Chris@909: # Redmine - project management software
Chris@909: # Copyright (C) 2006-2011  Jean-Philippe Lang
Chris@909: #
Chris@909: # This program is free software; you can redistribute it and/or
Chris@909: # modify it under the terms of the GNU General Public License
Chris@909: # as published by the Free Software Foundation; either version 2
Chris@909: # of the License, or (at your option) any later version.
Chris@909: #
Chris@909: # This program is distributed in the hope that it will be useful,
Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@909: # GNU General Public License for more details.
Chris@909: #
Chris@909: # You should have received a copy of the GNU General Public License
Chris@909: # along with this program; if not, write to the Free Software
Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@909: 
Chris@909: class MemberRole < ActiveRecord::Base
Chris@909:   belongs_to :member
Chris@909:   belongs_to :role
Chris@909: 
Chris@909:   after_destroy :remove_member_if_empty
Chris@909: 
Chris@909:   after_create :add_role_to_group_users
Chris@909:   after_destroy :remove_role_from_group_users
Chris@909: 
Chris@909:   validates_presence_of :role
Chris@909: 
Chris@909:   def validate
Chris@909:     errors.add :role_id, :invalid if role && !role.member?
Chris@909:   end
Chris@909: 
Chris@909:   def inherited?
Chris@909:     !inherited_from.nil?
Chris@909:   end
Chris@909: 
Chris@909:   private
Chris@909: 
Chris@909:   def remove_member_if_empty
Chris@909:     if member.roles.empty?
Chris@909:       member.destroy
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   def add_role_to_group_users
Chris@909:     if member.principal.is_a?(Group)
Chris@909:       member.principal.users.each do |user|
Chris@909:         user_member = Member.find_by_project_id_and_user_id(member.project_id, user.id) || Member.new(:project_id => member.project_id, :user_id => user.id)
Chris@909:         user_member.member_roles << MemberRole.new(:role => role, :inherited_from => id)
Chris@909:         user_member.save!
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   def remove_role_from_group_users
Chris@909:     MemberRole.find(:all, :conditions => { :inherited_from => id }).group_by(&:member).each do |member, member_roles|
Chris@909:       member_roles.each(&:destroy)
Chris@909:       if member && member.user
Chris@909:         Watcher.prune(:user => member.user, :project => member.project)
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: end