1  # Redmine - project management software
   2  # Copyright (C) 2006-2011  Jean-Philippe Lang
   3  #
   4  # This program is free software; you can redistribute it and/or
   5  # modify it under the terms of the GNU General Public License
   6  # as published by the Free Software Foundation; either version 2
   7  # of the License, or (at your option) any later version.
   8  #
   9  # This program is distributed in the hope that it will be useful,
  10  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  # GNU General Public License for more details.
  13  #
  14  # You should have received a copy of the GNU General Public License
  15  # along with this program; if not, write to the Free Software
  16  # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17 
  18  class MemberRole < ActiveRecord::Base
  19    belongs_to :member
  20    belongs_to :role
  21 
  22    after_destroy :remove_member_if_empty
  23 
  24    after_create :add_role_to_group_users
  25    after_destroy :remove_role_from_group_users
  26 
  27    validates_presence_of :role
  28    validate :validate_role_member
  29 
  30    def validate_role_member
  31      errors.add :role_id, :invalid if role && !role.member?
  32    end
  33 
  34    def inherited?
  35      !inherited_from.nil?
  36    end
  37 
  38    private
  39 
  40    def remove_member_if_empty
  41      if member.roles.empty?
  42        member.destroy
  43      end
  44    end
  45 
  46    def add_role_to_group_users
  47      if member.principal.is_a?(Group)
  48        member.principal.users.each do |user|
  49          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)
  50          user_member.member_roles << MemberRole.new(:role => role, :inherited_from => id)
  51          user_member.save!
  52        end
  53      end
  54    end
  55 
  56    def remove_role_from_group_users
  57      MemberRole.find(:all, :conditions => { :inherited_from => id }).group_by(&:member).each do |member, member_roles|
  58        member_roles.each(&:destroy)
  59        if member && member.user
  60          Watcher.prune(:user => member.user, :project => member.project)
  61        end
  62      end
  63    end
  64  end