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/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