|
|
# 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
|
|
|
|
