Ticket #1972: management.2.diff

management.py

@@ -819 +819 @@
     e = ModelErrorCollection(outfile)
     for cls in models.get_models(app):
         opts = cls._meta
-
+        # Check the model.
+        if len(opts.fields) == 1 and opts.fields[0].get_internal_type() == 'AutoField':
+            e.add(opts, "model '%s' in application '%s': A model must have at least one explicitly declared field." % (cls._meta.object_name, opts.app_label))
+        
         # Do field-specific validation.
         for f in opts.fields:
             if f.name == 'id' and not f.primary_key and opts.pk.name == 'id':