SET_NULL [source] Set the ForeignKey null; this is only possible if null

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

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

Field.editable If False, the field will not be displayed in the admin or any other

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

Field.help_text Extra “help” text to be displayed with the form widget. It’s useful for documentation even if your field isn’t

ForeignKey.swappable Controls the migration framework’s reaction if this ForeignKey is pointing at a swappable

description A verbose description of the field, e.g. for the django.contrib.admindocs application.

class BigIntegerField(**options) [source] A 64-bit integer, much like an IntegerField

ForeignKey.related_query_name The name to use for the reverse filter name from the target model. It defaults to the value of