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Added a bulk option to RelatedManager remove() and clear() methods

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Refs #21169
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Loic Bistuer 2013-11-22 00:14:16 +07:00 • committed by Anssi Kääriäinen
parent 52015b963d
commit f450bc9f44
6 changed files with 90 additions and 37 deletions
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14
docs/ref/models/relations.txt
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@ -110,6 +110,17 @@ Related objects reference
the ``blog`` :class:`~django.db.models.ForeignKey` doesn't have
``null=True``, this is invalid.
.. versionchanged 1.7::
For :class:`~django.db.models.ForeignKey` objects, this method accepts
a ``bulk`` argument to control how to perform the operation.
If ``True`` (the default), ``QuerySet.update()`` is used.
If ``bulk=False``, the ``save()`` method of each individual model
instance is called instead. This triggers the
:data:`~django.db.models.signals.pre_save` and
:data:`~django.db.models.signals.post_save` signals and comes at the
expense of performance.
.. method:: clear()
Removes all objects from the related object set::
@ -121,7 +132,8 @@ Related objects reference
them.
Just like ``remove()``, ``clear()`` is only available on
:class:`~django.db.models.ForeignKey`\s where ``null=True``.
:class:`~django.db.models.ForeignKey`\s where ``null=True`` and it also
accepts the ``bulk`` keyword argument.
.. note::