Classe « RelationshipProperty »

Informations générales

Héritage

builtins.object
    MemoizedSlots
builtins.object
    InspectionAttr
builtins.object
    _MappedAttribute
builtins.object
    HasCacheKey
        MapperProperty
            StrategizedProperty
                RelationshipProperty

Définition

class RelationshipProperty(StrategizedProperty):

Description _{[extrait de RelationshipProperty.doc]}

Describes an object property that holds a single item or list
    of items that correspond to a related database table.

    Public constructor is the :func:`_orm.relationship` function.

    .. seealso::

        :ref:`relationship_config_toplevel`

Constructeur(s)

Signature du constructeur	Description
__init__(self, argument, secondary=None, primaryjoin=None, secondaryjoin=None, foreign_keys=None, uselist=None, order_by=False, backref=None, back_populates=None, overlaps=None, post_update=False, cascade=False, viewonly=False, lazy='select', collection_class=None, passive_deletes=False, passive_updates=True, remote_side=None, enable_typechecks=True, join_depth=None, comparator_factory=None, single_parent=False, innerjoin=False, distinct_target_key=None, doc=None, active_history=False, cascade_backrefs=True, load_on_pending=False, bake_queries=True, _local_remote_pairs=None, query_class=None, info=None, omit_join=None, sync_backref=None, _legacy_inactive_history_style=False)	Construct a new :class:`.RelationshipProperty` object. _{[extrait de __init__.__doc__]}

__init__(self, argument, secondary=None, primaryjoin=None, secondaryjoin=None, foreign_keys=None, uselist=None, order_by=False, backref=None, back_populates=None, overlaps=None, post_update=False, cascade=False, viewonly=False, lazy='select', collection_class=None, passive_deletes=False, passive_updates=True, remote_side=None, enable_typechecks=True, join_depth=None, comparator_factory=None, single_parent=False, innerjoin=False, distinct_target_key=None, doc=None, active_history=False, cascade_backrefs=True, load_on_pending=False, bake_queries=True, _local_remote_pairs=None, query_class=None, info=None, omit_join=None, sync_backref=None, _legacy_inactive_history_style=False)

Construct a new :class:`.RelationshipProperty` object. _{[extrait de __init__.__doc__]}

Liste des attributs statiques

Nom de l'attribut	Valeur
entity	<sqlalchemy.util.langhelpers.memoized_property object at 0x7f40cb9a8280>
extension_type	symbol('NOT_EXTENSION')
inherit_cache	True
is_aliased_class	False
is_attribute	False
is_bundle	False
is_clause_element	False
is_instance	False
is_mapper	False
is_property	True
is_selectable	False
logger	<Logger sqlalchemy.orm.relationships.RelationshipProperty (WARNING)>
mapper	<sqlalchemy.util.langhelpers.memoized_property object at 0x7f40cb9a82e0>
strategy_wildcard_key	relationship

Attributs statiques hérités de la classe StrategizedProperty

cascade, strategy

Attributs statiques hérités de la classe MapperProperty

info, key, parent

Liste des propriétés

Nom de la propriété	Description
cascade	Return the current cascade setting for this _{[extrait de __doc__]}
class_attribute	Return the class-bound descriptor corresponding to this _{[extrait de __doc__]}

Liste des opérateurs

Opérateurs hérités de la classe object

__eq__, __ge__, __gt__, __le__, __lt__, __ne__

Liste des méthodes

Toutes les méthodes Méthodes d'instance Méthodes statiques

Signature de la méthode	Description
__str__(self)
cascade_iterator(self, type_, state, dict_, visited_states, halt_on=None)
Comparator(prop, parentmapper, adapt_to_entity=None, of_type=None, extra_criteria=())	Produce boolean, comparison, and other operators for _{[extrait de Comparator.__doc__]}
do_init(self)
instrument_class(self, mapper)
merge(self, session, source_state, source_dict, dest_state, dest_dict, load, _recursive, _resolve_conflict_map)