diff vendor/plugins/acts_as_customizable/lib/acts_as_customizable.rb @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/plugins/acts_as_customizable/lib/acts_as_customizable.rb	Fri Jul 23 15:52:44 2010 +0100
@@ -0,0 +1,92 @@
+# 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.
+
+module Redmine
+  module Acts
+    module Customizable
+      def self.included(base)
+        base.extend ClassMethods
+      end
+
+      module ClassMethods
+        def acts_as_customizable(options = {})
+          return if self.included_modules.include?(Redmine::Acts::Customizable::InstanceMethods)
+          cattr_accessor :customizable_options
+          self.customizable_options = options
+          has_many :custom_values, :as => :customized,
+                                   :include => :custom_field,
+                                   :order => "#{CustomField.table_name}.position",
+                                   :dependent => :delete_all
+          before_validation_on_create { |customized| customized.custom_field_values }
+          # Trigger validation only if custom values were changed
+          validates_associated :custom_values, :on => :update, :if => Proc.new { |customized| customized.custom_field_values_changed? }
+          send :include, Redmine::Acts::Customizable::InstanceMethods
+          # Save custom values when saving the customized object
+          after_save :save_custom_field_values
+        end
+      end
+
+      module InstanceMethods
+        def self.included(base)
+          base.extend ClassMethods
+        end
+        
+        def available_custom_fields
+          CustomField.find(:all, :conditions => "type = '#{self.class.name}CustomField'",
+                                 :order => 'position')
+        end
+        
+        def custom_field_values=(values)
+          @custom_field_values_changed = true
+          values = values.stringify_keys
+          custom_field_values.each do |custom_value|
+            custom_value.value = values[custom_value.custom_field_id.to_s] if values.has_key?(custom_value.custom_field_id.to_s)
+          end if values.is_a?(Hash)
+        end
+        
+        def custom_field_values
+          @custom_field_values ||= available_custom_fields.collect { |x| custom_values.detect { |v| v.custom_field == x } || custom_values.build(:custom_field => x, :value => nil) }
+        end
+        
+        def custom_field_values_changed?
+          @custom_field_values_changed == true
+        end
+        
+        def custom_value_for(c)
+          field_id = (c.is_a?(CustomField) ? c.id : c.to_i)
+          custom_values.detect {|v| v.custom_field_id == field_id }
+        end
+        
+        def save_custom_field_values
+          custom_field_values.each(&:save)
+          @custom_field_values_changed = false
+          @custom_field_values = nil
+        end
+        
+        def reset_custom_values!
+          @custom_field_values = nil
+          @custom_field_values_changed = true
+          values = custom_values.inject({}) {|h,v| h[v.custom_field_id] = v.value; h}
+          custom_values.each {|cv| cv.destroy unless custom_field_values.include?(cv)}
+        end
+        
+        module ClassMethods
+        end
+      end
+    end
+  end
+end