ImageField.height_field Name of a model field which will be auto-populated with the height of the image each time the model

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

FieldFile.name The name of the file including the relative path from the root of the

ImageField.width_field Name of a model field which will be auto-populated with the width of the image each time the model instance

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

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

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

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

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

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