Ticket #13206: django-model_init_super_r12847.patch

django/db/models/base.py

@@ -338 +338 @@
                     pass
             if kwargs:
                 raise TypeError("'%s' is an invalid keyword argument for this function" % kwargs.keys()[0])
+        super(Model, self).__init__()
         signals.post_init.send(sender=self.__class__, instance=self)
 
     def __repr__(self):

tests/modeltests/model_inheritance/models.py

@@ -144 +144 @@
     def __unicode__(self):
         return self.content
 
+class MultiMixin(object):
+    def __init__(self, *args, **kwargs):
+        self.other_variable = 1
+        
+class MixinModel(models.Model, MultiMixin):
+    pass
+
 __test__ = {'API_TESTS':"""
 # The Student and Worker models both have 'name' and 'age' fields on them and
 # inherit the __unicode__() method, just as with normal Python subclassing.
@@ -376 +383 @@
 3
 >>> settings.DEBUG = False
 
+>>> mm = MixinModel()
+>>> getattr(mm, 'other_variable', False)
+1
+
 """}