
+        end
+      end
+    end
+    entries
+  end
+
+  def fetch_changesets
+    scm_info = scm.info
+    if scm_info
+      # latest revision found in database
+      db_revision = latest_changeset ? latest_changeset.revision.to_i : -1
+      # latest revision in the repository
+      latest_revision = scm_info.lastrev
+      return if latest_revision.nil?
+      scm_revision = latest_revision.identifier.to_i
+      if db_revision < scm_revision
+        logger.debug "Fetching changesets for repository #{url}" if logger && logger.debug?
+        identifier_from = db_revision + 1
+        while (identifier_from <= scm_revision)
+          # loads changesets by batches of 100
+          identifier_to = [identifier_from + 99, scm_revision].min
+          revisions = scm.revisions('', identifier_from, identifier_to, :with_paths => true)
+          transaction do
+            revisions.each do |revision|
+              changeset = Changeset.create(:repository => self,
+                                           :revision => revision.identifier,
+                                           :scmid => revision.scmid,
+                                           :committer => revision.author, 
+                                           :committed_on => revision.time,
+                                           :comments => revision.message)
+              
+              revision.paths.each do |change|
+                Change.create(:changeset => changeset,
+                              :action => change[:action],
+                              :path => change[:path],
+                              :from_path => change[:from_path],
+                              :from_revision => change[:from_revision])
+              end
+            end
+          end unless revisions.nil?
+          identifier_from = identifier_to + 1
+        end
+      end
+    end
+  end
+end

nested_projects/app/models/repository/subversion.rb

@@ -0,0 +1,89 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'redmine/scm/adapters/subversion_adapter'
+
+class Repository::Subversion < Repository
+  attr_protected :root_url
+  validates_presence_of :url
+  validates_format_of :url, :with => /^(http|https|svn|svn\+ssh|file):\/\/.+/i
+
+  def scm_adapter
+    Redmine::Scm::Adapters::SubversionAdapter
+  end
+  
+  def self.scm_name
+    'Subversion'
+  end
+
+  def changesets_for_path(path)
+    revisions = scm.revisions(path)
+    revisions ? changesets.find_all_by_revision(revisions.collect(&:identifier), :order => "committed_on DESC", :include => :user) : []
+  end
+  
+  # Returns a path relative to the url of the repository
+  def relative_path(path)
+    path.gsub(Regexp.new("^\/?#{Regexp.escape(relative_url)}"), '')
+  end
+  
+  def fetch_changesets
+    scm_info = scm.info
+    if scm_info
+      # latest revision found in database
+      db_revision = latest_changeset ? latest_changeset.revision.to_i : 0
+      # latest revision in the repository
+      scm_revision = scm_info.lastrev.identifier.to_i
+      if db_revision < scm_revision
+        logger.debug "Fetching changesets for repository #{url}" if logger && logger.debug?
+        identifier_from = db_revision + 1
+        while (identifier_from <= scm_revision)
+          # loads changesets by batches of 200
+          identifier_to = [identifier_from + 199, scm_revision].min
+          revisions = scm.revisions('', identifier_to, identifier_from, :with_paths => true)
+          transaction do
+            revisions.reverse_each do |revision|
+              changeset = Changeset.create(:repository => self,
+                                           :revision => revision.identifier, 
+                                           :committer => revision.author, 
+                                           :committed_on => revision.time,
+                                           :comments => revision.message)
+              
+              revision.paths.each do |change|
+                Change.create(:changeset => changeset,
+                              :action => change[:action],
+                              :path => change[:path],
+                              :from_path => change[:from_path],
+                              :from_revision => change[:from_revision])
+              end
+            end
+          end unless revisions.nil?
+          identifier_from = identifier_to + 1
+        end
+      end
+    end
+  end
+  
+  private
+  
+  # Returns the relative url of the repository
+  # Eg: root_url = file:///var/svn/foo
+  #     url      = file:///var/svn/foo/bar
+  #     => returns /bar
+  def relative_url
+    @relative_url ||= url.gsub(Regexp.new("^#{Regexp.escape(root_url)}"), '')
+  end
+end

nested_projects/app/models/role.rb

@@ -0,0 +1,147 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Role < ActiveRecord::Base
+  # Built-in roles
+  BUILTIN_NON_MEMBER = 1
+  BUILTIN_ANONYMOUS  = 2
+
+  named_scope :builtin, lambda { |*args|
+    compare = 'not' if args.first == true
+    { :conditions => "#{compare} builtin = 0" }
+  }
+  
+  before_destroy :check_deletable
+  has_many :workflows, :dependent => :delete_all do
+    def copy(role)
+      raise "Can not copy workflow from a #{role.class}" unless role.is_a?(Role)
+      raise "Can not copy workflow from/to an unsaved role" if proxy_owner.new_record? || role.new_record?
+      clear
+      connection.insert "INSERT INTO workflows (tracker_id, old_status_id, new_status_id, role_id)" +
+                        " SELECT tracker_id, old_status_id, new_status_id, #{proxy_owner.id}" +
+                        " FROM workflows" +
+                        " WHERE role_id = #{role.id}"
+    end
+  end
+  
+  has_many :members
+  acts_as_list
+  
+  serialize :permissions, Array
+  attr_protected :builtin
+
+  validates_presence_of :name
+  validates_uniqueness_of :name
+  validates_length_of :name, :maximum => 30
+  validates_format_of :name, :with => /^[\w\s\'\-]*$/i
+
+  def permissions
+    read_attribute(:permissions) || []
+  end
+  
+  def permissions=(perms)
+    perms = perms.collect {|p| p.to_sym unless p.blank? }.compact.uniq if perms
+    write_attribute(:permissions, perms)
+  end
+
+  def add_permission!(*perms)
+    self.permissions = [] unless permissions.is_a?(Array)
+
+    permissions_will_change!
+    perms.each do |p|
+      p = p.to_sym
+      permissions << p unless permissions.include?(p)
+    end
+    save!
+  end
+
+  def remove_permission!(*perms)
+    return unless permissions.is_a?(Array)
+    permissions_will_change!
+    perms.each { |p| permissions.delete(p.to_sym) }
+    save!
+  end
+  
+  # Returns true if the role has the given permission
+  def has_permission?(perm)
+    !permissions.nil? && permissions.include?(perm.to_sym)
+  end
+  
+  def <=>(role)
+    position <=> role.position
+  end
+  
+  # Return true if the role is a builtin role
+  def builtin?
+    self.builtin != 0
+  end
+  
+  # Return true if the role is a project member role
+  def member?
+    !self.builtin?
+  end
+  
+  # Return true if role is allowed to do the specified action
+  # action can be:
+  # * a parameter-like Hash (eg. :controller => 'projects', :action => 'edit')
+  # * a permission Symbol (eg. :edit_project)
+  def allowed_to?(action)
+    if action.is_a? Hash
+      allowed_actions.include? "#{action[:controller]}/#{action[:action]}"
+    else
+      allowed_permissions.include? action
+    end
+  end
+  
+  # Return all the permissions that can be given to the role
+  def setable_permissions
+    setable_permissions = Redmine::AccessControl.permissions - Redmine::AccessControl.public_permissions
+    setable_permissions -= Redmine::AccessControl.members_only_permissions if self.builtin == BUILTIN_NON_MEMBER
+    setable_permissions -= Redmine::AccessControl.loggedin_only_permissions if self.builtin == BUILTIN_ANONYMOUS
+    setable_permissions
+  end
+
+  # Find all the roles that can be given to a project member
+  def self.find_all_givable
+    find(:all, :conditions => {:builtin => 0}, :order => 'position')
+  end
+
+  # Return the builtin 'non member' role
+  def self.non_member
+    find(:first, :conditions => {:builtin => BUILTIN_NON_MEMBER}) || raise('Missing non-member builtin role.')
+  end
+
+  # Return the builtin 'anonymous' role 
+  def self.anonymous
+    find(:first, :conditions => {:builtin => BUILTIN_ANONYMOUS}) || raise('Missing anonymous builtin role.')
+  end
+
+  
+private
+  def allowed_permissions
+    @allowed_permissions ||= permissions + Redmine::AccessControl.public_permissions.collect {|p| p.name}
+  end
+
+  def allowed_actions
+    @actions_allowed ||= allowed_permissions.inject([]) { |actions, permission| actions += Redmine::AccessControl.allowed_actions(permission) }.flatten
+  end
+    
+  def check_deletable
+    raise "Can't delete role" if members.any?
+    raise "Can't delete builtin role" if builtin?
+  end
+end

nested_projects/app/models/setting.rb

@@ -0,0 +1,164 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Setting < ActiveRecord::Base
+
+  DATE_FORMATS = [
+	'%Y-%m-%d',
+	'%d/%m/%Y',
+	'%d.%m.%Y',
+	'%d-%m-%Y',
+	'%m/%d/%Y',
+	'%d %b %Y',
+	'%d %B %Y',
+	'%b %d, %Y',
+	'%B %d, %Y'
+    ]
+    
+  TIME_FORMATS = [
+    '%H:%M',
+    '%I:%M %p'
+    ]
+    
+  ENCODINGS = %w(US-ASCII
+                  windows-1250
+                  windows-1251
+                  windows-1252
+                  windows-1253
+                  windows-1254
+                  windows-1255
+                  windows-1256
+                  windows-1257
+                  windows-1258
+                  windows-31j
+                  ISO-2022-JP
+                  ISO-2022-KR
+                  ISO-8859-1
+                  ISO-8859-2
+                  ISO-8859-3
+                  ISO-8859-4
+                  ISO-8859-5
+                  ISO-8859-6
+                  ISO-8859-7
+                  ISO-8859-8
+                  ISO-8859-9
+                  ISO-8859-13
+                  ISO-8859-15
+                  KOI8-R
+                  UTF-8
+                  UTF-16
+                  UTF-16BE
+                  UTF-16LE
+                  EUC-JP
+                  Shift_JIS
+                  GB18030
+                  GBK
+                  ISCII91
+                  EUC-KR
+                  Big5
+                  Big5-HKSCS
+                  TIS-620)
+  
+  cattr_accessor :available_settings
+  @@available_settings = YAML::load(File.open("#{RAILS_ROOT}/config/settings.yml"))
+  Redmine::Plugin.all.each do |plugin|
+    next unless plugin.settings
+    @@available_settings["plugin_#{plugin.id}"] = {'default' => plugin.settings[:default], 'serialized' => true}    
+  end
+  
+  validates_uniqueness_of :name
+  validates_inclusion_of :name, :in => @@available_settings.keys
+  validates_numericality_of :value, :only_integer => true, :if => Proc.new { |setting| @@available_settings[setting.name]['format'] == 'int' }  
+
+  # Hash used to cache setting values
+  @cached_settings = {}
+  @cached_cleared_on = Time.now
+  
+  def value
+    v = read_attribute(:value)
+    # Unserialize serialized settings
+    v = YAML::load(v) if @@available_settings[name]['serialized'] && v.is_a?(String)
+    v = v.to_sym if @@available_settings[name]['format'] == 'symbol' && !v.blank?
+    v
+  end
+  
+  def value=(v)
+    v = v.to_yaml if v && @@available_settings[name]['serialized']
+    write_attribute(:value, v.to_s)
+  end
+  
+  # Returns the value of the setting named name
+  def self.[](name)
+    v = @cached_settings[name]
+    v ? v : (@cached_settings[name] = find_or_default(name).value)
+  end
+  
+  def self.[]=(name, v)
+    setting = find_or_default(name)
+    setting.value = (v ? v : "")
+    @cached_settings[name] = nil
+    setting.save
+    setting.value
+  end
+  
+  # Defines getter and setter for each setting
+  # Then setting values can be read using: Setting.some_setting_name
+  # or set using Setting.some_setting_name = "some value"
+  @@available_settings.each do |name, params|
+    src = <<-END_SRC
+    def self.#{name}
+      self[:#{name}]
+    end
+
+    def self.#{name}?
+      self[:#{name}].to_i > 0
+    end
+
+    def self.#{name}=(value)
+      self[:#{name}] = value
+    end
+    END_SRC
+    class_eval src, __FILE__, __LINE__
+  end
+  
+  # Helper that returns an array based on per_page_options setting
+  def self.per_page_options_array
+    per_page_options.split(%r{[\s,]}).collect(&:to_i).select {|n| n > 0}.sort
+  end
+  
+  # Checks if settings have changed since the values were read
+  # and clears the cache hash if it's the case
+  # Called once per request
+  def self.check_cache
+    settings_updated_on = Setting.maximum(:updated_on)
+    if settings_updated_on && @cached_cleared_on <= settings_updated_on
+      @cached_settings.clear
+      @cached_cleared_on = Time.now
+      logger.info "Settings cache cleared." if logger
+    end
+  end
+  
+private
+  # Returns the Setting instance for the setting named name
+  # (record found in database or new record with default value)
+  def self.find_or_default(name)
+    name = name.to_s
+    raise "There's no setting named #{name}" unless @@available_settings.has_key?(name)    
+    setting = find_by_name(name)
+    setting ||= new(:name => name, :value => @@available_settings[name]['default']) if @@available_settings.has_key? name
+  end
+end

nested_projects/app/models/time_entry.rb

@@ -0,0 +1,79 @@
+# redMine - project management software
+# Copyright (C) 2006-2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class TimeEntry < ActiveRecord::Base
+  # could have used polymorphic association
+  # project association here allows easy loading of time entries at project level with one database trip
+  belongs_to :project
+  belongs_to :issue
+  belongs_to :user
+  belongs_to :activity, :class_name => 'Enumeration', :foreign_key => :activity_id
+  
+  attr_protected :project_id, :user_id, :tyear, :tmonth, :tweek
+
+  acts_as_customizable
+  acts_as_event :title => Proc.new {|o| "#{o.user}: #{lwr(:label_f_hour, o.hours)} (#{(o.issue || o.project).event_title})"},
+                :url => Proc.new {|o| {:controller => 'timelog', :action => 'details', :project_id => o.project}},
+                :author => :user,
+                :description => :comments
+  
+  validates_presence_of :user_id, :activity_id, :project_id, :hours, :spent_on
+  validates_numericality_of :hours, :allow_nil => true
+  validates_length_of :comments, :maximum => 255, :allow_nil => true
+
+  def after_initialize
+    if new_record? && self.activity.nil?
+      if default_activity = Enumeration.default('ACTI')
+        self.activity_id = default_activity.id
+      end
+    end
+  end
+  
+  def before_validation
+    self.project = issue.project if issue && project.nil?
+  end
+  
+  def validate
+    errors.add :hours, :activerecord_error_invalid if hours && (hours < 0 || hours >= 1000)
+    errors.add :project_id, :activerecord_error_invalid if project.nil?
+    errors.add :issue_id, :activerecord_error_invalid if (issue_id && !issue) || (issue && project!=issue.project)
+  end
+  
+  def hours=(h)
+    write_attribute :hours, (h.is_a?(String) ? h.to_hours : h)
+  end
+  
+  # tyear, tmonth, tweek assigned where setting spent_on attributes
+  # these attributes make time aggregations easier
+  def spent_on=(date)
+    super
+    self.tyear = spent_on ? spent_on.year : nil
+    self.tmonth = spent_on ? spent_on.month : nil
+    self.tweek = spent_on ? Date.civil(spent_on.year, spent_on.month, spent_on.day).cweek : nil
+  end
+  
+  # Returns true if the time entry can be edited by usr, otherwise false
+  def editable_by?(usr)
+    (usr == user && usr.allowed_to?(:edit_own_time_entries, project)) || usr.allowed_to?(:edit_time_entries, project)
+  end
+  
+  def self.visible_by(usr)
+    with_scope(:find => { :conditions => Project.allowed_to_condition(usr, :view_time_entries) }) do
+      yield
+    end
+  end
+end

nested_projects/app/models/time_entry_custom_field.rb

@@ -0,0 +1,23 @@
+# redMine - project management software
+# Copyright (C) 2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class TimeEntryCustomField < CustomField
+  def type_name
+    :label_spent_time
+  end
+end
+

nested_projects/app/models/token.rb

@@ -0,0 +1,44 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Token < ActiveRecord::Base
+  belongs_to :user
+  
+  @@validity_time = 1.day
+  
+  def before_create
+    self.value = Token.generate_token_value
+  end
+
+  # Return true if token has expired  
+  def expired?
+    return Time.now > self.created_on + @@validity_time
+  end
+  
+  # Delete all expired tokens
+  def self.destroy_expired
+    Token.delete_all ["action <> 'feeds' AND created_on < ?", Time.now - @@validity_time]
+  end
+  
+private
+  def self.generate_token_value
+    chars = ("a".."z").to_a + ("A".."Z").to_a + ("0".."9").to_a
+    token_value = ''
+    40.times { |i| token_value << chars[rand(chars.size-1)] }
+    token_value
+  end
+end

nested_projects/app/models/tracker.rb

@@ -0,0 +1,56 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Tracker < ActiveRecord::Base
+  before_destroy :check_integrity  
+  has_many :issues
+  has_many :workflows, :dependent => :delete_all do
+    def copy(tracker)
+      raise "Can not copy workflow from a #{tracker.class}" unless tracker.is_a?(Tracker)
+      raise "Can not copy workflow from/to an unsaved tracker" if proxy_owner.new_record? || tracker.new_record?
+      clear
+      connection.insert "INSERT INTO workflows (tracker_id, old_status_id, new_status_id, role_id)" +
+                        " SELECT #{proxy_owner.id}, old_status_id, new_status_id, role_id" +
+                        " FROM workflows" +
+                        " WHERE tracker_id = #{tracker.id}"
+    end
+  end
+  
+  has_and_belongs_to_many :projects
+  has_and_belongs_to_many :custom_fields, :class_name => 'IssueCustomField', :join_table => "#{table_name_prefix}custom_fields_trackers#{table_name_suffix}", :association_foreign_key => 'custom_field_id'
+  acts_as_list
+
+  validates_presence_of :name
+  validates_uniqueness_of :name
+  validates_length_of :name, :maximum => 30
+  validates_format_of :name, :with => /^[\w\s\'\-]*$/i
+
+  def to_s; name end
+  
+  def <=>(tracker)
+    name <=> tracker.name
+  end
+
+  def self.all
+    find(:all, :order => 'position')
+  end
+  
+private
+  def check_integrity
+    raise "Can't delete tracker" if Issue.find(:first, :conditions => ["tracker_id=?", self.id])
+  end
+end

nested_projects/app/models/user.rb

@@ -0,0 +1,294 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require "digest/sha1"
+
+class User < ActiveRecord::Base
+
+  # Account statuses
+  STATUS_ANONYMOUS  = 0
+  STATUS_ACTIVE     = 1
+  STATUS_REGISTERED = 2
+  STATUS_LOCKED     = 3
+  
+  USER_FORMATS = {
+    :firstname_lastname => '#{firstname} #{lastname}',
+    :firstname => '#{firstname}',
+    :lastname_firstname => '#{lastname} #{firstname}',
+    :lastname_coma_firstname => '#{lastname}, #{firstname}',
+    :username => '#{login}'
+  }
+
+  has_many :memberships, :class_name => 'Member', :include => [ :project, :role ], :conditions => "#{Project.table_name}.status=#{Project::STATUS_ACTIVE}", :order => "#{Project.table_name}.name"
+  has_many :members, :dependent => :delete_all
+  has_many :projects, :through => :memberships
+  has_many :issue_categories, :foreign_key => 'assigned_to_id', :dependent => :nullify
+  has_many :changesets, :dependent => :nullify
+  has_one :preference, :dependent => :destroy, :class_name => 'UserPreference'
+  has_one :rss_token, :dependent => :destroy, :class_name => 'Token', :conditions => "action='feeds'"
+  belongs_to :auth_source
+  
+  # Active non-anonymous users scope
+  named_scope :active, :conditions => "#{User.table_name}.status = #{STATUS_ACTIVE}"
+  
+  acts_as_customizable
+  
+  attr_accessor :password, :password_confirmation
+  attr_accessor :last_before_login_on
+  # Prevents unauthorized assignments
+  attr_protected :login, :admin, :password, :password_confirmation, :hashed_password
+	
+  validates_presence_of :login, :firstname, :lastname, :mail, :if => Proc.new { |user| !user.is_a?(AnonymousUser) }
+  validates_uniqueness_of :login, :if => Proc.new { |user| !user.login.blank? }
+  validates_uniqueness_of :mail, :if => Proc.new { |user| !user.mail.blank? }
+  # Login must contain lettres, numbers, underscores only
+  validates_format_of :login, :with => /^[a-z0-9_\-@\.]*$/i
+  validates_length_of :login, :maximum => 30
+  validates_format_of :firstname, :lastname, :with => /^[\w\s\'\-\.]*$/i
+  validates_length_of :firstname, :lastname, :maximum => 30
+  validates_format_of :mail, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :allow_nil => true
+  validates_length_of :mail, :maximum => 60, :allow_nil => true
+  validates_length_of :password, :minimum => 4, :allow_nil => true
+  validates_confirmation_of :password, :allow_nil => true
+
+  def before_create
+    self.mail_notification = false
+    true
+  end
+  
+  def before_save
+    # update hashed_password if password was set
+    self.hashed_password = User.hash_password(self.password) if self.password
+  end
+  
+  def reload(*args)
+    @name = nil
+    super
+  end
+  
+  # Returns the user that matches provided login and password, or nil
+  def self.try_to_login(login, password)
+    # Make sure no one can sign in with an empty password
+    return nil if password.to_s.empty?
+    user = find(:first, :conditions => ["login=?", login])
+    if user
+      # user is already in local database
+      return nil if !user.active?
+      if user.auth_source
+        # user has an external authentication method
+        return nil unless user.auth_source.authenticate(login, password)
+      else
+        # authentication with local password
+        return nil unless User.hash_password(password) == user.hashed_password        
+      end
+    else
+      # user is not yet registered, try to authenticate with available sources
+      attrs = AuthSource.authenticate(login, password)
+      if attrs
+        user = new(*attrs)
+        user.login = login
+        user.language = Setting.default_language
+        if user.save
+          user.reload
+          logger.info("User '#{user.login}' created from the LDAP") if logger
+        end
+      end
+    end    
+    user.update_attribute(:last_login_on, Time.now) if user && !user.new_record?
+    user
+  rescue => text
+    raise text
+  end
+	
+  # Return user's full name for display
+  def name(formatter = nil)
+    if formatter
+      eval('"' + (USER_FORMATS[formatter] || USER_FORMATS[:firstname_lastname]) + '"')
+    else
+      @name ||= eval('"' + (USER_FORMATS[Setting.user_format] || USER_FORMATS[:firstname_lastname]) + '"')
+    end
+  end
+  
+  def active?
+    self.status == STATUS_ACTIVE
+  end
+
+  def registered?
+    self.status == STATUS_REGISTERED
+  end
+    
+  def locked?
+    self.status == STATUS_LOCKED
+  end
+
+  def check_password?(clear_password)
+    User.hash_password(clear_password) == self.hashed_password
+  end
+  
+  def pref
+    self.preference ||= UserPreference.new(:user => self)
+  end
+  
+  def time_zone
+    @time_zone ||= (self.pref.time_zone.blank? ? nil : ActiveSupport::TimeZone[self.pref.time_zone])
+  end
+  
+  def wants_comments_in_reverse_order?
+    self.pref[:comments_sorting] == 'desc'
+  end
+  
+  # Return user's RSS key (a 40 chars long string), used to access feeds
+  def rss_key
+    token = self.rss_token || Token.create(:user => self, :action => 'feeds')
+    token.value
+  end
+  
+  # Return an array of project ids for which the user has explicitly turned mail notifications on
+  def notified_projects_ids
+    @notified_projects_ids ||= memberships.select {|m| m.mail_notification?}.collect(&:project_id)
+  end
+  
+  def notified_project_ids=(ids)
+    Member.update_all("mail_notification = #{connection.quoted_false}", ['user_id = ?', id])
+    Member.update_all("mail_notification = #{connection.quoted_true}", ['user_id = ? AND project_id IN (?)', id, ids]) if ids && !ids.empty?
+    @notified_projects_ids = nil
+    notified_projects_ids
+  end
+  
+  def self.find_by_rss_key(key)
+    token = Token.find_by_value(key)
+    token && token.user.active? ? token.user : nil
+  end
+  
+  def self.find_by_autologin_key(key)
+    token = Token.find_by_action_and_value('autologin', key)
+    token && (token.created_on > Setting.autologin.to_i.day.ago) && token.user.active? ? token.user : nil
+  end
+  
+  # Makes find_by_mail case-insensitive
+  def self.find_by_mail(mail)
+    find(:first, :conditions => ["LOWER(mail) = ?", mail.to_s.downcase])
+  end
+
+  # Sort users by their display names
+  def <=>(user)
+    self.to_s.downcase <=> user.to_s.downcase
+  end
+  
+  def to_s
+    name
+  end
+  
+  def logged?
+    true
+  end
+  
+  def anonymous?
+    !logged?
+  end
+  
+  # Return user's role for project
+  def role_for_project(project)
+    # No role on archived projects
+    return nil unless project && project.active?
+    if logged?
+      # Find project membership
+      membership = memberships.detect {|m| m.project_id == project.id}
+      if membership
+        membership.role
+      else
+        @role_non_member ||= Role.non_member
+      end
+    else
+      @role_anonymous ||= Role.anonymous
+    end
+  end
+  
+  # Return true if the user is a member of project
+  def member_of?(project)
+    role_for_project(project).member?
+  end
+  
+  # Return true if the user is allowed to do the specified action on project
+  # action can be:
+  # * a parameter-like Hash (eg. :controller => 'projects', :action => 'edit')
+  # * a permission Symbol (eg. :edit_project)
+  def allowed_to?(action, project, options={})
+    if project
+      # No action allowed on archived projects
+      return false unless project.active?
+      # No action allowed on disabled modules
+      return false unless project.allows_to?(action)
+      # Admin users are authorized for anything else
+      return true if admin?
+      
+      role = role_for_project(project)
+      return false unless role
+      role.allowed_to?(action) && (project.is_public? || role.member?)
+      
+    elsif options[:global]
+      # authorize if user has at least one role that has this permission
+      roles = memberships.collect {|m| m.role}.uniq
+      roles.detect {|r| r.allowed_to?(action)} || (self.logged? ? Role.non_member.allowed_to?(action) : Role.anonymous.allowed_to?(action))
+    else
+      false
+    end
+  end
+  
+  def self.current=(user)
+    @current_user = user
+  end
+  
+  def self.current
+    @current_user ||= User.anonymous
+  end
+  
+  def self.anonymous
+    anonymous_user = AnonymousUser.find(:first)
+    if anonymous_user.nil?
+      anonymous_user = AnonymousUser.create(:lastname => 'Anonymous', :firstname => '', :mail => '', :login => '', :status => 0)
+      raise 'Unable to create the anonymous user.' if anonymous_user.new_record?
+    end
+    anonymous_user
+  end
+  
+private
+  # Return password digest
+  def self.hash_password(clear_password)
+    Digest::SHA1.hexdigest(clear_password || "")
+  end
+end
+
+class AnonymousUser < User
+  
+  def validate_on_create
+    # There should be only one AnonymousUser in the database
+    errors.add_to_base 'An anonymous user already exists.' if AnonymousUser.find(:first)
+  end
+  
+  def available_custom_fields
+    []
+  end
+  
+  # Overrides a few properties
+  def logged?; false end
+  def admin; false end
+  def name; 'Anonymous' end
+  def mail; nil end
+  def time_zone; nil end
+  def rss_key; nil end
+end

nested_projects/app/models/user_custom_field.rb

@@ -0,0 +1,23 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class UserCustomField < CustomField
+  def type_name
+    :label_user_plural
+  end
+end
+

nested_projects/app/models/user_preference.rb

@@ -0,0 +1,54 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class UserPreference < ActiveRecord::Base
+  belongs_to :user
+  serialize :others
+  
+  attr_protected :others
+  
+  def initialize(attributes = nil)
+    super
+    self.others ||= {}
+  end
+  
+  def before_save
+    self.others ||= {}
+  end
+  
+  def [](attr_name)
+    if attribute_present? attr_name
+      super
+    else
+      others ? others[attr_name] : nil
+    end
+  end
+  
+  def []=(attr_name, value)
+    if attribute_present? attr_name
+      super
+    else
+      h = read_attribute(:others).dup || {}
+      h.update(attr_name => value)
+      write_attribute(:others, h)
+      value
+    end
+  end
+  
+  def comments_sorting; self[:comments_sorting] end
+  def comments_sorting=(order); self[:comments_sorting]=order end
+end

nested_projects/app/models/version.rb

@@ -0,0 +1,107 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Version < ActiveRecord::Base
+  before_destroy :check_integrity
+  belongs_to :project
+  has_many :fixed_issues, :class_name => 'Issue', :foreign_key => 'fixed_version_id'
+  acts_as_attachable :view_permission => :view_files,
+                     :delete_permission => :manage_files
+
+  validates_presence_of :name
+  validates_uniqueness_of :name, :scope => [:project_id]
+  validates_length_of :name, :maximum => 60
+  validates_format_of :effective_date, :with => /^\d{4}-\d{2}-\d{2}$/, :message => 'activerecord_error_not_a_date', :allow_nil => true
+  
+  def start_date
+    effective_date
+  end
+  
+  def due_date
+    effective_date
+  end
+  
+  # Returns the total estimated time for this version
+  def estimated_hours
+    @estimated_hours ||= fixed_issues.sum(:estimated_hours).to_f
+  end
+  
+  # Returns the total reported time for this version
+  def spent_hours
+    @spent_hours ||= TimeEntry.sum(:hours, :include => :issue, :conditions => ["#{Issue.table_name}.fixed_version_id = ?", id]).to_f
+  end
+  
+  # Returns true if the version is completed: due date reached and no open issues
+  def completed?
+    effective_date && (effective_date <= Date.today) && (open_issues_count == 0)
+  end
+  
+  def completed_pourcent
+    if fixed_issues.count == 0
+      0
+    elsif open_issues_count == 0
+      100
+    else
+      (closed_issues_count * 100 + Issue.sum('done_ratio', :include => 'status', :conditions => ["fixed_version_id = ? AND is_closed = ?", id, false]).to_f) / fixed_issues.count
+    end
+  end
+  
+  def closed_pourcent
+    if fixed_issues.count == 0
+      0
+    else
+      closed_issues_count * 100.0 / fixed_issues.count
+    end
+  end
+  
+  # Returns true if the version is overdue: due date reached and some open issues
+  def overdue?
+    effective_date && (effective_date < Date.today) && (open_issues_count > 0)
+  end
+  
+  def open_issues_count
+    @open_issues_count ||= Issue.count(:all, :conditions => ["fixed_version_id = ? AND is_closed = ?", self.id, false], :include => :status)
+  end
+
+  def closed_issues_count
+    @closed_issues_count ||= Issue.count(:all, :conditions => ["fixed_version_id = ? AND is_closed = ?", self.id, true], :include => :status)
+  end
+  
+  def wiki_page
+    if project.wiki && !wiki_page_title.blank?
+      @wiki_page ||= project.wiki.find_page(wiki_page_title)
+    end
+    @wiki_page
+  end
+  
+  def to_s; name end
+  
+  # Versions are sorted by effective_date and name
+  # Those with no effective_date are at the end, sorted by name
+  def <=>(version)
+    if self.effective_date
+      version.effective_date ? (self.effective_date == version.effective_date ? self.name <=> version.name : self.effective_date <=> version.effective_date) : -1
+    else
+      version.effective_date ? 1 : (self.name <=> version.name)
+    end
+  end
+  
+private
+  def check_integrity
+    raise "Can't delete version" if self.fixed_issues.find(:first)
+  end
+end

nested_projects/app/models/watcher.rb

@@ -0,0 +1,30 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Watcher < ActiveRecord::Base
+  belongs_to :watchable, :polymorphic => true
+  belongs_to :user
+  
+  validates_presence_of :user
+  validates_uniqueness_of :user_id, :scope => [:watchable_type, :watchable_id]
+  
+  protected
+  
+  def validate
+    errors.add :user_id, :activerecord_error_invalid unless user.nil? || user.active?
+  end
+end

nested_projects/app/models/wiki.rb

@@ -0,0 +1,73 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Wiki < ActiveRecord::Base
+  belongs_to :project
+  has_many :pages, :class_name => 'WikiPage', :dependent => :destroy, :order => 'title'
+  has_many :redirects, :class_name => 'WikiRedirect', :dependent => :delete_all
+  
+  validates_presence_of :start_page
+  validates_format_of :start_page, :with => /^[^,\.\/\?\;\|\:]*$/
+  
+  # find the page with the given title
+  # if page doesn't exist, return a new page
+  def find_or_new_page(title)
+    title = start_page if title.blank?
+    find_page(title) || WikiPage.new(:wiki => self, :title => Wiki.titleize(title))
+  end
+  
+  # find the page with the given title
+  def find_page(title, options = {})
+    title = start_page if title.blank?
+    title = Wiki.titleize(title)
+    page = pages.find_by_title(title)
+    if !page && !(options[:with_redirect] == false)
+      # search for a redirect
+      redirect = redirects.find_by_title(title)
+      page = find_page(redirect.redirects_to, :with_redirect => false) if redirect
+    end
+    page
+  end
+  
+  # Finds a page by title
+  # The given string can be of one of the forms: "title" or "project:title"
+  # Examples:
+  #   Wiki.find_page("bar", project => foo)
+  #   Wiki.find_page("foo:bar")
+  def self.find_page(title, options = {})
+    project = options[:project]
+    if title.to_s =~ %r{^([^\:]+)\:(.*)$}
+      project_identifier, title = $1, $2
+      project = Project.find_by_identifier(project_identifier) || Project.find_by_name(project_identifier)
+    end
+    if project && project.wiki
+      page = project.wiki.find_page(title)
+      if page && page.content
+        page
+      end
+    end
+  end
+  
+  # turn a string into a valid page title
+  def self.titleize(title)
+    # replace spaces with _ and remove unwanted caracters
+    title = title.gsub(/\s+/, '_').delete(',./?;|:') if title
+    # upcase the first letter
+    title = (title.slice(0..0).upcase + (title.slice(1..-1) || '')) if title
+    title
+  end  
+end

nested_projects/app/models/wiki_content.rb

@@ -0,0 +1,90 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'zlib'
+
+class WikiContent < ActiveRecord::Base
+  set_locking_column :version
+  belongs_to :page, :class_name => 'WikiPage', :foreign_key => 'page_id'
+  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
+  validates_presence_of :text
+  
+  acts_as_versioned
+  class Version
+    belongs_to :page, :class_name => '::WikiPage', :foreign_key => 'page_id'
+    belongs_to :author, :class_name => '::User', :foreign_key => 'author_id'
+    attr_protected :data
+
+    acts_as_event :title => Proc.new {|o| "#{l(:label_wiki_edit)}: #{o.page.title} (##{o.version})"},
+                  :description => :comments,
+                  :datetime => :updated_on,
+                  :type => 'wiki-page',
+                  :url => Proc.new {|o| {:controller => 'wiki', :id => o.page.wiki.project_id, :page => o.page.title, :version => o.version}}
+
+    acts_as_activity_provider :type => 'wiki_edits',
+                              :timestamp => "#{WikiContent.versioned_table_name}.updated_on",
+                              :author_key => "#{WikiContent.versioned_table_name}.author_id",
+                              :permission => :view_wiki_edits,
+                              :find_options => {:select => "#{WikiContent.versioned_table_name}.updated_on, #{WikiContent.versioned_table_name}.comments, " +
+                                                           "#{WikiContent.versioned_table_name}.#{WikiContent.version_column}, #{WikiPage.table_name}.title, " +
+                                                           "#{WikiContent.versioned_table_name}.page_id, #{WikiContent.versioned_table_name}.author_id, " +
+                                                           "#{WikiContent.versioned_table_name}.id",
+                                                :joins => "LEFT JOIN #{WikiPage.table_name} ON #{WikiPage.table_name}.id = #{WikiContent.versioned_table_name}.page_id " +
+                                                          "LEFT JOIN #{Wiki.table_name} ON #{Wiki.table_name}.id = #{WikiPage.table_name}.wiki_id " +
+                                                          "LEFT JOIN #{Project.table_name} ON #{Project.table_name}.id = #{Wiki.table_name}.project_id"}
+
+    def text=(plain)
+      case Setting.wiki_compression
+      when 'gzip'
+      begin
+        self.data = Zlib::Deflate.deflate(plain, Zlib::BEST_COMPRESSION)
+        self.compression = 'gzip'
+      rescue
+        self.data = plain
+        self.compression = ''
+      end
+      else
+        self.data = plain
+        self.compression = ''
+      end
+      plain
+    end
+    
+    def text
+      @text ||= case compression
+      when 'gzip'
+         Zlib::Inflate.inflate(data)
+      else
+        # uncompressed data
+        data
+      end      
+    end
+    
+    def project
+      page.project
+    end
+    
+    # Returns the previous version or nil
+    def previous
+      @previous ||= WikiContent::Version.find(:first, 
+                                              :order => 'version DESC',
+                                              :include => :author,
+                                              :conditions => ["wiki_content_id = ? AND version < ?", wiki_content_id, version])
+    end
+  end
+  
+end

nested_projects/app/models/wiki_page.rb

@@ -0,0 +1,188 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'diff'
+require 'enumerator'
+
+class WikiPage < ActiveRecord::Base
+  belongs_to :wiki
+  has_one :content, :class_name => 'WikiContent', :foreign_key => 'page_id', :dependent => :destroy
+  acts_as_attachable :delete_permission => :delete_wiki_pages_attachments
+  acts_as_tree :order => 'title'
+  
+  acts_as_event :title => Proc.new {|o| "#{l(:label_wiki)}: #{o.title}"},
+                :description => :text,
+                :datetime => :created_on,
+                :url => Proc.new {|o| {:controller => 'wiki', :id => o.wiki.project_id, :page => o.title}}
+
+  acts_as_searchable :columns => ['title', 'text'],
+                     :include => [{:wiki => :project}, :content],
+                     :project_key => "#{Wiki.table_name}.project_id"
+
+  attr_accessor :redirect_existing_links
+  
+  validates_presence_of :title
+  validates_format_of :title, :with => /^[^,\.\/\?\;\|\s]*$/
+  validates_uniqueness_of :title, :scope => :wiki_id, :case_sensitive => false
+  validates_associated :content
+
+  def title=(value)
+    value = Wiki.titleize(value)
+    @previous_title = read_attribute(:title) if @previous_title.blank?
+    write_attribute(:title, value)
+  end
+
+  def before_save
+    self.title = Wiki.titleize(title)    
+    # Manage redirects if the title has changed
+    if !@previous_title.blank? && (@previous_title != title) && !new_record?
+      # Update redirects that point to the old title
+      wiki.redirects.find_all_by_redirects_to(@previous_title).each do |r|
+        r.redirects_to = title
+        r.title == r.redirects_to ? r.destroy : r.save
+      end
+      # Remove redirects for the new title
+      wiki.redirects.find_all_by_title(title).each(&:destroy)
+      # Create a redirect to the new title
+      wiki.redirects << WikiRedirect.new(:title => @previous_title, :redirects_to => title) unless redirect_existing_links == "0"
+      @previous_title = nil
+    end
+  end
+  
+  def before_destroy
+    # Remove redirects to this page
+    wiki.redirects.find_all_by_redirects_to(title).each(&:destroy)
+  end
+  
+  def pretty_title
+    WikiPage.pretty_title(title)
+  end
+  
+  def content_for_version(version=nil)
+    result = content.versions.find_by_version(version.to_i) if version
+    result ||= content
+    result
+  end
+  
+  def diff(version_to=nil, version_from=nil)
+    version_to = version_to ? version_to.to_i : self.content.version
+    version_from = version_from ? version_from.to_i : version_to - 1
+    version_to, version_from = version_from, version_to unless version_from < version_to
+    
+    content_to = content.versions.find_by_version(version_to)
+    content_from = content.versions.find_by_version(version_from)
+    
+    (content_to && content_from) ? WikiDiff.new(content_to, content_from) : nil
+  end
+  
+  def annotate(version=nil)
+    version = version ? version.to_i : self.content.version
+    c = content.versions.find_by_version(version)
+    c ? WikiAnnotate.new(c) : nil
+  end
+  
+  def self.pretty_title(str)
+    (str && str.is_a?(String)) ? str.tr('_', ' ') : str
+  end
+  
+  def project
+    wiki.project
+  end
+  
+  def text
+    content.text if content
+  end
+  
+  # Returns true if usr is allowed to edit the page, otherwise false
+  def editable_by?(usr)
+    !protected? || usr.allowed_to?(:protect_wiki_pages, wiki.project)
+  end
+        
+  def attachments_deletable?(usr=User.current)
+    editable_by?(usr) && super(usr)
+  end
+  
+  def parent_title
+    @parent_title || (self.parent && self.parent.pretty_title)
+  end
+  
+  def parent_title=(t)
+    @parent_title = t
+    parent_page = t.blank? ? nil : self.wiki.find_page(t)
+    self.parent = parent_page
+  end
+  
+  protected
+  
+  def validate
+    errors.add(:parent_title, :activerecord_error_invalid) if !@parent_title.blank? && parent.nil?
+    errors.add(:parent_title, :activerecord_error_circular_dependency) if parent && (parent == self || parent.ancestors.include?(self))
+    errors.add(:parent_title, :activerecord_error_not_same_project) if parent && (parent.wiki_id != wiki_id)
+  end
+end
+
+class WikiDiff
+  attr_reader :diff, :words, :content_to, :content_from
+  
+  def initialize(content_to, content_from)
+    @content_to = content_to
+    @content_from = content_from
+    @words = content_to.text.split(/(\s+)/)
+    @words = @words.select {|word| word != ' '}
+    words_from = content_from.text.split(/(\s+)/)
+    words_from = words_from.select {|word| word != ' '}    
+    @diff = words_from.diff @words
+  end
+end
+
+class WikiAnnotate
+  attr_reader :lines, :content
+  
+  def initialize(content)
+    @content = content
+    current = content
+    current_lines = current.text.split(/\r?\n/)
+    @lines = current_lines.collect {|t| [nil, nil, t]}
+    positions = []
+    current_lines.size.times {|i| positions << i}
+    while (current.previous)
+      d = current.previous.text.split(/\r?\n/).diff(current.text.split(/\r?\n/)).diffs.flatten
+      d.each_slice(3) do |s|
+        sign, line = s[0], s[1]
+        if sign == '+' && positions[line] && positions[line] != -1
+          if @lines[positions[line]][0].nil?
+            @lines[positions[line]][0] = current.version
+            @lines[positions[line]][1] = current.author
+          end
+        end
+      end
+      d.each_slice(3) do |s|
+        sign, line = s[0], s[1]
+        if sign == '-'
+          positions.insert(line, -1)
+        else
+          positions[line] = nil
+        end
+      end
+      positions.compact!
+      # Stop if every line is annotated
+      break unless @lines.detect { |line| line[0].nil? }
+      current = current.previous
+    end
+    @lines.each { |line| line[0] ||= current.version }
+  end
+end

nested_projects/app/models/wiki_redirect.rb

@@ -0,0 +1,23 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class WikiRedirect < ActiveRecord::Base
+  belongs_to :wiki
+  
+  validates_presence_of :title, :redirects_to
+  validates_length_of :title, :redirects_to, :maximum => 255
+end

nested_projects/app/models/workflow.rb

@@ -0,0 +1,43 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Workflow < ActiveRecord::Base
+  belongs_to :role
+  belongs_to :old_status, :class_name => 'IssueStatus', :foreign_key => 'old_status_id'
+  belongs_to :new_status, :class_name => 'IssueStatus', :foreign_key => 'new_status_id'
+
+  validates_presence_of :role, :old_status, :new_status
+  
+  # Returns workflow transitions count by tracker and role
+  def self.count_by_tracker_and_role
+    counts = connection.select_all("SELECT role_id, tracker_id, count(id) AS c FROM #{Workflow.table_name} GROUP BY role_id, tracker_id")
+    roles = Role.find(:all, :order => 'builtin, position')
+    trackers = Tracker.find(:all, :order => 'position')
+    
+    result = []
+    trackers.each do |tracker|
+      t = []
+      roles.each do |role|
+        row = counts.detect {|c| c['role_id'] == role.id.to_s && c['tracker_id'] == tracker.id.to_s}
+        t << [role, (row.nil? ? 0 : row['c'].to_i)]
+      end
+      result << [tracker, t]
+    end
+    
+    result
+  end
+end