Field.primary_key If True, this field is the primary key for the model. If you

ForeignKey.to_field The field on the related object that the relation is to. By default, Django uses the primary key of the

FilePathField.allow_files Optional. Either True or False. Default is True. Specifies

lhs The left-hand side - what is being transformed. It must follow the Query Expression API

Options.required_db_vendor New in Django 1.9. Name

class Lower(expression, **extra) [source] Accepts a single text field or expression and returns

none() Calling none() will create a queryset that never returns any objects and no query will be executed when accessing the

add(*objs, bulk=True) Adds the specified model objects to the related object set. Example:

class lookups.RegisterLookupMixin A mixin that implements the lookup API on a class.

Model.__hash__() [source] The __hash__() method is based on the instance’s primary