Class ForwardManyToOneDescriptor
Accessor to the related object on the forward side of a many-to-one or one-to-one (via ForwardOneToOneDescriptor subclass) relation.
Declaration
class ForwardManyToOneDescriptor
source linkDocumentation
In the example::
class Child(Model):
parent = ForeignKey(Parent, related_name='children')
``Child.parent`` is a ``ForwardManyToOneDescriptor`` instance.Methods
▶ def __get__(self, instance, cls=None) Get the related instance through the forward relation.
With the example above, when getting ``child.parent``:
- ``self`` is the descriptor managing the ``parent`` attribute
- ``instance`` is the ``child`` instance
- ``cls`` is the ``Child`` class (we don't need it)
▷ def __reduce__(self) Pickling should return the instance attached by self.field on the model, not a new copy of that descriptor. Use getattr() to retrieve the instance directly from the model.
▶ def __set__(self, instance, value) Set the related instance through the forward relation.
With the example above, when setting ``child.parent = parent``:
- ``self`` is the descriptor managing the ``parent`` attribute
- ``instance`` is the ``child`` instance
- ``value`` is the ``parent`` instance on the right of the equal sign
Overrides
This method is overriden in:
Overrides
This method is overriden in:
Subclasses
Reexports