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

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

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

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

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

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

class FilePathField(path=None, match=None, recursive=False, max_length=100, **options) [source] A

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

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