sqlalchemy.ext.associationproxy.AmbiguousAssociationProxyInstance

class documentation

class AmbiguousAssociationProxyInstance(AssociationProxyInstance):

an .AssociationProxyInstance where we cannot determine the type of target object.

Method	`__eq__`	Undocumented
Method	`__ne__`	Undocumented
Method	`_ambiguous`	Undocumented
Method	`_non_canonical_get_for_object`	Undocumented
Method	`_populate_cache`	Undocumented
Method	`any`	Produce a proxied 'any' expression using EXISTS.
Method	`get`	Undocumented
Method	`has`	Produce a proxied 'has' expression using EXISTS.
Class Variable	`_is_canonical`	Undocumented
Property	`_lookup_cache`	Undocumented

Inherited from AssociationProxyInstance:

Class Method	`for_proxy`	Undocumented
Method	`delete`	Undocumented
Method	`set`	Undocumented
Instance Variable	`target_class`	The intermediary class handled by this `.AssociationProxyInstance`.
Class Method	`_cls_unwrap_target_assoc_proxy`	Undocumented
Class Method	`_construct_for_assoc`	Undocumented
Method	`__clause_element__`	Undocumented
Method	`__init__`	Undocumented
Method	`__repr__`	Undocumented
Method	`_criterion_exists`	Undocumented
Method	`_default_getset`	Undocumented
Method	`_get_property`	Undocumented
Method	`_inflate`	Undocumented
Method	`_initialize_scalar_accessors`	Undocumented
Method	`_new`	Undocumented
Method	`_set`	Undocumented
Instance Variable	`_scalar_get`	Undocumented
Instance Variable	`_scalar_set`	Undocumented
Instance Variable	`collection_class`	Undocumented
Instance Variable	`key`	Undocumented
Instance Variable	`owning_class`	Undocumented
Instance Variable	`parent`	Undocumented
Instance Variable	`target_collection`	Undocumented
Instance Variable	`value_attr`	Undocumented
Property	`_comparator`	Undocumented
Property	`_target_is_object`	Undocumented
Property	`_unwrap_target_assoc_proxy`	Undocumented
Property	`_value_is_scalar`	Undocumented
Property	`attr`	Return a tuple of `(local_attr, remote_attr)`.
Property	`info`	Undocumented
Property	`local_attr`	The 'local' class attribute referenced by this `.AssociationProxyInstance`.
Property	`remote_attr`	The 'remote' class attribute referenced by this `.AssociationProxyInstance`.
Property	`scalar`	Return `True` if this `.AssociationProxyInstance` proxies a scalar relationship on the local side.

def __eq__(self, obj):

Undocumented

def __ne__(self, obj):

Undocumented

def _ambiguous(self):

Undocumented

def _non_canonical_get_for_object(self, parent_instance):

Undocumented

def _populate_cache(self, instance_class, mapper):

Undocumented

def any(self, criterion=None, **kwargs):

overrides sqlalchemy.ext.associationproxy.AssociationProxyInstance.any

Produce a proxied 'any' expression using EXISTS.

This expression will be a composed product using the .RelationshipProperty.Comparator.any and/or .RelationshipProperty.Comparator.has operators of the underlying proxied attributes.

def get(self, obj):

overrides sqlalchemy.ext.associationproxy.AssociationProxyInstance.get

Undocumented

def has(self, criterion=None, **kwargs):

overrides sqlalchemy.ext.associationproxy.AssociationProxyInstance.has

Produce a proxied 'has' expression using EXISTS.

This expression will be a composed product using the .RelationshipProperty.Comparator.any and/or .RelationshipProperty.Comparator.has operators of the underlying proxied attributes.

_is_canonical: bool =

Undocumented

@util.memoized_property
_lookup_cache =

Undocumented