estimancy/projestimate

#encoding: utf-8
#############################################################################
#
# ProjEstimate, Open Source project estimation web application
# Copyright (c) 2013 Spirula (http://www.spirula.fr)
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#############################################################################

class ModuleProjectObserver < ActiveRecord::Observer
  observe ModuleProject

  def before_destroy(module_project)
    attr_prj_ids = EstimationValue.find_all_by_module_project_id(module_project.id).map(&:id).join(",")
    unless attr_prj_ids.blank?
      EstimationValue.delete_all("id IN (#{attr_prj_ids})")
    end
  end

end