1 files changed, 22 insertions, 4 deletions
diff --git a/docs/api-guide/generic-views.md b/docs/api-guide/generic-views.md
index 24fc0bc7..83c3e45f 100755
--- a/docs/api-guide/generic-views.md
+++ b/docs/api-guide/generic-views.md
@@ -121,11 +121,27 @@ For example:
 
 Note that if your API doesn't include any object level permissions, you may optionally exclude the ``self.check_object_permissions, and simply return the object from the `get_object_or_404` lookup.
 
+#### `get_filter_backends(self)`
+
+Returns the classes that should be used to filter the queryset. Defaults to returning the `filter_backends` attribute.
+
+May be override to provide more complex behavior with filters, as using different (or even exlusive) lists of filter_backends depending on different criteria.
+
+For example:
+
+    def get_filter_backends(self):
+        if "geo_route" in self.request.QUERY_PARAMS:
+            return (GeoRouteFilter, CategoryFilter)
+        elif "geo_point" in self.request.QUERY_PARAMS:
+            return (GeoPointFilter, CategoryFilter)
+
+        return (CategoryFilter,)
+
 #### `get_serializer_class(self)`
 
 Returns the class that should be used for the serializer.  Defaults to returning the `serializer_class` attribute, or dynamically generating a serializer class if the `model` shortcut is being used.
 
-May be override to provide dynamic behavior such as using different serializers for read and write operations, or providing different serializers to different types of uesr.
+May be override to provide dynamic behavior such as using different serializers for read and write operations, or providing different serializers to different types of users.
 
 For example:
 
@@ -147,12 +163,14 @@ For example:
             return 20
         return 100
 
-**Save hooks**:
+**Save / deletion hooks**:
 
 The following methods are provided as placeholder interfaces.  They contain empty implementations and are not called directly by `GenericAPIView`, but they are overridden and used by some of the mixin classes.
 
 * `pre_save(self, obj)` - A hook that is called before saving an object.
 * `post_save(self, obj, created=False)` - A hook that is called after saving an object.
+* `pre_delete(self, obj)` - A hook that is called before deleting an object.
+* `post_delete(self, obj)` - A hook that is called after deleting an object.
 
 The `pre_save` method in particular is a useful hook for setting attributes that are implicit in the request, but are not part of the request data.  For instance, you might set an attribute on the object based on the request user, or based on a URL keyword argument.
 
@@ -328,7 +346,7 @@ You can then simply apply this mixin to a view or viewset anytime you need to ap
         serializer_class = UserSerializer
         lookup_fields = ('account', 'username')
 
-Using custom mixins is a good option if you have custom behavior that needs to be used 
+Using custom mixins is a good option if you have custom behavior that needs to be used
 
 ## Creating custom base classes
 
@@ -337,7 +355,7 @@ If you are using a mixin across multiple views, you can take this a step further
     class BaseRetrieveView(MultipleFieldLookupMixin,
                            generics.RetrieveAPIView):
         pass
-    
+
     class BaseRetrieveUpdateDestroyView(MultipleFieldLookupMixin,
                                         generics.RetrieveUpdateDestroyAPIView):
         pass