Commit Graph

130 Commits

Author SHA1 Message Date
Russell Keith-Magee 15b1675af9 Fixed #10113 -- Ensured that joined fields mentioned in order_by() are included in the GROUP_BY clause on those backends that require it. Thanks to Koen Biermans <koen.biermans@werk.belgie.be> for the report.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9788 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-24 06:53:54 +00:00
Russell Keith-Magee 0e15932be3 Fixed #10089 -- Corrected handling of aggregates when the query set contains no items (and the cursor returns None). Thanks to Kyle Fox for the report, and david for the initial patch.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9786 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-23 11:03:48 +00:00
Russell Keith-Magee ed3d2735a2 Fixed #10100 -- Corrected handling of the negation required exclude() clauses that reference aggregate columns. Thanks to Anossov for the report.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9785 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-23 07:07:51 +00:00
Russell Keith-Magee 39516803f1 Fixed #10064 -- Corrected handling of aggregate queries that also use select_related(). Thanks to olivius for the report.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9781 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-20 12:23:48 +00:00
Russell Keith-Magee cc4e4d9aee Fixed #3566 -- Added support for aggregation to the ORM. See the documentation for details on usage.
Many thanks to:
 * Nicolas Lara, who worked on this feature during the 2008 Google Summer of Code.
 * Alex Gaynor for his help debugging and fixing a number of issues.
 * Justin Bronn for his help integrating with contrib.gis.
 * Karen Tracey for her help with cross-platform testing.
 * Ian Kelly for his help testing and fixing Oracle support.
 * Malcolm Tredinnick for his invaluable review notes.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9742 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-15 11:06:34 +00:00
Malcolm Tredinnick c5bdfab9ae Fixed #9985 -- qs.values_list(...).values(...) was constructing incorrect SQL.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9717 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-08 05:49:03 +00:00
Malcolm Tredinnick d068ad0c01 Using querysets as an rvalue in filter() calls was causing an unnecessary
database query, due to a bool() call. This change stops that behaviour.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9715 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-08 05:16:21 +00:00
Malcolm Tredinnick d00c013cc8 Remove any ordering from a nested select query (in the where-clause).
This fixes r9701 for Oracle (the test introduced there did its job and failed
previously).

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9714 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-08 05:15:41 +00:00
Malcolm Tredinnick f747b61c20 Nested query support.
This extends previous functionality that allowed passing Query objects as the
rvals to filters. You can now pass QuerySets, which requires less poking at
opaque attributes. See the documentation of the "__in" lookup type for the
details.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9701 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-05 11:47:48 +00:00
Malcolm Tredinnick 062a94ef45 Reconciling where- and having-clause behaviour.
Extricated the code that works directly with SQL columns (standard
"where" stuff) from the the code that takes SQL fragments and combines
it with lookup types and values. The latter portion is now more
generally reusable. Any existing code that was poking at Query.having
will now break in very visible ways (no subtle miscalculations, which is
a good thing).

This patch, en passant, removes the existing "having" test, since the
new implementation requires more setting up than previously. The
aggregates support (currently in a separate codebase) has tests for this
functionality that work as a replacement for the removed test.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9700 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-01-05 11:47:14 +00:00
Malcolm Tredinnick a1cbeb9afb If an SQL query doesn't specify any ordering, avoid the implicit sort
that happens with MySQL when a "GROUP BY" clause is included. This is a
backend-specific operation, so any other databases requiring similar
encouragement can have a function added to their own backend code.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9637 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-12-10 05:19:27 +00:00
Malcolm Tredinnick 5570b0766d Fixed #9778 -- Added some special casing of the "Join on field 'abc'" error
message. It now gives an extra hint if there's a chance you just made a typo in
the lookup type.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9620 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-12-09 07:03:52 +00:00
Malcolm Tredinnick 33c0f0de67 This fixes a group of problems in the SQL created by QuerySet.exclude() when
used in a few situations where NULL results can appear.

Fixed #8921 (the only ticket I know of that noticed any of these).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9590 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-12-08 02:39:51 +00:00
Malcolm Tredinnick d4f0ae42a2 Fixed #9188 -- Fixed a case where we were generating syntactically invalid SQL in some exclude() queries.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9588 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-12-07 05:48:01 +00:00
Malcolm Tredinnick 3dfbaae32b Fixed #9307 -- Added the ability to pickle the Query class used by the Oracle
backend.

This allows Querysets to be cached for Oracle and should provide a model for
adding pickling support to other (external) database backends that need a
custom Query class.

Thanks to Justin Bronn for some assistance with this patch.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9272 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-10-24 09:36:22 +00:00
Malcolm Tredinnick 9319dc496c Fixed #9406 -- Ensure that each database column is only represented once in the
"ORDER BY" clause of an SQL statement.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9251 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-10-24 06:09:47 +00:00
Malcolm Tredinnick 559aca7d78 A queryset that has had ordering removed (order_by()) can have ordering added
again later (order_by('foo')). Or, at least, it can now. Thanks to Ilya
Novoselov for diagnosing the problem here.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9206 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-10-08 09:45:27 +00:00
Malcolm Tredinnick 268ef594ac Applying a limit to a queryset that already had an upper limit of 0 wasn't
working properly.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9201 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-10-08 08:37:35 +00:00
Malcolm Tredinnick 40904d0404 Fixed #9068 -- Fixed a couple of typos in InsertQuery.clone(). Thanks, rush.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9150 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-10-05 11:55:52 +00:00
Malcolm Tredinnick baa960209f Fixed Queryset.dates() in the presence of extra-select columns.
Any extra(select=...) columns can be ignored in the SQL for dates, since we are
only interested in extracting distinct date values. We were previously
including them by accident and it was generating incorrect SQL.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9091 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-28 04:36:10 +00:00
Malcolm Tredinnick 922aba3def Fixed a missing variable initialisation deep in the Query bowels.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9081 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-22 00:31:22 +00:00
Malcolm Tredinnick cfcfc456e9 Fixed a typo so that cloning UpdateQuery objects won't fail mysteriously.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9008 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-11 02:02:06 +00:00
Malcolm Tredinnick e47cc781d8 A bug from queryset-refactor days: although the Query class has "group_by" and
"having" attributes, only the former was included in the resulting SQL, meaning
subclasses had to completely duplicate Query.as_sql() if they were using any
kind of grouping filtering on the results.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9007 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-11 02:00:27 +00:00
Malcolm Tredinnick 61cc4a1eee Fixed #8819 -- Don't include two copies of extra-select columns in the query.
This was triggered by r8794, but was, in fact, fairly fragile before then. The
current fix is the correct way we should be doing this.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8898 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-03 03:48:25 +00:00
Malcolm Tredinnick 5c32fe7fad Fixed #8790 -- Multi-branch join trees that shared tables of the same name were
sometimes also sharing aliases, instead of creating their own. This was
generating incorrect SQL.

No representative test for this fix yet because I haven't had time to write one
that fits in nicely with the test suite. But it works for the monstrous example
in #8790 and a bunch of other complex examples I've created locally. Will write
a test later.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8853 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-02 13:52:07 +00:00
Malcolm Tredinnick 12f6259903 Fixed #8439 -- Complex combinations of Q-objects (using both conjunctions and
disjunctions) were producing incorrect SQL when nullable relations were
involved. This fixes that.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8832 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-02 02:16:41 +00:00
Malcolm Tredinnick 3cdfb47e93 A typo fix that fortunately wasn't creating invalid SQL, just slightly less
efficient than possible SQL in some odd cases (found via code inspection, not
any particular failing example).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8831 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-02 00:50:19 +00:00
Malcolm Tredinnick 1b615ac46d Get the join promotion code (a bit more) correct when constructing joins for ordering.
Yes, this really is a commit that fixes an oversight in a commit that fixed an
oversight. One day I'll get it right.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8829 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-02 00:20:10 +00:00
Ian Kelly 6211527fa2 Replaced exact lookups of the empty string with isnull lookups in Oracle. Fixes the testPreventDuplicateComments case.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8827 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-01 23:18:42 +00:00
Ian Kelly 5f31e9bd33 Fixed extra_select with DateQuery in Oracle
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8804 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-01 18:45:49 +00:00
Russell Keith-Magee f55b834c2f Fixed #7302: Corrected quoting of columns in extra_group_by. Thanks to Ivan Sagalaev for the patch and initial test.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8794 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-01 12:07:26 +00:00
Malcolm Tredinnick 2d7feda05c Fixed #7512 -- Fixed an oversight when I first fixed ordering on nullable
foreign keys (r7761). Thanks to George Vilches for the test case here.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8783 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-09-01 02:43:55 +00:00
Malcolm Tredinnick 4cd03ef5d9 Improvements to [8608] to fix an infinite loop (for exclude(generic_relation)).
Also comes with approximately 67% less stupidity in the table joins for
filtering on generic relations.

Fixed #5937, hopefully for good, this time.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8644 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-28 05:00:23 +00:00
Malcolm Tredinnick d70c8907cd Fixed #5937 -- When filtering on generic relations, restrict the target objects to those with the right content type.
This isn't a complete solution to this class of problem, but it will do for
1.0, which only has generic relations as a multicolumn type. A more general
multicolumn solution will be available after that release.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8608 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-27 05:22:33 +00:00
Malcolm Tredinnick 3deff41a32 Fixed #8106 -- Untangled some problems with complex select_related() queries
and models that have multiple paths to them from other models.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8559 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-25 22:43:25 +00:00
Malcolm Tredinnick d4d7bc175d Fixed #8046 -- The first filter() call on a related manager for many-to-many
fields no longer creates duplicate copies of the join table(s). Basically, this
means filters on the join table (for ManyToManyField(through=...)) and complex
filters in the normal (non-through) case don't produce incorrect or duplicate
results.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8472 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-22 22:00:28 +00:00
Malcolm Tredinnick b9407b26df Made it possible to pickle DateQuerySets.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8455 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-20 22:38:15 +00:00
Malcolm Tredinnick 556fbc78a6 Fixed #8039 -- Make sure that extra(tables=...) tables are always included in
the resulting SQL. Previously, an optimisation was removing them in some corner
cases.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8429 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-17 22:38:36 +00:00
Malcolm Tredinnick 2c4b13cbe7 Changed the (internal) way extra(select=.., select_params=...) handling is done
so that parameters stay with their select items. This means that merging and
trimming of those items is handled correctly.

Refs #7957, #7961. Fixed #8191.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8426 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-17 20:07:59 +00:00
Malcolm Tredinnick dc14b29fb3 Added the ability to force an SQL insert (or force an update) via a model's
save() method.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8267 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-09 17:19:23 +00:00
Jacob Kaplan-Moss 34a3bd5225 Major refactoring of django.dispatch with an eye towards speed. The net result is that signals are up to 90% faster.
Though some attempts and backwards-compatibility were made, speed trumped compatibility. Thus, as usual, check BackwardsIncompatibleChanges for the complete list of backwards-incompatible changes.

Thanks to Jeremy Dunck and Keith Busell for the bulk of the work; some ideas from Brian Herring's previous work (refs #4561) were incorporated.

Documentation is, sigh, still forthcoming.

Fixes #6814 and #3951 (with the new dispatch_uid argument to connect).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8223 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-06 15:32:46 +00:00
Malcolm Tredinnick 2c6d1e8ebc Fixed #7886 -- Reordered some code in Query.results_iter() to ensure that all
the prequisites are correctly initialised prior to using them. Only affects
Oracle and other db backends requiring resolve_columns() (e.g. MS SQL?)


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8112 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-27 18:38:56 +00:00
Malcolm Tredinnick 4fee39c63c Fixed #7872 -- Fixed a missed case of promoting table joins when using
disjunctive filters. Thanks to Michael Radziej for the failing test case.
problem.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8107 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-27 18:16:17 +00:00
Malcolm Tredinnick a7b556ca04 Allow for matches against unsaved objects in querysets (which will therefore
match nothing). This allows for some more straightforward code in the admin
interface.

Fixed #7488 (all the debugging there was done by Brian Rosner, who narrowed it
down to the item in this patch).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8061 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-23 06:12:15 +00:00
Malcolm Tredinnick 8745beccb1 Fixed #7813 -- Allow pickling of Query classes that use select_related().
Based on a patch from Justin Bronn.

The test in this patch most likely breaks on Oracle. That's another issue.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8053 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-22 08:23:20 +00:00
Malcolm Tredinnick 83e97ecf88 Fixed #7791 -- Fixed a really silly error I introduced in [7926]. :-(
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8052 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-22 07:37:09 +00:00
Adrian Holovaty 0894ddb2bb Fixed #7848 -- Removed a bunch of code that wasn't contributing to society. Thanks, julien
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8047 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-22 03:26:25 +00:00
Adrian Holovaty 29f0e8182f Fixed #7847 -- Removed a whole bunch of unused imports from throughout the codebase. Thanks, julien
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8046 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-22 03:24:09 +00:00
Malcolm Tredinnick 3b37c8151a Fixed #7411 -- worked around some possible transaction conflicts in SQLite.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7926 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-15 18:47:32 +00:00
Malcolm Tredinnick 52d985fac3 Fixed a bozo bug from [7885]. Fixed #7698.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7901 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-12 11:01:57 +00:00
Malcolm Tredinnick c742afb3b2 Removed a FIXME that isn't really a problem any longer.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7886 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-11 12:44:04 +00:00
Malcolm Tredinnick 2b193f6100 Fixed #7698 -- Handle '0' correctly when used as the upper bound of a slice.
Based on a patch from enoksrd.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7885 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-11 12:43:27 +00:00
Malcolm Tredinnick 6dd2b5468f Redo the changes in [7773] in a better way.
This removes some of the leaky abstraction problems (lifting WhereNode
internals into the Query class) from that commit and makes it possible for
extensions to WhereNode to have access to the field instances. It's also
backwards-compatible with pre-[7773] code, which is also better.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7835 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-04 06:42:58 +00:00
Malcolm Tredinnick 4fd359253d Modified [7760] to not include a "col is not NULL" fragment for non-nullable fields.
This avoids any use of "pk is not NULL" fragment, which behave inconsistently
in MySQL. Thanks to Russell Keith-Magee for diagnosing the problem and
suggesting the easy fix.

Refs #7076.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7812 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-07-01 10:12:50 +00:00
Malcolm Tredinnick 5da47e43c7 Fixed #7314 -- Changed the way extra() bits are handled when QuerySets are merged.
Also added a section to the documentation to indicate why it's probably not a
good idea to rely on this feature for complex stuff. Garbage in, garbage out
applies even to Django code.

Thanks to erik for the test case for this one.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7791 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-30 06:24:21 +00:00
Malcolm Tredinnick f62e5a1fba A way better fix for the count() issue in [7787].
The first attempt was brain-damaged. Let's never speak of it again.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7788 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-29 23:47:31 +00:00
Malcolm Tredinnick 18d89cc1f7 Fixed #7323 -- Fixed a count() edge-case.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7787 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-29 11:50:04 +00:00
Malcolm Tredinnick 050d0a1b75 Fixed #7371 -- Fixed an edge case when ordering on related models.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7786 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-29 11:15:48 +00:00
Malcolm Tredinnick 5326cd293e Factored out a semi-complex if-test that was used in two places.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7782 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-29 09:40:17 +00:00
Malcolm Tredinnick a8fa3fd81f Fixed #7246 -- Pull in the all the necessary data when using select_related() with multi-table inheritance.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7781 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-29 09:39:32 +00:00
Malcolm Tredinnick bb2182453b Fixed handling of multiple fields in a model pointing to the same related model.
Thanks to ElliotM, mk and oyvind for some excellent test cases for this. Fixed #7110, #7125.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7778 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-29 02:36:18 +00:00
Malcolm Tredinnick 8aec66f144 Removed a dead line that was left in [7773] by accident.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7774 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-27 03:48:11 +00:00
Malcolm Tredinnick ade4a1246c Reorganised the internals of the Where node a bit to fix some copying problems.
We no longer store any reference to Django field instances or models in the
Where node. This should improve cloning speed, fix some pickling difficulties,
reduce memory usage and remove some infinite loop possibilities in odd cases.
Slightly backwards incompatible if you're writing custom filters. See the
BackwardsIncompatibleChanges wiki page for details.

Fixed #7128, #7204, #7506.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7773 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-27 03:27:20 +00:00
Malcolm Tredinnick 279fc8599b Fixed #7105 -- Fixed dates() queries in light of model inheritance.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7763 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-26 07:51:19 +00:00
Malcolm Tredinnick ba015e0a79 Fixed #7181 -- when ordering by a potentially NULL field, use a left-outer join
so that the ordering doesn't accidentally restrict the result set.

(Ironically, one existing test actually showed this problem, but I was too
dumb to notice the result was incorrect.)


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7761 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-26 06:50:22 +00:00
Malcolm Tredinnick e41df5adcc Fixed #7076 -- Include NULL values when excluding non-NULL items.
Based on a patch from emulbreh.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7760 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-26 05:34:26 +00:00
Malcolm Tredinnick 588eeb356c Fixed a problem when constructing complex select_related() calls.
Avoids joining with the wrong tables when connecting select_related() tables to
the main query. This also leads to slightly more efficient (meaning less tables
are joined) SQL queries in some other cases, too. Some unnecessary tables are
now trimmed that were not previously.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7741 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-26 01:02:11 +00:00
Malcolm Tredinnick 1834428648 Fixed a problem with values() and values_list() queries and nullable joins.
Previously, if we were querying across a nullable join and then a non-nullable
one, the second join would not be a LEFT OUTER join, which would exclude
certain valid results from the result set.

This is the same problem as [7597] but for values() field specifications, so
this covers the second case where Django adds extra stuff to the select-clause.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7740 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-26 01:01:21 +00:00
Gary Wilson Jr 0b8fafc7f1 Fixed #7387 - Fixed circular import problem when importing `contrib.contenttypes.generic` module.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7635 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-15 04:49:29 +00:00
Adrian Holovaty a08b2dd328 Negligible comment typo fixes
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7620 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-12 03:37:13 +00:00
Jacob Kaplan-Moss 31d9dc07aa Fixed #7369: fixed a corner-case involving select_related() following non-null FKs after null ones. Thanks, George Vilches
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7597 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-06-08 18:13:46 +00:00
Ian Kelly db6bab5cb3 Fixed an Oracle error on double negations in where conditions. Fixed #7111
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7509 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-29 20:55:10 +00:00
Adrian Holovaty 14d6ee2dc9 Changed Query.get_columns() to quote the 'AS' column names in an extra_select situation, to match pre-queryset-refactor behavior. Added unit tests that verify this and provide an example
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7502 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 21:15:05 +00:00
Malcolm Tredinnick a97f690e5d Added the ability to pickle and unpickle QuerySets and Query classes.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7499 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 14:14:41 +00:00
Malcolm Tredinnick ba010ec1c0 Made some types of nested update queries very slightly more efficient at the
database level. Also worked around the fact that MySQL (and maybe other
backends we don't know about) cannot select from the table they're updating.

Fixed #7095.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7496 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 11:51:52 +00:00
Malcolm Tredinnick e07a457c00 Fixed #7096 -- The simplifications in [7461] weren't complete. They broke
multi-component exclude() calls. Fixed that.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7493 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 04:29:06 +00:00
Malcolm Tredinnick 356dfd5308 Fixed #7098 -- Old-style related-model order_by() syntax was being incorrectly
marked as erroneous. It's just more dangerous and risky, not forbidden. This
commit restores backwards compatibility there.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7490 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 02:27:19 +00:00
Adrian Holovaty 81edb50cac Migrated _setup_query() docstring to America
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7488 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 00:58:42 +00:00
Adrian Holovaty d649d0f5f8 Fixed #7097 -- dates() queries now work as expected with select_related() -- that is, select_related() has no effect on the query. Thanks for reporting, Marco
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7486 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-28 00:20:40 +00:00
Malcolm Tredinnick 9c52d56f6f Merged the queryset-refactor branch into trunk.
This is a big internal change, but mostly backwards compatible with existing
code. Also adds a couple of new features.

Fixed #245, #1050, #1656, #1801, #2076, #2091, #2150, #2253, #2306, #2400, #2430, #2482, #2496, #2676, #2737, #2874, #2902, #2939, #3037, #3141, #3288, #3440, #3592, #3739, #4088, #4260, #4289, #4306, #4358, #4464, #4510, #4858, #5012, #5020, #5261, #5295, #5321, #5324, #5325, #5555, #5707, #5796, #5817, #5987, #6018, #6074, #6088, #6154, #6177, #6180, #6203, #6658


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7477 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-04-27 02:50:16 +00:00