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

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

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

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

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

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

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

class FieldFile [source] When you access a FileField on a model, you are given

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

Field.is_relation Boolean flag that indicates if a field contains references to one or more other models for its functionality