update_or_create(defaults=None, **kwargs) A convenience method for updating an object with the given kwargs, creating

Field.one_to_many Boolean flag that is True if the field has a one-to-many relation, such as a GenericRelation

ManyToManyField.through Django will automatically generate a table to manage many-to-many relationships. However, if you want

Model.get_deferred_fields() [source] A helper method that returns a set containing the attribute

lookup_name The name of this lookup, used to identify it on parsing query expressions. It cannot contain the string "__"

Options.app_label If a model is defined outside of an application in INSTALLED_APPS, it must declare which app

Model API reference. For introductory material, see Models. Model field reference

Model.get_FOO_display() For every field that has

Model.get_absolute_url() Define a get_absolute_url() method to tell Django how to calculate the canonical URL for

class Concat(*expressions, **extra) [source] Accepts a list of at least two text fields or