Fixed #3557 -- Made `SlugField` inherit from `CharField` so that its…

Fixed #3557 -- Made `SlugField` inherit from `CharField` so that its `max_length` is properly set.  Removed `get_manipulator_field_objs` method since it's already provided by `CharField`.  Thanks, Russell Cloran.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6065 bcc190cf-cafb-0310-a4f2-bffc1f526a37

AUTHORS

@@ -79,6 +79,7 @@ answer newbie questions, and generally made Django that much better:
     Bryan Chow <bryan at verdjn dot com>
     Michal Chruszcz <troll@pld-linux.org>
     Ian Clelland <clelland@gmail.com>
+    Russell Cloran <russell@rucus.net>
     colin@owlfish.com
     crankycoder@gmail.com
     Pete Crosier <pete.crosier@gmail.com>

django/db/models/fields/__init__.py

@@ -906,17 +906,14 @@ class PositiveSmallIntegerField(IntegerField):
     def get_manipulator_field_objs(self):
         return [oldforms.PositiveSmallIntegerField]
 
-class SlugField(Field):
+class SlugField(CharField):
     def __init__(self, *args, **kwargs):
         kwargs['max_length'] = kwargs.get('max_length', 50)
         kwargs.setdefault('validator_list', []).append(validators.isSlug)
         # Set db_index=True unless it's been set manually.
         if 'db_index' not in kwargs:
             kwargs['db_index'] = True
-        Field.__init__(self, *args, **kwargs)
-
-    def get_manipulator_field_objs(self):
-        return [oldforms.TextField]
+        super(SlugField, self).__init__(*args, **kwargs)
 
 class SmallIntegerField(IntegerField):
     def get_manipulator_field_objs(self):