ForeignKey.related_name The name to use for the relation from the related object back to this one. It’s also the default value

ForeignKey.on_delete When an object referenced by a ForeignKey is deleted, Django will emulate the behavior of

Field.auto_created Boolean flag that indicates if the field was automatically created, such as the OneToOneField

GenericIPAddressField.protocol Limits valid inputs to the specified protocol. Accepted values are 'both' (default)

class IntegerField(**options) [source] An integer. Values from -2147483648 to

Field.unique_for_year Like unique_for_date and unique_for_month.

GenericIPAddressField.unpack_ipv4 Unpacks IPv4 mapped addresses like ::ffff:192.0.2.1. If this option is enabled

Field.db_tablespace The name of the database tablespace to use for this field’s index, if this field

FieldFile.size The result of the underlying

class TimeField(auto_now=False, auto_now_add=False, **options) [source] A time, represented