sqlalchemy.orm.interfaces.

class documentation

class _MapsColumns(_DCAttributeOptions, _MappedAttribute[_T]): (source)

Known subclasses: sqlalchemy.orm.descriptor_props.CompositeProperty, sqlalchemy.orm.properties.ColumnProperty, sqlalchemy.orm.properties.MappedColumn

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interface for declarative-capable construct that delivers one or more Column objects to the declarative process to be part of a Table.

Class Variable	`__slots__`	Undocumented
Property	`columns_to_assign`	A list of Column objects that should be declaratively added to the new Table object.
Property	`mapper_property_to_assign`	return a MapperProperty to be assigned to the declarative mapping

Inherited from _DCAttributeOptions:

Class Variable	`_attribute_options`	behavioral options for ORM-enabled Python attributes
Class Variable	`_has_dataclass_arguments`	Undocumented

Inherited from TypingOnly (via _DCAttributeOptions, _MappedAttribute):

Method __init_subclass__ Undocumented

__slots__: tuple = (source) ¶

overrides sqlalchemy.orm.interfaces._DCAttributeOptions.__slots__

overridden in sqlalchemy.orm.properties.ColumnProperty, sqlalchemy.orm.properties.MappedColumn

Undocumented

@property
columns_to_assign: List[Tuple[Column[_T], int]] = (source) ¶

overridden in sqlalchemy.orm.descriptor_props.CompositeProperty, sqlalchemy.orm.properties.ColumnProperty, sqlalchemy.orm.properties.MappedColumn

A list of Column objects that should be declaratively added to the new Table object.

@property
mapper_property_to_assign: Optional[MapperProperty[_T]] = (source) ¶

overridden in sqlalchemy.orm.descriptor_props.CompositeProperty, sqlalchemy.orm.properties.ColumnProperty, sqlalchemy.orm.properties.MappedColumn

return a MapperProperty to be assigned to the declarative mapping

sqlalchemy.orm.interfaces._MapsColumns

`sqlalchemy.orm.interfaces._MapsColumns`