Fixed #1818 -- Added better error message for FieldDoesNotExist error…

…. Thanks, Christopher Lenz

git-svn-id: http://code.djangoproject.com/svn/django/trunk@2870 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/options.py

@@ -94,7 +94,7 @@ def get_field(self, name, many_to_many=True):
         for f in to_search:
             if f.name == name:
                 return f
-        raise FieldDoesNotExist, "name=%s" % name
+        raise FieldDoesNotExist, '%s has no field named %r' % (self.object_name, name)
 
     def get_order_sql(self, table_prefix=''):
         "Returns the full 'ORDER BY' clause for this object, according to self.ordering."