changed version check to Rails constant as AR VERSION not loaded by

default
changed time component validation to use dummy date parts to avoid pre
epoch issues

lib/validates_timeliness/date_helper.rb

@@ -0,0 +1,46 @@
+# This module intercepts the date and time select helpers to allow the 
+# attribute value before type cast to be used as in the select helpers.
+# This means that an invalid date or time will be redisplayed rather than the
+# implicitly converted value which occurs by default with Rails.
+module ValidatesTimeliness
+  module DateHelper
+    
+    class InstanceTag      
+      TimelinessDateTime = Struct.new(:year, :day, :month, :hour, :min, :sec)      
+            
+      def to_date_select_tag_with_timeliness(options = {}, html_options = {})
+        @timeliness_date_or_time_tag = true
+        date_or_time_select_without_timeliness(options.merge(:discard_hour => true), html_options)
+      end
+      alias_method_chain :to_date_select_tag, :timeliness
+
+      def to_time_select_tag_with_timeliness(options = {}, html_options = {})
+        @timeliness_date_or_time_tag = true
+        date_or_time_select_without_timeliness(options.merge(:discard_year => true, :discard_month => true), html_options)
+      end
+      alias_method_chain :to_time_select_tag, :timeliness
+
+      def to_datetime_select_tag_with_timeliness(options = {}, html_options = {})
+        @timeliness_date_or_time_tag = true
+        date_or_time_select_without_timeliness(options, html_options)
+      end
+      alias_method_chain :to_date_select_tag, :timeliness
+    
+      def value_with_timeliness(object)
+        return value_without_timeliness(object) unless @timeliness_date_or_time_tag
+        
+        raw_value = value_before_type_case(object)
+        
+        if raw_value.acts_as?(:time) || raw_value.is_a?(Date)
+          return value_without_timeliness(object)
+        end
+        
+        time_array = ParseDate.parsedate(raw_value)
+        
+        TimelinessDateTime.new(time_array)        
+      end      
+      alias_method_chain :value, :timeliness
+      
+    end   
+  end
+end