diff options
Diffstat (limited to 'lib/sqlalchemy/orm/instrumentation.py')
| -rw-r--r-- | lib/sqlalchemy/orm/instrumentation.py | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/instrumentation.py b/lib/sqlalchemy/orm/instrumentation.py index 5a4fc2093..cfd5b600c 100644 --- a/lib/sqlalchemy/orm/instrumentation.py +++ b/lib/sqlalchemy/orm/instrumentation.py @@ -29,7 +29,7 @@ alternate instrumentation forms. """ -from . import exc, collections, events +from . import exc, collections, events, interfaces from operator import attrgetter from .. import event, util state = util.importlater("sqlalchemy.orm", "state") @@ -83,6 +83,24 @@ class ClassManager(dict): # raises unless self.mapper has been assigned raise exc.UnmappedClassError(self.class_) + def _all_sqla_attributes(self, exclude=None): + """return an iterator of all classbound attributes that are + implement :class:`._InspectionAttr`. + + This includes :class:`.QueryableAttribute` as well as extension + types such as :class:`.hybrid_property` and :class:`.AssociationProxy`. + + """ + if exclude is None: + exclude = set() + for supercls in self.class_.__mro__: + for key in set(supercls.__dict__).difference(exclude): + exclude.add(key) + val = supercls.__dict__[key] + if isinstance(val, interfaces._InspectionAttr): + yield key, val + + def _attr_has_impl(self, key): """Return True if the given attribute is fully initialized. |