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- # Redmine - project management software
- # Copyright (C) 2006-2012 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
- include Redmine::SubclassFactory
-
- default_scope :order => "#{Enumeration.table_name}.position ASC"
-
- belongs_to :project
-
- acts_as_list :scope => 'type = \'#{type}\''
- acts_as_customizable
- acts_as_tree :order => 'position ASC'
-
- before_destroy :check_integrity
- before_save :check_default
-
- attr_protected :type
-
- validates_presence_of :name
- validates_uniqueness_of :name, :scope => [:type, :project_id]
- validates_length_of :name, :maximum => 30
-
- scope :shared, :conditions => { :project_id => nil }
- scope :active, :conditions => { :active => true }
- scope :named, lambda {|arg| { :conditions => ["LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip]}}
-
- def self.default
- # Creates a fake default scope so Enumeration.default will check
- # it's type. STI subclasses will automatically add their own
- # types to the finder.
- if self.descends_from_active_record?
- find(:first, :conditions => { :is_default => true, :type => 'Enumeration' })
- else
- # STI classes are
- find(:first, :conditions => { :is_default => true })
- end
- end
-
- # Overloaded on concrete classes
- def option_name
- nil
- end
-
- def check_default
- if is_default? && is_default_changed?
- Enumeration.update_all("is_default = #{connection.quoted_false}", {:type => type})
- end
- end
-
- # Overloaded on concrete classes
- def objects_count
- 0
- end
-
- def in_use?
- self.objects_count != 0
- end
-
- # Is this enumeration overiding a system level enumeration?
- def is_override?
- !self.parent.nil?
- 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)
- self.transfer_relations(reassign_to)
- end
- destroy_without_reassign
- end
-
- def <=>(enumeration)
- position <=> enumeration.position
- end
-
- def to_s; name end
-
- # Returns the Subclasses of Enumeration. Each Subclass needs to be
- # required in development mode.
- #
- # Note: subclasses is protected in ActiveRecord
- def self.get_subclasses
- subclasses
- end
-
- # Does the +new+ Hash override the previous Enumeration?
- def self.overridding_change?(new, previous)
- if (same_active_state?(new['active'], previous.active)) && same_custom_values?(new,previous)
- return false
- else
- return true
- end
- end
-
- # Does the +new+ Hash have the same custom values as the previous Enumeration?
- def self.same_custom_values?(new, previous)
- previous.custom_field_values.each do |custom_value|
- if custom_value.value != new["custom_field_values"][custom_value.custom_field_id.to_s]
- return false
- end
- end
-
- return true
- end
-
- # Are the new and previous fields equal?
- def self.same_active_state?(new, previous)
- new = (new == "1" ? true : false)
- return new == previous
- end
-
- private
- def check_integrity
- raise "Can't delete enumeration" if self.in_use?
- end
-
- end
-
- # Force load the subclasses in development mode
- require_dependency 'time_entry_activity'
- require_dependency 'document_category'
- require_dependency 'issue_priority'
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