0
@@ -179,10 +179,10 @@
0
         def define_write_method_for_time_zone_conversion(attr_name)
0
           method_body = <<-EOV
0
             def #{attr_name}=(time)
0
-              if time
0
-                time = Time.zone.parse(time) rescue time unless time.acts_like?(:time)
0
-                time = time.in_time_zone if time.acts_like?(:time)
0
+              unless time.blank? || time.acts_like?(:time)
0
+                time = time.is_a?(String) ? Time.zone.parse(time) : time.to_time rescue time
0
               end
0
+              time = time.in_time_zone rescue nil if time
0
               write_attribute(:#{attr_name}, time)
0
             end
0
           EOV

0
@@ -186,6 +186,14 @@
0
       end
0
     end
0
   end
0
+  
0
+  def test_setting_time_zone_aware_attribute_to_blank_string_returns_nil
0
+    in_time_zone "Pacific Time (US & Canada)" do
0
+      record   = @target.new
0
+      record.written_on = ' '
0
+      assert_nil record.written_on
0
+    end
0
+  end
0
 
0
   def test_setting_time_zone_aware_attribute_interprets_time_zone_unaware_string_in_time_zone
0
     time_string = 'Tue Jan 01 00:00:00 2008'