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40 Commits

Author SHA1 Message Date
Simon Charette 7ec330eeb9 Refs #26565 -- Errored nicely when using Prefetch with a values() queryset. 
Thanks Maxime Lorant for the report and Anssi for the suggestion.
 2016-05-03 09:28:31 -04:00
Tim Graham 92053acbb9 Fixed E128 flake8 warnings in tests/. 2016-04-08 10:12:33 -04:00
Simon Charette c92123cc1d Fixed #26226 -- Made related managers honor the queryset used for prefetching their results. 
Thanks Loïc for the suggested improvements and Tim for the review.
 2016-03-02 16:10:18 -05:00
Simon Charette 5d240b070d Refs #17001 -- Added a test for custom prefetch related queryset on generic relations. 2016-03-02 16:08:37 -05:00
Simon Charette c30086159d Used setupTestData in prefetch_related tests. 2016-02-23 13:53:58 -05:00
François Freitag bdbe50a491 Fixed #25546 -- Prevented duplicate queries with nested prefetch_related(). 2016-01-26 07:20:13 -05:00
Ian Foote 86eccdc8b6 Fixed #25544 -- Removed duplicate ids in prefetch_related() queries. 2015-12-17 19:08:30 -05:00
Simon Charette cc8c02fa0f Refs #25693 -- Added a regression test for `to_attr` validation on forward m2m. 2015-11-11 12:25:10 -05:00
Ian Foote 4608573788 Fixed #25693 -- Prevented data loss with Prefetch and ManyToManyField. 
Thanks to Jamie Matthews for finding and explaining the bug.
 2015-11-10 12:12:07 -05:00
Aymeric Augustin e542e81b39 Renamed descriptor classes for related objects. 
The old names were downright confusing. Some seemed to mean the opposite
of what the class actually did.

The new names follow a consistent nomenclature:

    (Forward|Reverse)(ManyToOne|OneToOne|ManyToMany)Descriptor.

I mentioned combinations that do not exist in the docstring in order to
help people who would search for them in the code base.
 2015-09-21 22:20:42 +02:00
Dražen Odobašić b1e33ceced Fixed #23395 -- Limited line lengths to 119 characters. 2015-09-12 11:40:50 -04:00
Gagaro 74261bc593 Fixed #24873 -- Prevented nested Prefetch objects from being overwritten. 2015-06-18 15:42:47 -04:00
Tim Graham 0ed7d15563 Sorted imports with isort; refs #23860. 2015-02-06 08:16:28 -05:00
Jon Dufresne 4468c08d70 Fixed #23968 -- Replaced list comprehension with generators and dict comprehension 2014-12-08 07:58:23 -05:00
Berker Peksag f7969b0920 Fixed #23620 -- Used more specific assertions in the Django test suite. 2014-11-03 11:56:37 -05:00
Tim Graham 4b257cf261 Fixed flake8 warnings. 2014-09-29 08:13:40 -04:00
Thomas Chaumeny b2aad7b836 Replaced set([foo, ...]) by {foo, ...} literals. Refs PR 3282. 
Thanks Collin Anderson for the review.
 2014-09-29 00:01:38 +07:00
Aymeric Augustin 9562ffea97 Avoid the word "stupid". 
There's always a better word.
 2014-09-09 20:55:57 +02:00
Aymeric Augustin ae3fe6ccbb Reordered setUp code in prefetch_related tests. 
This allows these tests to run on databases that reject duplicate NULL
values in unique fields e.g. SQL Server.

Forward port of 4fb50a9a from stable/1.7.x.
 2014-06-05 16:33:02 +02:00
Loic Bistuer 870b0a1f86 Fixed the ordering of prefetch lookups so that latter lookups can refer to former lookups. 
Thanks Anssi Kääriäinen and Tim Graham for the reviews. Refs #17001 and #22650.
 2014-05-21 10:30:48 +07:00
Loic Bistuer bdf3473e64 Fixed #22650 -- Fixed regression on prefetch_related. 
Regression from f51c1f59 when using select_related then prefetch_related
on the reverse side of an O2O:

Author.objects.select_related('bio').prefetch_related('bio__books')

Thanks Aymeric Augustin for the report and tests. Refs #17001.
 2014-05-21 10:26:04 +07:00
Simon Charette 79f05616fb Fixed flake8 warnings introduced in recent commits. 2014-04-16 16:49:37 -04:00
Loic Bistuer b82f30785f Fixed stray comment introduced by d3b71b9. 
Thanks Claude Paroz for the report.
 2014-04-13 08:26:25 +07:00
valtron d3b71b976d Fixed #21760 -- prefetch_related used an inefficient query for reverse FK. 
Regression introduced by commit 9777442. Refs #21410.
 2014-04-13 00:34:16 +07:00
Loic Bistuer 7bbb6958dc Allowed custom querysets when prefetching single valued relations 
The original patch for custom prefetches didn't allow usage of custom
queryset for single valued relations (along ForeignKey or OneToOneKey).
Allowing these enables calling performance oriented queryset methods like
select_related or defer/only.

Thanks @akaariai and @timgraham for the reviews. Refs #17001.
 2014-03-03 21:35:19 +02:00
Aymeric Augustin e32095616c Imported override_settings from its new location. 2013-12-23 21:37:56 +01:00
Loic Bistuer 6685713869 Fixed E127 pep8 warnings. 2013-12-14 11:59:15 -05:00
Loic Bistuer cb83448891 Fixed #21410 -- prefetch_related() for ForeignKeys with related_name='+' 
Regression introduced by commit 9777442.

Thanks to trac username troygrosfield for the report and test case.
 2013-11-13 07:35:34 +02:00
Tim Graham 536c447820 Fixed a couple flake8 warnings. 2013-11-07 20:10:25 -05:00
Loic Bistuer f51c1f5900 Fixed #17001 -- Custom querysets for prefetch_related. 
This patch introduces the Prefetch object which allows customizing prefetch
operations.

This enables things like filtering prefetched relations, calling select_related
from a prefetched relation, or prefetching the same relation multiple times
with different querysets.

When a Prefetch instance specifies a to_attr argument, the result is stored
in a list rather than a QuerySet. This has the fortunate consequence of being
significantly faster. The preformance improvement is due to the fact that we
save the costly creation of a QuerySet instance.

Thanks @akaariai for the original patch and @bmispelon and @timgraham
for the reviews.
 2013-11-07 14:49:49 +02:00
Alex Gaynor 9d740eb8b1 Fix all violators of E231 2013-10-26 12:15:03 -07:00
Tim Graham 96d1d4e292 Removed unused local variables in tests. 2013-10-19 08:31:38 -04:00
Alasdair Nicol a800036981 Fixed #21287 -- Fixed E123 pep8 warnings 2013-10-18 10:07:39 +01:00
Alasdair Nicol bab9123daa Fixed #21268 -- Fixed E303 pep8 warnings 2013-10-18 01:46:24 +01:00
Alasdair Nicol dfb4cb9970 Fixed #21285 -- Fixed E121,E122 pep8 warnings 2013-10-17 20:20:11 -04:00
Tim Graham b67ab75e82 Fixed assorted flake8 errors. 2013-10-11 07:25:14 -04:00
Claude Paroz 5c1143910e Removed most of absolute_import imports 
Should be unneeded with Python 2.7 and up.
Added some unicode_literals along the way.
 2013-07-29 20:28:13 +02:00
Tim Graham a2967d5204 Fixed #20242 - Added a regression test for prefetch_related. 
Issue was fixed by removal of chunked reads from
QuerySet iteration in 70679243d1.

Thanks Simeon Visser for the patch.
 2013-05-28 13:37:44 -04:00
Luke Plant 4fd94969d8 Fixed #19607 - prefetch_related crash 
Thanks to av@rdf.ru and flarno11@yahoo.de for the report.
 2013-05-24 11:10:48 +01:00
Florian Apolloner 89f40e3624 Merged regressiontests and modeltests into the test root. 2013-02-26 14:36:57 +01:00