Fixed #21940 -- Added kwargs to contribute_to_class() of model fields..

Thanks Kronuz for the suggestion.

django/contrib/contenttypes/fields.py

@@ -28,7 +28,7 @@ class GenericForeignKey(object):
         self.for_concrete_model = for_concrete_model
         self.editable = False
 
-    def contribute_to_class(self, cls, name):
+    def contribute_to_class(self, cls, name, **kwargs):
         self.name = name
         self.model = cls
         self.cache_attr = "_%s_cache" % name
@@ -316,8 +316,9 @@ class GenericRelation(ForeignObject):
         qs = getattr(obj, self.name).all()
         return smart_text([instance._get_pk_val() for instance in qs])
 
-    def contribute_to_class(self, cls, name):
-        super(GenericRelation, self).contribute_to_class(cls, name, virtual_only=True)
+    def contribute_to_class(self, cls, name, **kwargs):
+        kwargs['virtual_only'] = True
+        super(GenericRelation, self).contribute_to_class(cls, name, **kwargs)
         # Save a reference to which model this class is on for future use
         self.model = cls
         # Add the descriptor for the relation

django/contrib/gis/db/models/fields.py

@@ -210,8 +210,8 @@ class GeometryField(Field):
             return gsrid
 
     ### Routines overloaded from Field ###
-    def contribute_to_class(self, cls, name):
-        super(GeometryField, self).contribute_to_class(cls, name)
+    def contribute_to_class(self, cls, name, **kwargs):
+        super(GeometryField, self).contribute_to_class(cls, name, **kwargs)
 
         # Setup for lazy-instantiated Geometry object.
         setattr(cls, self.attname, GeometryProxy(Geometry, self))

django/db/models/fields/__init__.py

@@ -914,10 +914,10 @@ class AutoField(Field):
             return None
         return int(value)
 
-    def contribute_to_class(self, cls, name):
+    def contribute_to_class(self, cls, name, **kwargs):
         assert not cls._meta.has_auto_field, \
             "A model can't have more than one AutoField."
-        super(AutoField, self).contribute_to_class(cls, name)
+        super(AutoField, self).contribute_to_class(cls, name, **kwargs)
         cls._meta.has_auto_field = True
         cls._meta.auto_field = self
 
@@ -1226,8 +1226,8 @@ class DateField(DateTimeCheckMixin, Field):
         else:
             return super(DateField, self).pre_save(model_instance, add)
 
-    def contribute_to_class(self, cls, name):
-        super(DateField, self).contribute_to_class(cls, name)
+    def contribute_to_class(self, cls, name, **kwargs):
+        super(DateField, self).contribute_to_class(cls, name, **kwargs)
         if not self.null:
             setattr(cls, 'get_next_by_%s' % self.name,
                 curry(cls._get_next_or_previous_by_FIELD, field=self,

django/db/models/fields/files.py

@@ -300,8 +300,8 @@ class FileField(Field):
             file.save(file.name, file, save=False)
         return file
 
-    def contribute_to_class(self, cls, name):
-        super(FileField, self).contribute_to_class(cls, name)
+    def contribute_to_class(self, cls, name, **kwargs):
+        super(FileField, self).contribute_to_class(cls, name, **kwargs)
         setattr(cls, self.name, self.descriptor_class(self))
 
     def get_directory_name(self):
@@ -407,8 +407,8 @@ class ImageField(FileField):
             kwargs['height_field'] = self.height_field
         return name, path, args, kwargs
 
-    def contribute_to_class(self, cls, name):
-        super(ImageField, self).contribute_to_class(cls, name)
+    def contribute_to_class(self, cls, name, **kwargs):
+        super(ImageField, self).contribute_to_class(cls, name, **kwargs)
         # Attach update_dimension_fields so that dimension fields declared
         # after their corresponding image field don't stay cleared by
         # Model.__init__, see bug #11196.

django/db/models/fields/related.py

@@ -2263,7 +2263,7 @@ class ManyToManyField(RelatedField):
                     data = [choices_list[0][0]]
         return smart_text(data)
 
-    def contribute_to_class(self, cls, name):
+    def contribute_to_class(self, cls, name, **kwargs):
         # To support multiple relations to self, it's useful to have a non-None
         # related name on symmetrical relations for internal reasons. The
         # concept doesn't make a lot of sense externally ("you want me to
@@ -2273,7 +2273,7 @@ class ManyToManyField(RelatedField):
         if self.rel.symmetrical and (self.rel.to == "self" or self.rel.to == cls._meta.object_name):
             self.rel.related_name = "%s_rel_+" % name
 
-        super(ManyToManyField, self).contribute_to_class(cls, name)
+        super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
 
         # The intermediate m2m model is not auto created if:
         #  1) There is a manually specified intermediate, or

django/db/models/fields/subclassing.py

@@ -46,11 +46,11 @@ def make_contrib(superclass, func=None):
     case that the existing contribute_to_class() calls all the necessary
     superclass methods.
     """
-    def contribute_to_class(self, cls, name):
+    def contribute_to_class(self, cls, name, **kwargs):
         if func:
-            func(self, cls, name)
+            func(self, cls, name, **kwargs)
         else:
-            super(superclass, self).contribute_to_class(cls, name)
+            super(superclass, self).contribute_to_class(cls, name, **kwargs)
         setattr(cls, self.name, Creator(self))
 
     return contribute_to_class