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

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

class Aggregate(expression, output_field=None, **extra) [source]

template A class attribute, as a format string, that describes the SQL that is generated for this aggregate. Defaults to '%(function)s(

class Length(expression, **extra) [source] Accepts a single text field or expression and

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

process_rhs(compiler, connection) [source] Behaves the same way as process_lhs()

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

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