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Fixed #23372 -- Made loaddata faster if it doesn't find any fixtures.

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Django's test suite often tries to load fixture files from apps that have
no fixtures at all. This creates a lot of unnecessary disabling and
enabling of constraints which can be expensive on some database.

To speed this up, loaddata now first checks if any fixture file matches.
If no fixture file is matched, then the command exits before disabling
and enabling of constraints is done.

The main benefit of this change is seen on MSSQL, where tests on
Django 1.8 run hours faster.
This commit is contained in:
Anssi Kääriäinen 2015-12-29 18:29:11 +02:00 • committed by Tim Graham
parent 6687f4dcbb
commit ee9f4686b1
4 changed files with 29 additions and 1 deletions
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3
docs/releases/1.8.8.txt
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@ -51,3 +51,6 @@ Bugfixes
* Fixed a regression in the admin which ignored line breaks in read-only fields
instead of converting them to ``<br>`` (:ticket:`25465`).
* Made ``loaddata`` skip disabling and enabling database constraints when it
doesn't load any fixtures (:ticket:`23372`).

3
docs/releases/1.9.1.txt
View file

@ -73,3 +73,6 @@ Bugfixes
* Fixed incorrect object reference in
``SingleObjectMixin.get_context_object_name()`` (:ticket:`26006`).
* Made ``loaddata`` skip disabling and enabling database constraints when it
doesn't load any fixtures (:ticket:`23372`).