Ticket #7801: date_time_metaclass.diff

django/db/models/fields/__init__.py

@@ -528 +528 @@
         return [oldforms.CommaSeparatedIntegerField]
 
 class DateField(Field):
+    from django.db.models.fields.subclassing import SubfieldBase
+    __metaclass__ = SubfieldBase
+
     empty_strings_allowed = False
     def __init__(self, verbose_name=None, name=None, auto_now=False, auto_now_add=False, **kwargs):
         self.auto_now, self.auto_now_add = auto_now, auto_now_add
@@ -1081 +1084 @@
         return super(TextField, self).formfield(**defaults)
 
 class TimeField(Field):
+    from django.db.models.fields.subclassing import SubfieldBase
+    __metaclass__ = SubfieldBase
+
     empty_strings_allowed = False
     def __init__(self, verbose_name=None, name=None, auto_now=False, auto_now_add=False, **kwargs):
         self.auto_now, self.auto_now_add = auto_now, auto_now_add