mirror of
https://github.com/django/django.git
synced 2024-12-22 17:16:24 +00:00
Fixed #35731 -- Extended db_default docs.
This added a missing db_default reference in docs/topics/db/models.txt, and added a reference to the DatabaseDefault object.
This commit is contained in:
parent
04adff9f98
commit
35ab2e0182
@ -426,6 +426,11 @@ precedence when creating instances in Python code. ``db_default`` will still be
|
||||
set at the database level and will be used when inserting rows outside of the
|
||||
ORM or when adding a new field in a migration.
|
||||
|
||||
If a field has a ``db_default`` without a ``default`` set and no value is
|
||||
assigned to the field, a ``DatabaseDefault`` object is returned as the field
|
||||
value on unsaved model instances. The actual value for the field is determined
|
||||
by the database when the model instance is saved.
|
||||
|
||||
``db_index``
|
||||
------------
|
||||
|
||||
|
@ -224,6 +224,15 @@ ones:
|
||||
object. If callable it will be called every time a new object is
|
||||
created.
|
||||
|
||||
:attr:`~Field.db_default`
|
||||
The database-computed default value for the field. This can be a literal
|
||||
value or a database function.
|
||||
|
||||
If both ``db_default`` and :attr:`Field.default` are set, ``default`` will
|
||||
take precedence when creating instances in Python code. ``db_default`` will
|
||||
still be set at the database level and will be used when inserting rows
|
||||
outside of the ORM or when adding a new field in a migration.
|
||||
|
||||
:attr:`~Field.help_text`
|
||||
Extra "help" text to be displayed with the form widget. It's useful for
|
||||
documentation even if your field isn't used on a form.
|
||||
|
Loading…
Reference in New Issue
Block a user