Redmine 3.4.4

lib/redmine/core_ext/date/calculations.rb

@@ -0,0 +1,35 @@
+# Redmine - project management software
+# Copyright (C) 2006-2017  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.
+
+module Redmine #:nodoc:
+  module CoreExtensions #:nodoc:
+    module Date #:nodoc:
+      # Custom date calculations
+      module Calculations
+        # Returns difference with specified date in months
+        def months_ago(date = self.class.today)
+          (date.year - self.year)*12 + (date.month - self.month)
+        end
+
+        # Returns difference with specified date in weeks
+        def weeks_ago(date = self.class.today)
+          (date.year - self.year)*52 + (date.cweek - self.cweek)
+        end
+      end
+    end
+  end
+end