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53 Commits

Author SHA1 Message Date
Simon Charette
271bfe65d9
Fixed #26916 -- Fixed prefetch_related when using a cached_property as to_attr. 
Thanks Trac alias karyon for the report and Tim for the review.
 2016-07-19 16:05:07 -04:00
Simon Charette
53a5fb3cc0 Fixed #26676 -- Prevented prefetching to_attr from caching its result in through attr. 
Thanks Ursidours for the report.
 2016-05-31 14:32:58 -04:00
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
Attila Tovt
5e2c4d7afb Fixed #26264 -- Fixed prefetch_related() crashes with values_list(flat=True) 2016-02-26 19:26:15 -05:00
Adam Chainz
ef33bc2d4d Fixed #25279 -- Made prefetch_related_objects() public. 2016-02-26 14:55:01 -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
Flavio Curella
c2e70f0265 Fixed #21127 -- Started deprecation toward requiring on_delete for ForeignKey/OneToOneField 2015-07-27 18:28:13 -04:00
Gagaro
74261bc593 Fixed #24873 -- Prevented nested Prefetch objects from being overwritten. 2015-06-18 15:42:47 -04:00
Brian King
bfb5b7150f Fixed #24912 -- Fixed prefetch_related failure for UUIDField primary keys 
This resolves a problem on databases besides PostgreSQL when using
prefetch_related with a source model that uses a UUID primary key.
 2015-06-15 09:37:38 -04:00
Collin Anderson
db77915c9f Fixed E265 comment style 2015-02-06 09:30:35 -05:00
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
Gabe Jackson
b77f26313c Fixed #22207 -- Added support for GenericRelation reverse lookups 
GenericRelation now supports an optional related_query_name argument.
Setting related_query_name adds a relation from the related object back to
the content type for filtering, ordering and other query operations.

Thanks to Loic Bistuer for spotting a couple of important issues in
his review.
 2014-03-05 22:37:53 +02:00
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
Simon Charette
10e3faf191 Fixed #19774 -- Deprecated the contenttypes.generic module. 
It contained models, forms and admin objects causing undesirable
import side effects. Refs #16368.

Thanks to Ramiro, Carl and Loïc for the review.
 2014-01-26 14:42:30 -05:00
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
Jason Myers
c3791463a5 Fixing E302 Errors 
Signed-off-by: Jason Myers <jason@jasonamyers.com>
 2013-11-02 23:48:47 -05:00
Alex Gaynor
9d740eb8b1 Fix all violators of E231 2013-10-26 12:15:03 -07:00
Tim Graham
1597503a01 Fixed E221 pep8 warnings. 2013-10-22 09:51:39 -04:00
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
Tim Graham
5649c0af9d Fixed "indentation is not a multiple of four" pep8 issues. 2013-09-03 14:22:21 -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