auth() [source] If this processor is enabled, every RequestContext will contain these variables: user – An auth.User instance representing the currently logged-in user (or an AnonymousUser instance, if the client isn’t logged in). perms – An instance of django.contrib.auth.context_processors.PermWrapper, representing the permissions that the currently logged-in user has.

ModelAdmin.preserve_filters The admin now preserves filters on the list view after creating, editing or deleting an object. You can restore the previous behavior of clearing filters by setting this attribute to False.

AdminSite.has_permission(request) [source] Returns True if the user for the given HttpRequest has permission to view at least one page in the admin site. Defaults to requiring both User.is_active and User.is_staff to be True.

check_password(password, encoded) [source] If you’d like to manually authenticate a user by comparing a plain-text password to the hashed password in the database, use the convenience function check_password(). It takes two arguments: the plain-text password to check, and the full value of a user’s password field in the database to check against, and returns True if they match, False otherwise.

class PersistentRemoteUserMiddleware New in Django 1.9. Middleware for utilizing Web server provided authentication when enabled only on the login page. See Using REMOTE_USER on login pages only for usage details.

is_anonymous Read-only attribute which is always False. This is a way of differentiating User and AnonymousUser objects. Generally, you should prefer using is_authenticated to this attribute. Changed in Django 1.10: In older versions, this was a method. Backwards-compatibility support for using it as a method will be removed in Django 2.0.

class DateField(**kwargs) [source] Default widget: DateInput Empty value: None Normalizes to: A Python datetime.date object. Validates that the given value is either a datetime.date, datetime.datetime or string formatted in a particular date format. Error message keys: required, invalid Takes one optional argument: input_formats A list of formats used to attempt to convert a string to a valid datetime.date object. If no input_formats argument is provided, the default input formats

class AddField(model_name, name, field, preserve_default=True) [source] Adds a field to a model. model_name is the model’s name, name is the field’s name, and field is an unbound Field instance (the thing you would put in the field declaration in models.py - for example, models.IntegerField(null=True). The preserve_default argument indicates whether the field’s default value is permanent and should be baked into the project state (True), or if it is temporary and just for this migration (Fal

DateField.auto_now Automatically set the field to now every time the object is saved. Useful for “last-modified” timestamps. Note that the current date is always used; it’s not just a default value that you can override. The field is only automatically updated when calling Model.save(). The field isn’t updated when making updates to other fields in other ways such as QuerySet.update(), though you can specify a custom value for the field in an update like that.

class DurationField(**options) [source] A field for storing periods of time - modeled in Python by timedelta. When used on PostgreSQL, the data type used is an interval and on Oracle the data type is INTERVAL DAY(9) TO SECOND(6). Otherwise a bigint of microseconds is used. Note Arithmetic with DurationField works in most cases. However on all databases other than PostgreSQL, comparing the value of a DurationField to arithmetic on DateTimeField instances will not work as expected.