Chris@1115: # Redmine - project management software
Chris@1115: # Copyright (C) 2006-2012  Jean-Philippe Lang
Chris@1115: #
Chris@1115: # This program is free software; you can redistribute it and/or
Chris@1115: # modify it under the terms of the GNU General Public License
Chris@1115: # as published by the Free Software Foundation; either version 2
Chris@1115: # of the License, or (at your option) any later version.
Chris@1115: #
Chris@1115: # This program is distributed in the hope that it will be useful,
Chris@1115: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@1115: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@1115: # GNU General Public License for more details.
Chris@1115: #
Chris@1115: # You should have received a copy of the GNU General Public License
Chris@1115: # along with this program; if not, write to the Free Software
Chris@1115: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@1115: 
Chris@1115: module Redmine #:nodoc:
Chris@1115:   module CoreExtensions #:nodoc:
Chris@1115:     module Date #:nodoc:
Chris@1115:       # Custom date calculations
Chris@1115:       module Calculations
Chris@1115:         # Returns difference with specified date in months
Chris@1115:         def months_ago(date = self.class.today)
Chris@1115:           (date.year - self.year)*12 + (date.month - self.month)
Chris@1115:         end
Chris@1115: 
Chris@1115:         # Returns difference with specified date in weeks
Chris@1115:         def weeks_ago(date = self.class.today)
Chris@1115:           (date.year - self.year)*52 + (date.cweek - self.cweek)
Chris@1115:         end
Chris@1115:       end
Chris@1115:     end
Chris@1115:   end
Chris@1115: end