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Merge pull request #422 from elvard/18996

Fixed #18996 - Clarified overriden model methods not called on bulk operations
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commit 5fb22329a14695419f191da8b7d0b5b22793aff0 2 parents c870cb4 + 443999a
@timgraham timgraham authored
Showing with 8 additions and 1 deletion.
  1. +8 −1 docs/topics/db/models.txt
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9 docs/topics/db/models.txt
@@ -764,7 +764,7 @@ built-in model methods, adding new arguments. If you use ``*args,
**kwargs`` in your method definitions, you are guaranteed that your
code will automatically support those arguments when they are added.
-.. admonition:: Overriding Delete
+.. admonition:: Overridden model methods are not called on bulk operations
Note that the :meth:`~Model.delete()` method for an object is not
necessarily called when :ref:`deleting objects in bulk using a
@@ -772,6 +772,13 @@ code will automatically support those arguments when they are added.
gets executed, you can use :data:`~django.db.models.signals.pre_delete`
and/or :data:`~django.db.models.signals.post_delete` signals.
+ Unfortunately, there isn't a workaround when
+ :meth:`creating<django.db.models.query.QuerySet.bulk_create>` or
+ :meth:`updating<django.db.models.query.QuerySet.update>` objects in bulk,
+ since none of :meth:`~Model.save()`,
+ :data:`~django.db.models.signals.pre_save`, and
+ :data:`~django.db.models.signals.post_save` are called.
+
Executing custom SQL
--------------------

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