fixed detection of multi-table inheritance in combination with only()…

…/deferred()
egrim · Feb 13, 2011 · 518773f · 518773f
1 parent e58d0b2
commit 518773f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/djangotoolbox/db/basecompiler.py b/djangotoolbox/db/basecompiler.py
@@ -296,6 +296,11 @@ def get_fields(self):
         only_load = self.deferred_to_columns()
         if only_load:
             db_table = self.query.model._meta.db_table
+            only_load = dict((k, v) for k, v in only_load.items()
+                             if v or k == db_table)
+            if len(only_load.keys()) > 1:
+                raise DatabaseError('Multi-table inheritance is not supported '
+                                    'by non-relational DBs.' + repr(only_load))
             fields = [f for f in fields if db_table in only_load and
                       f.column in only_load[db_table]]