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/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