Changeset 397 for ruby/trunk/lib/open_ehr/assumed_library_types.rb

Timestamp:

Jan 19, 2010, 8:54:57 PM (14 years ago)

Author:

KOBAYASHI, Shinji

Message:

refs #71

File:

• ruby/trunk/lib/open_ehr/assumed_library_types.rb (modified) (2 diffs)

ruby/trunk/lib/open_ehr/assumed_library_types.rb

@@ -135 +135 @@
 
     module ISO8601DateModule
+      include Comparable
       attr_reader :year, :month, :day
 
@@ -180 +181 @@
         month_unknown? or day_unknown?
       end
-
+      
+      def <=>(other)
+        (@year*TimeDefinitions::NOMINAL_DAYS_IN_YEAR +
+         @month*TimeDefinitions::NOMINAL_DAYS_IN_MONTH + @day) <=>
+          (other.year*TimeDefinitions::NOMINAL_DAYS_IN_YEAR +
+           other.month*TimeDefinitions::NOMINAL_DAYS_IN_MONTH + other.month)
+      end
       protected
       def leapyear?(year)