diff options
Diffstat (limited to 'lib/sqlalchemy/orm/properties.py')
| -rw-r--r-- | lib/sqlalchemy/orm/properties.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/properties.py b/lib/sqlalchemy/orm/properties.py index 775bcd0a5..f0cae49d8 100644 --- a/lib/sqlalchemy/orm/properties.py +++ b/lib/sqlalchemy/orm/properties.py @@ -399,6 +399,10 @@ class PropertyLoader(StrategizedProperty): # ensure the "select_mapper", if different from the regular target mapper, is compiled. self.mapper.get_select_mapper()._check_compile() + for inheriting in self.parent.iterate_to_root(): + if inheriting is not self.parent and inheriting.get_property(self.key, raiseerr=False): + warnings.warn(RuntimeWarning("Warning: relation '%s' on mapper '%s' supercedes the same relation on inherited mapper '%s'; this can cause dependency issues during flush" % (self.key, self.parent, inheriting))) + if self.association is not None: if isinstance(self.association, type): self.association = mapper.class_mapper(self.association, entity_name=self.entity_name, compile=False)._check_compile() |