diff options
Diffstat (limited to 'lib/sqlalchemy/orm/mapper.py')
| -rw-r--r-- | lib/sqlalchemy/orm/mapper.py | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py index 60083bf4d..40a76181c 100644 --- a/lib/sqlalchemy/orm/mapper.py +++ b/lib/sqlalchemy/orm/mapper.py @@ -3022,23 +3022,28 @@ class Mapper( allconds = [] + start = False + + # as of #7507, from the lowest base table on upwards, + # we include all intermediary tables. + + for mapper in reversed(list(self.iterate_to_root())): + if mapper.local_table in tables: + start = True + elif not isinstance(mapper.local_table, expression.TableClause): + return None + if start and not mapper.single: + allconds.append(mapper.inherit_condition) + tables.add(mapper.local_table) + + # only the bottom table needs its criteria to be altered to fit + # the primary key ident - the rest of the tables upwards to the + # descendant-most class should all be present and joined to each + # other. try: - start = False - for mapper in reversed(list(self.iterate_to_root())): - if mapper.local_table in tables: - start = True - elif not isinstance( - mapper.local_table, expression.TableClause - ): - return None - if start and not mapper.single: - allconds.append( - visitors.cloned_traverse( - mapper.inherit_condition, - {}, - {"binary": visit_binary}, - ) - ) + allconds[0] = visitors.cloned_traverse( + allconds[0], {}, {"binary": visit_binary} + ) except _OptGetColumnsNotAvailable: return None |