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path: root/docs/ref/models/querysets.txt
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2013-04-20Adapted uses of versionchanged/versionadded to the new form.Juan Catalano
Refs #20104.
2013-03-18Fixed #19968 -- Dropped support for PostgreSQL < 8.4.Aymeric Augustin
2013-03-08Fixed #15363 -- Renamed and normalized to `get_queryset` the methods that ↵Loic Bistuer
return a QuerySet.
2013-02-27Fixed #19861 -- Transaction ._dirty flag improvementAnssi Kääriäinen
There were a couple of errors in ._dirty flag handling: * It started as None, but was never reset to None. * The _dirty flag was sometimes used to indicate if the connection was inside transaction management, but this was not done consistently. This also meant the flag had three separate values. * The None value had a special meaning, causing for example inability to commit() on new connection unless enter/leave tx management was done. * The _dirty was tracking "connection in transaction" state, but only in managed transactions. * Some tests never reset the transaction state of the used connection. * And some additional less important changes. This commit has some potential for regressions, but as the above list shows, the current situation isn't perfect either.
2013-02-16Fixed #17260 -- Added time zone aware aggregation and lookups.Aymeric Augustin
Thanks Carl Meyer for the review. Squashed commit of the following: commit 4f290bdb60b7d8534abf4ca901bd0844612dcbda Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 13 21:21:30 2013 +0100 Used '0:00' instead of 'UTC' which doesn't always exist in Oracle. Thanks Ian Kelly for the suggestion. commit 01b6366f3ce67d57a58ca8f25e5be77911748638 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 13 13:38:43 2013 +0100 Made tzname a parameter of datetime_extract/trunc_sql. This is required to work around a bug in Oracle. commit 924a144ef8a80ba4daeeafbe9efaa826566e9d02 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 13 14:47:44 2013 +0100 Added support for parameters in SELECT clauses. commit b4351d2890cd1090d3ff2d203fe148937324c935 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 22:30:22 2013 +0100 Documented backwards incompatibilities in the two previous commits. commit 91ef84713c81bd455f559dacf790e586d08cacb9 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 09:42:31 2013 +0100 Used QuerySet.datetimes for the admin's date_hierarchy. commit 0d0de288a5210fa106cd4350961eb2006535cc5c Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 09:29:38 2013 +0100 Used QuerySet.datetimes in date-based generic views. commit 9c0859ff7c0b00734afe7fc15609d43d83215072 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:43:25 2013 +0100 Implemented QuerySet.datetimes on Oracle. commit 68ab511a4ffbd2b811bf5da174d47e4dd90f28fc Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:43:14 2013 +0100 Implemented QuerySet.datetimes on MySQL. commit 22d52681d347a8cdf568dc31ed032cbc61d049ef Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:42:29 2013 +0100 Implemented QuerySet.datetimes on SQLite. commit f6800fd04c93722b45f9236976389e0b2fe436f5 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:43:03 2013 +0100 Implemented QuerySet.datetimes on PostgreSQL. commit 0c829c23f4cf4d6804cadcc93032dd4c26b8c65e Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:41:08 2013 +0100 Added datetime-handling infrastructure in the ORM layers. commit 104d82a7778cf3f0f5d03dfa53709c26df45daad Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 10:05:55 2013 +0100 Updated null_queries tests to avoid clashing with the __second lookup. commit c01bbb32358201b3ac8cb4291ef87b7612a2b8e6 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 23:07:41 2013 +0100 Updated tests of .dates(). Replaced .dates() by .datetimes() for DateTimeFields. Replaced dates with datetimes in the expected output for DateFields. commit 50fb7a52462fecf0127b38e7f3df322aeb287c43 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:40:09 2013 +0100 Updated and added tests for QuerySet.datetimes. commit a8451a5004c437190e264667b1e6fb8acc3c1eeb Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 22:34:46 2013 +0100 Documented the new time lookups and updated the date lookups. commit 29413eab2bd1d5e004598900c0dadc0521bbf4d3 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 16:15:49 2013 +0100 Documented QuerySet.datetimes and updated QuerySet.dates.
2013-01-20Added missing versionadded 1.6 to docs of earliest()Anssi Kääriäinen
Refs #17813
2013-01-20Fixed #17813 -- Added a .earliest() method to QuerySetNick Sandford
Thanks a lot to everybody participating in developing this feature. The patch was developed by multiple people, at least Trac aliases tonnzor, jimmysong, Fandekasp and slurms. Stylistic changes added by committer.
2013-01-11Fixed #19360 -- Raised an explicit exception for aggregates on date/time ↵Nick Sandford
fields in sqlite3 Thanks lsaffre for the report and Chris Medrela for the initial patch.
2013-01-06Fixed #19173 -- Made EmptyQuerySet a marker class onlyAnssi Kääriäinen
The guarantee that no queries will be made when accessing results is done by new EmptyWhere class which is used for query.where and having. Thanks to Simon Charette for reviewing and valuable suggestions.
2012-12-29Removed versionadded/changed annotations dating back to 1.4.Aymeric Augustin
2012-12-26Fixed broken links, round 3. refs #19516Tim Graham
2012-12-25Fixed more broken links. refs #19516Tim Graham
2012-11-22Documented behavior of get_or_create when multiple objects are returned.Tim Graham
Thanks Matt Lauber for the patch.
2012-11-18Update docs/ref/models/querysets.txtAnton Danilchenko
Fix typo: replace "can can" to "can"
2012-11-02Deprecated depth kwarg on select_related.Preston Holmes
This is the start of a deprecation path for the depth kwarg on select_related. Removing this will allow us to update select_related so it chains properly and have an API similar to prefetch_related. Thanks to Marc Tamlyn for spearheading and initial patch. refs #16855
2012-10-20Fixed #13869 - Warned that QuerySet.iterator() doesn't affect DB driver ↵Tim Graham
caching; thanks jtiai for the suggestion.
2012-10-06Fixed #17435 - Clarified that QuerySet.update returns the number of rows matchedTim Graham
2012-10-05Merge pull request #425 from Osmose/queryset_doc_typoPreston Holmes
Fixed typo in queryset docs under update method.
2012-10-05Fixed typo in queryset docs under update method.Michael Kelly
2012-09-28Fixed #18676 -- Allow fast-path deletion of objectsAnssi Kääriäinen
Objects can be fast-path deleted if there are no signals, and there are no further cascades. If fast-path is taken, the objects do not need to be loaded into memory before deletion. Thanks to Jeremy Dunck, Simon Charette and Alex Gaynor for reviewing the patch.
2012-09-20Fixed #18934 - Removed versionadded/changed annotations for Django 1.3Tim Graham
2012-09-15Clearer wording for defer docsPreston Holmes
2012-09-08Updated print statements to work with py3; thanks Claude Paroz noting this.Tim Graham
2012-09-08Fixed #17156 -- Added documentation examples for exists()Tim Graham
Thanks mrmagooey for the draft patch.
2012-09-08Avoided mixing dates and datetimes in the examples.Aymeric Augustin
Refs #16023.
2012-09-05Fixed #18904 - Typo in MySQL link; thanks Johie Anderson for the report.Tim Graham
2012-08-12Fixed #18306 -- Made deferred models issue update_fields on saveAndrei Antoukh
Deferred models now automatically update only the fields which are loaded from the db (with .only() or .defer()). In addition, any field set manually after the load is updated on save.
2012-07-17Fixed #17788 -- Added batch_size argument to qs.bulk_create()Anssi Kääriäinen
The qs.bulk_create() method did not work with large batches together with SQLite3. This commit adds a way to split the bulk into smaller batches. The default batch size is unlimited except for SQLite3 where the batch size is limited to 999 SQL parameters per batch. Thanks to everybody who participated in the discussions at Trac.
2012-07-07Removed Django 1.0-specific sections.Aymeric Augustin
2012-06-26Fixed #17485 -- Made defer work with select_relatedAnssi Kääriäinen
This commit tackles a couple of issues. First, in certain cases there were some mixups if field.attname or field.name should be deferred. Field.attname is now always used. Another issue tackled is a case where field is both deferred by .only(), and selected by select_related. This case is now an error. A lot of thanks to koniiiik (Michal Petrucha) for the patch, and to Andrei Antoukh for review.
2012-06-07Removed references to changes made in 1.2.Aymeric Augustin
Thanks Florian Apolloner for the patch.
2012-04-30Replaced print statement by print function (forward compatibility syntax).Claude Paroz
2012-04-09Fixed #17877 -- Ensured that extra WHERE clauses get correctly ANDed when ↵Julien Phalip
they contain OR operations. Thanks to Marek Brzóska for the report, to eleather for the test case and to Adrien Lemaire for the patch. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17880 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2012-03-12Edited some docs and docstrings until [17685]Adrian Holovaty
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17686 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2012-03-04Documented a limit of the SQLite backend, in relation with the bulk_create ↵Aymeric Augustin
function. Refs #17788. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17653 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2012-02-28Fixed #17668 - prefetch_related does not work in in_bulkLuke Plant
Thanks to gurets for the report, and akaariai for the initial patch. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17600 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2012-02-21Fixed a few typos in the aggregation functions reference.Aymeric Augustin
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17569 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2012-01-21Fixed #10139 -- Clarified that slicing an evaluated QuerySet returns a list, ↵Aymeric Augustin
not a QuerySet. Thanks ori for the patch. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17383 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2012-01-06Moved misplaced documentation warning note about internal QuerySet query ↵Ramiro Morales
atribute. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17342 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-12-30Edited doc changes from [17244]Adrian Holovaty
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17302 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-12-22Added support for modifying the effect of ``DISTINCT`` clauses so theyRamiro Morales
only consider some fields (PostgreSQL only). For this, the ``distinct()`` QuerySet method now accepts an optional list of model fields names and generates ``DISTINCT ON`` clauses on these cases. Thanks Jeffrey Gelens and Anssi Kääriäinen for their work. Fixes #6422. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17244 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-11-24Added warning about the performance of large IN clauses in prefetch_related docsLuke Plant
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17147 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-11-18Added support for time zones. Thanks Luke Plant for the review. Fixed #2626.Aymeric Augustin
For more information on this project, see this thread: http://groups.google.com/group/django-developers/browse_thread/thread/cf0423bbb85b1bbf git-svn-id: http://code.djangoproject.com/svn/django/trunk@17106 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-10-11Corrected a reST formatting problem in the queryset reference docs.Gabriel Hurley
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16958 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-10-10Removed use of non-standard indentation rules in docs, and the custom ↵Luke Plant
transform that supported them. Doc writers should be aware that we are now back to normal ReST rules regarding blockquotes. git-svn-id: http://code.djangoproject.com/svn/django/trunk@16955 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-10-10Fixed a bunch of ReST errors that resulted in interpretation as block quotationsLuke Plant
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16954 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-10-08Fixed some ReST errors in docs.Luke Plant
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16945 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-10-07Fixed #17003 - prefetch_related should support foreign keys/one-to-oneLuke Plant
Support for `GenericForeignKey` is also included. git-svn-id: http://code.djangoproject.com/svn/django/trunk@16939 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-10-05Fixed #16937 - added `QuerySet.prefetch_related` to prefetch many related ↵Luke Plant
objects. Many thanks to akaariai for lots of review and feedback, bug finding, additional unit tests and performance testing. git-svn-id: http://code.djangoproject.com/svn/django/trunk@16930 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-09-30Fixed doc references to `django.db.models.query.QuerySet` and converted some ↵Jannis Leidel
tabs that were introduced in r16699 to spaces. git-svn-id: http://code.djangoproject.com/svn/django/trunk@16915 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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