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

DateField.auto_now_add Automatically set the field to now when the object is first created. Useful for creation of timestamps

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

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

ForeignKey.limit_choices_to Sets a limit to the available choices for this field when this field is rendered using a ModelForm

pre_save(model_instance, add) [source] Method called prior to get_db_prep_save()

Field.unique_for_date Set this to the name of a DateField or DateTimeField to require that this field

rel_db_type(connection) [source] New in Django

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

FieldFile.close() [source] Behaves like the standard Python file.close() method