diff options
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/models/instances.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/ref/models/instances.txt b/docs/ref/models/instances.txt index 71fb880740..8b2c5b6ef5 100644 --- a/docs/ref/models/instances.txt +++ b/docs/ref/models/instances.txt @@ -621,6 +621,14 @@ from the DB will get updated. In effect there is an automatic ``update_fields`` in this case. If you assign or change any deferred field value, the field will be added to the updated fields. +.. note:: + + If ``update_fields`` is passed in, only the + :meth:`~django.db.models.Field.pre_save` methods of the ``update_fields`` + are called. For example, this means that date/time fields with + ``auto_now=True`` will not be updated unless they are included in the + ``update_fields``. + Deleting objects ================ |