magic-removal: Removed _pre_save(), _post_save(), _pre_delete() and _post_delete() hooks. Just subclass the save() and delete() methods now.

git-svn-id: http://code.djangoproject.com/svn/django/branches/magic-removal@2038 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/base.py

@@ -118,7 +118,7 @@ class Model(object):
 
     def _prepare(cls):
         # Creates some methods once self._meta has been populated.
-        opts =  cls._meta
+        opts = cls._meta
         opts._prepare(cls)
 
         if opts.order_with_respect_to:
@@ -137,9 +137,6 @@ class Model(object):
     _prepare = classmethod(_prepare)
 
     def save(self):
-        # Run any pre-save hooks.
-        if hasattr(self, '_pre_save'):
-            self._pre_save()
         dispatcher.send(signal=signals.pre_save, sender=self.__class__, instance=self)
 
         non_pks = [f for f in self._meta.fields if not f.primary_key]
@@ -187,9 +184,6 @@ class Model(object):
         # Run any post-save hooks.
         dispatcher.send(signal=signals.pre_save, sender=self.__class__, instance=self)
 
-        if hasattr(self, '_post_save'):
-            self._post_save()
-
     save.alters_data = True
 
     def __get_pk_val(self):
@@ -240,9 +234,6 @@ class Model(object):
 
                 # Run any pre-delete hooks.
                 if do_delete:
-                    if hasattr(instance, '_pre_delete'):
-                        instance._pre_delete()
-
                     dispatcher.send(signal=signals.pre_delete, sender=cls, instance=instance)
 
                     for related in cls._meta.get_all_related_many_to_many_objects():
@@ -276,9 +267,6 @@ class Model(object):
 
                     dispatcher.send(signal=signals.post_delete, sender=cls, instance=instance)
 
-                    if hasattr(instance, '_post_delete'):
-                        instance._post_delete()
-
         connection.commit()
 
     delete.alters_data = True

docs/model-api.txt

@@ -1022,25 +1022,6 @@ A few object methods have special meaning:
     It's good practice to use ``get_absolute_url()`` in templates, instead of
     hard-coding your objects' URLs.
 
-``_pre_save``
-    This method is called just before an object is saved to the database. For
-    example, you can use it to calculate aggregate values from other fields
-    before the object is saved.
-
-    See `Adding hooks before/after saving and deleting`_ for a full example.
-
-    .. _Adding hooks before/after saving and deleting: http://www.djangoproject.com/documentation/models/save_delete_hooks/
-
-``_post_save``
-    This method is called just after the object is saved to the database. This
-    could be used to update other tables, update cached information, etc.
-
-``_pre_delete``
-    Like ``_pre_save``, but for deletion.
-
-``_post_delete``
-    Like ``_post_save``, but for deletion.
-
 Module-level methods
 --------------------