CASCADE [source] Cascade deletes. Django emulates the behavior of the SQL constraint ON DELETE

class Max(expression, output_field=None, **extra) [source] Returns the maximum value of the

class ExtractDay(expression, tzinfo=None, **extra) [source] lookup_name

Options.default_permissions Defaults to ('add', 'change', 'delete'). You may customize this list, for example,

Model.get_previous_by_FOO(**kwargs) For every

Field.unique_for_month Like unique_for_date, but requires the field to be unique with respect to the month.

process_lhs(compiler, connection, lhs=None) [source] Returns a tuple (lhs_string, lhs_params)

get_transform(transform_name) Returns a Transform named transform_name. The default implementation

class GenericIPAddressField(protocol='both', unpack_ipv4=False, **options) [source] An IPv4

Field.null If True, Django will store empty values as NULL in the database. Default is False