Commit Graph

2697 Commits

Author SHA1 Message Date
Anatol Ulrich 8ed6788aa4 Fixed #30821 -- Added ExtractIsoWeekYear database function and iso_week_day lookup. 2019-10-02 10:41:34 +02:00
ElizabethU 54ea290e5b Fixed #30651 -- Made __eq__() methods return NotImplemented for not implemented comparisons.
Changed __eq__ to return NotImplemented instead of False if compared to
an object of the same type, as is recommended by the Python data model
reference. Now these models can be compared to ANY (or other objects
with __eq__ overwritten) without returning False automatically.
2019-10-01 17:58:19 +02:00
Hasan Ramezani 95a11578ce Fixed #30798 -- Fixed Meta.ordering validation for pk of related fields.
Regression in 440505cb2c.
2019-09-27 14:22:31 +02:00
Hasan Ramezani c7944628a1 Refs #30798 -- Prevented chaining fields from the same related model multiple times in model Meta.ordering. 2019-09-27 13:57:22 +02:00
Mads Jensen 129583a0d3 Removed some outdated backwards compatibility imports and misleading comments.
EmptyResultSet moved in 46509cf13d.
FieldDoesNotExist moved in 8958170755.
BoundField and pretty_name moved in 8550161e53.
EMPTY_VALUES moved in 471596fc1a.
BaseRunserverCommand moved in 5c53e30607.
2019-09-24 15:18:53 +02:00
Mariusz Felisiak 01104368ff Refs #29444 -- Removed redundant DatabaseFeatures.can_return_multiple_columns_from_insert.
Unnecessary since b31e63879e.
2019-09-24 10:37:22 +02:00
Johannes Hoppe b31e63879e Fixed #29444 -- Allowed returning multiple fields from INSERT statements on Oracle. 2019-09-24 10:22:43 +02:00
Simon Charette 37f8f29377 Fixed #30796 -- Prevented select_related() from mutating a queryset on chaining.
Thanks Darren Maki for the report.
2019-09-24 09:17:45 +02:00
Hasan Ramezani f97bbad908 Fixed #13296 -- Fixed ordering by Options.order_with_respect_to after deleting objects.
Thanks Simon Meers for the original patch.
2019-09-23 11:20:37 +02:00
Ian Foote d9881a025c Fixed #29915 -- Added support for values with hyphens to pattern lookups for UUIDField on backends without UUID datatype.
Support hyphens in iexact, contains, icontains, startswith, istartswith,
endswith and iendswith UUIDField filters on backends without UUID
datatype.
2019-09-23 08:24:08 +02:00
James Timmins 0719edcd5f Fixed #30771 -- Fixed exact lookup against queries with selected columns.
Use pre-existing select fields (and thereby GROUP BY fields) from
subquery if they were specified, instead of always defaulting to pk.

Thanks Aur Saraf for the report and Simon Charette for guidance.
2019-09-20 10:42:14 +02:00
Mariusz Felisiak 0ddb4ebf7b Refs #14357 -- Made Meta.ordering not affect GROUP BY queries.
Per deprecation timeline.
2019-09-10 12:01:00 +02:00
Simon Charette 34decdebf1 Fixed #30754 -- Prevented inclusion of aliases in partial index conditions.
SQLite doesn't repoint table aliases in partial index conditions on table
rename which breaks the documented table alteration procedure.

Thanks Pēteris Caune for the report.
2019-09-10 10:03:16 +02:00
Vojtech Bocek b1d37fea8f Fixed #28107 -- Added DatabaseFeatures.allows_group_by_selected_pks_on_model() to allow enabling optimization for unmanaged models. 2019-09-09 14:04:46 +02:00
Johannes Hoppe 7254f1138d Refs #29444 -- Allowed returning multiple fields from INSERT statements on PostgreSQL.
Thanks Florian Apolloner, Tim Graham, Simon Charette, Nick Pope, and
Mariusz Felisiak for reviews.
2019-09-09 10:51:14 +02:00
Nick Pope b6251956b6 Fixed #30757 -- Added a system check to ensure max_length fits the longest choice. 2019-09-09 10:28:18 +02:00
Shai Berger 72ebe85a26 Fixed #27910 -- Added enumeration helpers for use in Field.choices.
These classes can serve as a base class for user enums, supporting
translatable human-readable names, or names automatically inferred
from the enum member name.

Additional properties make it easy to access the list of names, values
and display labels.

Thanks to the following for ideas and reviews:

Carlton Gibson, Fran Hrženjak, Ian Foote, Mariusz Felisiak, Shai Berger.

Co-authored-by: Shai Berger <shai@platonix.com>
Co-authored-by: Nick Pope <nick.pope@flightdataservices.com>
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
2019-09-04 14:42:49 +02:00
Simon Charette 13a8884a08 Fixed #30739 -- Fixed exclusion of multi-valued lookup against outer rhs.
OuterRef right hand sides have to be nested, just like F rhs have to,
during the subquery pushdown split_exclude performs to ensure they are
resolved against the outer query aliases.
2019-09-02 10:52:36 +02:00
Simon Charette 600628f8f0 Refs #28442 -- Adjusted related lookups handling of expression rhs.
Expressions should never be prepared as other Lookup.get_prep_lookup
implementations hint at by returning early on the presence of the
resolve_expression attribute.

The previous solution was only handling lookups against related fields
pointing at AutoFields and would break for foreign keys to other fields.

It was also causing bidirectional coupling between model fields and
expressions which the method level import of OuterRef was a symptom of.
2019-09-02 10:52:36 +02:00
Mariusz Felisiak d275fd04f3
Refs #25367 -- Simplified OrderBy and Lookup by using Case() instead of RawSQL() on Oracle.
Follow up to efa1908f66.
2019-08-29 11:56:12 +02:00
Matthew Schinckel 4137fc2efc Fixed #25367 -- Allowed boolean expressions in QuerySet.filter() and exclude().
This allows using expressions that have an output_field that is a
BooleanField to be used directly in a queryset filters, or in the
When() clauses of a Case() expression.

Thanks Josh Smeaton, Tim Graham, Simon Charette, Mariusz Felisiak, and
Adam Johnson for reviews.

Co-Authored-By: NyanKiyoshi <hello@vanille.bid>
2019-08-29 09:45:29 +02:00
Andrew Brown 691def10a0 Fixed #30727 -- Made Subquery pickle without evaluating their QuerySet.
Subquery expression objects, when pickled, were evaluating the QuerySet
objects saved in its _constructor_args attribute.
2019-08-27 13:05:20 +02:00
Mads Jensen 85ac838d9e Fixed #21039 -- Added AddIndexConcurrently/RemoveIndexConcurrently operations for PostgreSQL.
Thanks to Simon Charettes for review.

Co-Authored-By: Daniel Tao <daniel.tao@gmail.com>
2019-08-21 13:10:06 +02:00
Nick Pope 21e559495b Fixed #29979, Refs #17337 -- Extracted AutoField field logic into a mixin and refactored AutoFields.
This reduces duplication by allowing AutoField, BigAutoField and
SmallAutoField to inherit from IntegerField, BigIntegerField and
SmallIntegerField respectively. Doing so also allows for enabling the
max_length warning check and minimum/maximum value validation for auto
fields, as well as providing a mixin that can be used for other possible
future auto field types such as a theoretical UUIDAutoField.
2019-08-20 09:22:25 +02:00
Hasan Ramezani 85458e94e3 Fixed #29260 -- Skipped an UPDATE when adding a model instance with primary key that has a default. 2019-08-19 13:28:35 +02:00
Claude Paroz d1c2e6dd04 Refs #28428 -- Made FileField.upload_to support pathlib.Path. 2019-08-18 20:34:58 +02:00
Simon Charette 8b4a43dda7 Fixed #29545 -- Fixed using filter lookups againts nested subquery expressions.
Made sql.Where resolve lhs of its child nodes. This is necessary to
allow filter lookups against nested subquery expressions to properly
resolve their OuterRefs to Cols.

Thanks Oskar Persson for the simplified test case.
2019-08-17 11:24:35 +02:00
Andrew Brown 8a281aa7fe Fixed #30687 -- Fixed using of OuterRef() expressions in distance lookups. 2019-08-16 06:50:33 +02:00
zeyneloz 00035672a4 Fixed #30449 -- Fixed RelatedFieldListFilter/RelatedOnlyFieldListFilter to respect model's Meta.ordering.
Regression in 6d4e5feb79.

Co-Authored-By: Mariusz Felisiak <felisiak.mariusz@gmail.com>
2019-08-15 10:29:05 +02:00
Mads Jensen 0b8d911d28 Optimized Field.deconstruct() by using elif. 2019-08-14 10:50:31 +02:00
Simon Charette efa1908f66 Refs #25367 -- Moved Oracle Exists() handling to contextual methods.
Oracle requires the EXISTS expression to be wrapped in a CASE WHEN in
the following cases.

1. When part of a SELECT clause.
2. When part of a ORDER BY clause.
3. When compared against another expression in the WHERE clause.

This commit moves the systematic CASE WHEN wrapping of Exists.as_oracle
to contextual .select_format, Lookup.as_oracle, and OrderBy.as_oracle
methods in order to avoid unnecessary wrapping.
2019-08-13 06:48:14 +02:00
Simon Charette fff5186d32 Refs #25367 -- Moved select_format hook to BaseExpression.
This will expose an intermediary hook for expressions that need special
formatting when used in a SELECT clause.
2019-08-13 06:48:14 +02:00
Simon Charette 088a6fab1c Refs #24793 -- Removed bogus connection argument from SQLCompiler.compile() calls.
The method doesn't expect a connection object to be passed as its second
argument.
2019-08-12 07:47:55 +02:00
Simon Charette 8b3e1b6e9e Refs #11964 -- Made constraint support check respect required_db_features.
This will notably silence the warnings issued when running the test
suite on MySQL.
2019-08-12 06:44:37 +02:00
Diederik van der Boor 25f21bd237 Fixed #28393 -- Added helpful error messages for invalid AutoField/FloatField/IntegerField values.
Co-authored-by: Diederik van der Boor <vdboor@edoburu.nl>
Co-authored-by: Nick Pope <nick.pope@flightdataservices.com>
2019-08-05 08:41:29 +02:00
aaktsipetrov 4edad1ddf6 Fixed #30668 -- Made QuerySet.filter() raise NotSupportedError if any of source expressions is not filterable. 2019-08-02 15:06:00 +02:00
Nick Pope 194d1dfc18 Fixed #30661 -- Added models.SmallAutoField. 2019-08-02 11:39:01 +02:00
Étienne Beaulé 5f24e7158e Fixed #30665 -- Added support for distinct argument to Avg() and Sum(). 2019-07-31 11:22:50 +02:00
Jon Dufresne 4122d9d3f1 Refs #28147 -- Fixed setting of OneToOne and Foreign Key fields to None when using attnames.
Regression in 519016e5f2.
2019-07-27 12:04:56 +02:00
Mariusz Felisiak 806ba19bbf
Added Query.is_sliced property.
Previously, we used Query.can_filter() mainly to check if a query is
sliced what was confusing.
2019-07-25 20:45:55 +02:00
Hasan Ramezani 1853383969 Fixed #27995 -- Added error messages on unsupported operations following union(), intersection(), and difference(). 2019-07-25 12:39:55 +02:00
Jon Dufresne 5ed20b3aa3 Fixed #30657 -- Allowed customizing Field's descriptors with a descriptor_class attribute.
Allows model fields to override the descriptor class used on the model
instance attribute.
2019-07-25 08:15:20 +02:00
Jon Dufresne 93ffa81bc5 Refs #30657 -- Made DeferredAttribute.__init__() to take a field instance instead of a field name. 2019-07-25 07:24:52 +02:00
Jon Dufresne d89053585e Improved error message when index in __getitem__() is invalid. 2019-07-23 20:12:08 +02:00
Jon Dufresne 60dc957a82 Removed unnecessary code in Model.__init__().
As is_related_object is True, the val variable is unused for the
remainder of the method.

Unnecessary since 53da1e4794.
2019-07-23 07:45:07 +02:00
Hasan Ramezani 402e6d292f Fixed #30602 -- Made Extract raise ValueError when using unsupported lookups for DurationField. 2019-07-12 08:08:35 +02:00
Mariusz Felisiak 7a42cfcfdc
Refs #30557 -- Fixed crash of ordering by ptr fields when Meta.ordering contains F() expressions.
Thanks Can Sarıgöl for the report.

Follow up to 8c5f9906c5.
2019-07-11 13:40:36 +02:00
Hasan Ramezani 8c5f9906c5 Fixed #30557 -- Fixed crash of ordering by ptr fields when Meta.ordering contains expressions. 2019-07-11 11:24:59 +02:00
can 52545e788d Fixed #28289 -- Fixed crash of RawSQL annotations on inherited model fields. 2019-07-11 08:27:15 +02:00
Simon Charette ee6e93ec87 Fixed #30628 -- Adjusted expression identity to differentiate bound fields.
Expressions referring to different bound fields should not be
considered equal.

Thanks Julien Enselme for the detailed report.

Regression in bc7e288ca9.
2019-07-10 07:46:08 +02:00
can febe136d4c Fixed #30397 -- Added app_label/class interpolation for names of indexes and constraints. 2019-07-08 14:57:56 +02:00
Johannes Hoppe bc91f27a86 Refs #29444 -- Added support for fetching a returned non-integer insert values on Oracle.
This is currently not actively used, since the ORM will ask the
SQL compiler to only return auto fields.
2019-07-08 08:53:08 +02:00
can 53209f7830 Fixed #30613 -- Moved index name validation to system checks. 2019-07-05 09:30:21 +02:00
Jon Dufresne 42b9a23267 Fixed #30400 -- Improved typography of user facing strings.
Thanks Claude Paroz for assistance with translations.
2019-06-28 16:46:18 +02:00
can f03b7bd114 Fixed #28408 -- Added error message when updating with annotated expressions on joined fields.
Co-Authored-By: Simon Charette <charette.s@gmail.com>
2019-06-28 07:55:32 +02:00
can 325d5d6445 Fixed #30477 -- Made reverse lookup use Field.get_db_prep_value() from the target field. 2019-06-25 10:20:33 +02:00
Nadège Michel 87b1ad6e73 Fixed #30421 -- Allowed symmetrical intermediate table for self-referential ManyToManyField. 2019-06-21 15:03:17 +02:00
can 2cbd3967e0 Fixed #29834 -- Fixed column mismatch crash with QuerySet.values()/values_list() and order_by() on combined querysets. 2019-06-19 12:11:28 +02:00
Mariusz Felisiak 14d026cccb
Fixed #30572 -- Prevented values()/values_list() on combined queryset from mutating the list of columns in querysets. 2019-06-19 10:44:53 +02:00
CruxBox 34f8eeea4a Fixed #30548 -- Improved exception when expression contains mixed types. 2019-06-10 19:48:53 +02:00
Étienne Beaulé 4b6dfe1622 Fixed #30542 -- Fixed crash of numerical aggregations with filter.
Filters in annotations crashed when used with numerical-type
aggregations (i.e. Avg, StdDev, and Variance). This was caused as the
source expressions no not necessarily have an output_field (such as the
filter field), which lead to an AttributeError: 'WhereNode' object has
no attribute output_field.

Thanks to Chuan-Zheng Lee for the report.

Regression in c690afb873 and two following
commits.
2019-06-05 08:06:26 +02:00
Mariusz Felisiak f6075fb333 Fixed #26192 -- Fixed crash of ordering by constants on PostgreSQL.
Thanks Simon Charette for the review.
2019-05-31 07:38:48 +02:00
葛汉斌 fcbc502af9 Simplified Model.save() a bit. 2019-05-28 15:40:31 +02:00
Mariusz Felisiak f8b8b00f01
Fixed #30501 -- Preventing QuerySet.reverse() from mutating expressions in QuerySet.order_by and Meta.ordering. 2019-05-23 20:33:37 +02:00
Rob 519016e5f2 Fixed #28147 -- Fixed loss of assigned parent when saving child after parent.
Thanks Erwin Junge for the initial patch.
2019-05-21 10:11:22 +02:00
Simon Charette 514104cf23 Refs #29396, #30494 -- Reduced code duplication in year lookups. 2019-05-21 07:25:09 +02:00
Simon Charette 2b582a7b84 Fixed #29396 -- Added indirect values support to __year lookups.
Thanks Windson Yang for the initial patch.
2019-05-21 07:12:33 +02:00
Simon Charette 4d1420947e Fixed #30494 -- Disabled __year lookup optimization for indirect values.
The previous heuristics were naively enabling the BETWEEN optimization on
successful cast of the first rhs SQL params to an integer while it was
not appropriate for a lot of database resolved expressions.

Thanks Alexey Chernov for the report.
2019-05-21 07:11:26 +02:00
ruchit2801 04042b2b44 Fixed #30463 -- Fixed crash of deprecation message when Meta.ordering contains expressions.
Regression in 1b1f64ee5a.
2019-05-18 19:29:00 +02:00
Iain Watts 59ffafa1d2 Fixed #30482 -- Prevented unnecessary evaluation of lookup.queryset in prefetch_related_objects(). 2019-05-16 21:39:55 +02:00
Rob c231a75112 Fixed #30436 -- Added check that on_delete is callable in ForeignKey and OneToOneField. 2019-05-13 07:25:42 +02:00
Amir Hadi 330638b89f Fixed #6785 -- Made QuerySet.get() fetch a limited number of rows.
Co-authored-by: Tim Graham <timograham@gmail.com>
Co-authored-by: Patryk Zawadzki <patrys@room-303.com>
Co-Authored-By: Mariusz Felisiak <felisiak.mariusz@gmail.com>
2019-05-12 07:05:24 +02:00
Rob 6b736dd074 Fixed #30349 -- Fixed QuerySet.exclude() on FilteredRelation.
Using annotated FilteredRelations raised a FieldError when coupled with
exclude(). This is due to not passing filtered relation fields to the
subquery created in split_exclude(). We fixed this issue by passing the
filtered relation data to the newly created subquery.

Secondly, in the case where an INNER JOIN is used in the excluded
subquery, the ORM would trim the filtered relation INNER JOIN in attempt
to simplify the query. This will also remove the ON clause filters
generated by the FilteredRelation. We added logic to not trim the INNER
JOIN if it is from FilteredRelation.
2019-05-07 14:47:50 +02:00
Tobias Kunze a44a21a22f Fixed #26678 -- Doc'd that RelatedManager.add()/remove()/set() accepts the field the relation points to. 2019-05-07 08:55:45 +02:00
Stephen Brown 86a3ad351e Fixed #30339 -- Made Model.delete(keep_parents=True) preserves nested parent reverse relationships.
Thanks Simon Charette for the review.
2019-05-06 13:04:31 +02:00
can 567b9928a3 Fixed #29692 -- Fixed removing ordering parts for multiline RawSQL expressions. 2019-05-03 07:37:37 +02:00
Mykola Kokalko ef082ebb84 Fixed #29529 -- Allowed models.fields.FilePathField to accept a callable path. 2019-05-02 11:11:56 +02:00
zeyneloz 6485a5f450 Fixed #30409 -- Allowed using foreign key's attnames in unique/index_together and Index's fields. 2019-05-01 11:51:27 +02:00
can 719b746620 Fixed #30412 -- Fixed crash when adding check constraints with OR'ed condition on Oracle and SQLite. 2019-04-30 12:32:27 +02:00
Jon Dufresne dbe436a9a9 Simplified Field.contribute_to_class(). 2019-04-29 07:54:32 +02:00
can c00b4dbda2 Fixed #29810 -- Fixed crash of select_related() on FilteredRelation with empty result. 2019-04-23 13:48:33 +02:00
Scott Fitsimones a14c0fda15 Fixed #30328 -- Fixed crash of IntegerField.validators when limit_value in a custom validator is callable. 2019-04-19 07:58:27 +02:00
Ramiro Morales aed89adad5 Fixed #30367 -- Changed "pip install" to "python -m pip install" in docs, comments and hints. 2019-04-18 14:41:15 +02:00
Ville Skyttä 03db5fddfd Fixed typos in docs, comments, and exception messages. 2019-04-18 09:33:53 +02:00
can d87bd29c4f Fixed #30335, #29139 -- Fixed crash when ordering or aggregating over a nested JSONField key transform. 2019-04-18 07:16:50 +02:00
Simon Charette f110de5c04
Fixed #30191 -- Selected only referenced fields during cascade deletion.
The non-referenced fields can only be deferred if no deletion signals
receivers are connected for their respective model as connected as these
receivers might expect all fields of the deleted model to be present.

Thanks Ed Morley for the report.
2019-04-17 13:41:23 +02:00
Simon Charette 26c4be2ebe Refs #18676 -- Enabled fast-delete for m2m_changed senders.
There's no reason to disable fast-delete when an intermediary
many-to-many model has connected m2m_changed receivers because the
signal is only sent when related manager's clear() and remove() methods
are directly called.

This must have been overlooked in 1cd6e04cd4
given no regression tests fail when m2m_changed is not taken into
consideration to determine if fast-delete can be enabled.
2019-04-17 13:24:31 +02:00
Vinny Do a4055adf70 Fixed #30368 -- Fixed prefetch_related() for GenericForeignKey when PK is also a FK. 2019-04-16 09:49:16 +02:00
Simon Charette 0cb4062482 Refs #23758 -- Used RecursionError instead of RuntimeError to raise nested subquery errors.
RecursionError was introduced in Python 3.5 and subclasses RuntimeError.
2019-04-15 15:20:41 +02:00
Simon Charette c0969ee227 Refs #27149 -- Based recursive nested subquery detection on sys.getrecursionlimit().
This makes sure the test_avoid_infinite_loop_on_too_many_subqueries test
doesn't fail on systems with a non-default recursion limit.
2019-04-15 15:20:41 +02:00
Mariusz Felisiak 5f7991c42c Fixed #30325 -- Reverted "Fixed #29725 -- Removed unnecessary join in QuerySet.count() and exists() on a many-to-many relation."
This reverts commit 1299421cad due to
a regression with custom managers.
2019-04-15 12:02:26 +02:00
Mariusz Felisiak 1afbc96a75
Fixed #30343 -- Fixed prefetch_related() for GenericForeignKey when PK of related field is UUIDField. 2019-04-14 10:02:59 +02:00
Florian Apolloner afc708cf6d
Fixed #30330 -- Fixed setting of primary key to None during fast-delete.
Regression in bc7dd8490b.
2019-04-08 21:14:00 +02:00
David Beitey 8bdb12c1d3 Fixed typo in django/db/models/query_utils.py comment. 2019-04-03 08:18:54 +02:00
Mariusz Felisiak 2a431db0f5
Fixed #28621 -- Fixed crash of annotations with OuterRef. 2019-03-27 08:24:05 +01:00
Hasan Ramezani 981dd6dd71
Fixed #28431 -- Added a system check for BinaryField to prevent strings defaults.
Thanks Claude Paroz for the initial patch.
2019-03-25 20:04:35 +01:00
Simon Charette 1ca825e4dc Fixed #30246 -- Reused annotation aliases references in aggregation filters.
Thanks Jan Baryła for the detailed report and the reduced test case.
2019-03-23 10:11:45 -04:00
Simon Charette 3f32154f40 Refs #30188 -- Avoided GROUP BY when aggregating over non-aggregates. 2019-03-23 10:11:41 -04:00
Simon Charette d1e9c25162 Refs #30188 -- Prevented double annotation of subquery when aggregated over.
Thanks Can Sarıgöl for the suggested trimming approach.
2019-03-23 09:50:42 -04:00
Simon Charette bdc07f176e Fixed #30188 -- Fixed a crash when aggregating over a subquery annotation. 2019-03-23 09:48:31 -04:00
Simon Charette f19a4945e1 Fixed #21703 -- Fixed a crash when excluding a related field with a F(). 2019-03-23 09:48:28 -04:00
Matthias Kestenholz ea071870f9 Fixed #30280 -- Restored Model.get_FIELD_display()'s coercion of lazy strings.
Reverted cc79c7ee63.
2019-03-22 12:30:10 -04:00
Nick Pope d26b242443
Fixed #30271 -- Added the Sign database function. 2019-03-22 12:52:39 +01:00
Simon Charette 5935a9aead Removed obsolete Lookup hook to prepare rhs expressions.
After 3a505c70e7, all _prepare() methods
return self.
2019-03-21 20:54:21 -04:00
Simon Charette 3a505c70e7 Refs #27149, #29542 -- Simplified subquery parentheses wrapping logic. 2019-03-21 20:42:26 -04:00
Simon Charette 3543129822 Refs #27149 -- Moved subquery expression resolving to Query.
This makes Subquery a thin wrapper over Query and makes sure it respects
the Expression source expression API by accepting the same number of
expressions as it returns. Refs #30188.

It also makes OuterRef usable in Query without Subquery wrapping. This
should allow Query's internals to more easily perform subquery push downs
during split_exclude(). Refs #21703.
2019-03-21 20:36:31 -04:00
Simon Charette 96b6ad94d9 Refs #27149 -- Made Subquery store Query instead of Queryset.
Subquery only uses Query.
2019-03-21 20:02:51 -04:00
Simon Charette fb3f034f1c Fixed #30158 -- Avoided unnecessary subquery group by on aggregation.
Subquery annotations can be omitted from the GROUP BY clause on aggregation
as long as they are not explicitly grouped against.

Thanks Jonny Fuller for the report.
2019-03-21 18:48:41 -04:00
Simon Charette 9dc367dc10 Refs #30158 -- Added alias argument to Expression.get_group_by_cols(). 2019-03-21 18:47:46 -04:00
Nick Pope 0b70985f42 Fixed #30240 -- Added SHA1, SHA224, SHA256, SHA384, and SHA512 database functions.
Thanks Mariusz Felisiak and Tim Graham for reviews.
2019-03-20 19:30:43 +01:00
Matt Westcott 58ad030d05 Fixed #30254 -- Allowed model metaclasses to access the attribute dict in __init__().
Regression in a68ea23101.
2019-03-14 21:05:23 -04:00
ahbk d527639804 Fixed #29754 -- Added is_dst parameter to Trunc database functions. 2019-03-07 10:02:18 -05:00
avas9366 9681e968eb Fixed #30232 -- Corrected expected format in invalid DurationField error message. 2019-03-04 19:25:27 -05:00
Mariusz Felisiak f69c7bbdce
Refs #29408 -- Cosmetic edits for validation of related fields and lookups in model Meta.ordering.
Follow up to 440505cb2c.
2019-03-01 19:38:21 +01:00
Hasan Ramezani 440505cb2c Fixed #29408 -- Added validation of related fields and lookups in model Meta.ordering. 2019-03-01 17:09:33 +01:00
Simon Charette de7f6b51b2 Refs #19544 -- Added a fast path for through additions if supported.
The single query insertion path is taken if the backend supports inserts
that ignore conflicts and m2m_changed signals don't have to be sent.
2019-02-21 10:20:47 -05:00
Simon Charette 28712d8acf Refs #19544 -- Ignored auto-created through additions conflicts if supported.
This prevents IntegrityError caused by race conditions between missing ids
retrieval and bulk insertions.
2019-02-21 10:20:47 -05:00
Simon Charette dd32f9a3a2 Refs #19544 -- Extracted ManyRelatedManager.add() missing ids logic to a method. 2019-02-21 10:20:47 -05:00
Mariusz Felisiak 9ff18c08c3
Refs #28643 -- Added MD5 database function.
Thanks Tim Graham, Nick Pope and Simon Charette for reviews.
2019-02-21 10:52:51 +01:00
Hasan Ramezani 741ce81a42 Fixed #29619 -- Added field names to some FieldErrors. 2019-02-14 18:58:08 -05:00
Dan Davis 2bd8df243a Fixed #30184 -- Removed ellipsis characters from shell output strings.
Partially reverted 50b8493581 (refs #29654)
to avoid a crash when the user shell doesn't support non-ASCII characters.
2019-02-13 13:59:44 -05:00
Simon Charette 64d5bafbc6 Fixed #30027 -- Errored out on Window function usage if unsupported. 2019-02-09 08:47:41 -05:00
Sergey Fedoseev eefc9550fd Simplified Window.as_sql(). 2019-02-09 08:41:35 -05:00
Nick Pope 24b82cd201 Fixed #30159 -- Removed unneeded use of OrderedDict.
Dicts preserve order since Python 3.6.
2019-02-06 13:48:39 -05:00
Tim Graham d47498c5df Fixed #30156 -- Dropped support for SpatiaLite 4.1 and 4.2. 2019-02-04 13:16:38 -05:00
Johannes Hoppe b131f9c79f Refs #29444 -- Renamed DatabaseFeatures.can_return_id* to be generic for other columns. 2019-01-30 15:31:56 -05:00
Joshua Cannon 16a5a2a2c8 Fixed #30076 -- Added Model.get_FOO_display() even if field's choices are empty. 2019-01-30 13:44:10 -05:00
Mariusz Felisiak 5a5c77d55d
Fixed E117 and F405 flake8 warnings. 2019-01-30 13:06:09 +01:00
Jon Dufresne 7e3bf2662b Removed default mode='r' argument from calls to open(). 2019-01-27 17:41:43 -05:00
Simon Charette 8d2dcc47cd Fixed #30106 -- Made order_with_respect_to updates use QuerySet.bulk_update(). 2019-01-21 17:02:20 -05:00
Simon Charette 65858119d2 Fixed #30120 -- Fixed invalid SQL in distinct aggregate.
Regression in bc05547cd8 (refs #28658).
2019-01-21 09:24:32 -05:00
Tim Graham da1de1615c Refs #28750 -- Removed suppport for model Meta.manager_inheritance_from_future. 2019-01-17 11:15:27 -05:00
Tim Graham 1fecde6be9 Refs #11557 -- Removed the field_name keyword argument to QuerySet.earliest() and latest().
Per deprecation timeline.
2019-01-17 10:52:19 -05:00
Tim Graham da5eb3d56c Refs #28370 -- Removed support for the context arg of Field.from_db_value() and Expression.convert_value().
Per deprecation timeline.
2019-01-17 10:52:19 -05:00
Simon Charette 9e5e5a657b Fixed #30044 -- Raised a FieldError on inherited field update attempts. 2019-01-16 14:09:51 -05:00
Simon Charette dbcf2ffa77 Refs #9475 -- Simplified dictionary unpacking. 2019-01-16 09:20:15 -05:00
Nick Pope d212bc03ba Refs #9475 -- Fixed typo, used unpacking generalization, and made through_defaults kwarg-only. 2019-01-15 13:03:08 -05:00
Collin Anderson 769355c765 Fixed #9475 -- Allowed RelatedManager.add(), create(), etc. for m2m with a through model. 2019-01-15 11:12:17 -05:00
Nasir Hussain f021c110d0 Fixed #30099 -- Fixed invalid SQL when filtering a Subquery by an aggregate. 2019-01-15 07:22:59 -05:00
Jon Dufresne ad7aa02c1d Removed unnecessary string formatting of strings. 2019-01-14 21:04:00 -05:00
Nick Pope 846624ed08 Refs #28643 -- Extracted DurationField logic for Avg() and Sum() into mixin.
Also addresses Sum() not handling the filter option correctly.
2019-01-14 14:39:57 -05:00
Nick Pope 6d4efa8e6a Refs #28643 -- Changed Variance() to use NumericOutputFieldMixin.
Keeps precision instead of forcing DecimalField to FloatField.
2019-01-14 14:39:46 -05:00
Nick Pope e85afa5943 Refs #28643 -- Changed StdDev() to use NumericOutputFieldMixin.
Keeps precision instead of forcing DecimalField to FloatField.
2019-01-14 14:38:00 -05:00
Nick Pope c690afb873 Refs #28643 -- Changed Avg() to use NumericOutputFieldMixin.
Keeps precision instead of forcing DecimalField to FloatField.
2019-01-14 14:35:41 -05:00
Nick Pope 3d5e0f8394 Refs #28643 -- Moved db function mixins to a separate module. 2019-01-14 14:26:46 -05:00
Nick Pope 7f1577d1ef Avoided calling as_oracle() for SQLite in Left database function. 2019-01-14 13:02:58 -05:00
Nick Pope ae65eed68d Corrected comment in TruncTime database function. 2019-01-14 13:02:58 -05:00
Nick Pope 0d7ba0ff8b Simplified overriding source expressions in some database functions. 2019-01-14 13:02:58 -05:00
Sergey Fedoseev b86bb47818 Fixed #30093 -- Fixed ordering of combined queryset ordered by F expressions. 2019-01-14 10:28:11 -05:00
Nick Pope abf8e390a4 Refs #28643 -- Added Reverse database function.
Thanks Mariusz Felisiak for Oracle advice and review.
2019-01-12 10:45:48 -05:00
Paveł Tyślacki b69f8eb04c Fixed #30062 -- Added support for unique conditional constraints. 2019-01-12 09:50:20 -05:00
Paveł Tyślacki 1e837c4b23 Used None as the empty value for condition in Index's SQL construction. 2019-01-12 09:34:10 -05:00
Tim Graham 8f4eee1777
Moved django.db.migrations.writer.SettingsReference to django.conf.
Reduces the possibility of circular imports.
2019-01-11 15:28:22 -05:00
Mads Jensen 4b9d72210f Refs #28643 -- Added NullIf database function.
Thanks Nick Pope, Mariusz Felisiak, and Tim Graham for reviews.
2019-01-10 12:10:12 -05:00
Simon Charette bc05547cd8 Fixed #28658 -- Added DISTINCT handling to the Aggregate class. 2019-01-09 17:52:36 -05:00
Nick Pope 99b3ab2781 Simplified some imports for database functions.
Used more specific modules to reduce the risk of circular imports.
2019-01-08 19:21:31 -05:00
Tim Graham 0004daa536
Used 4 space hanging indent for dictionaries.
Thanks Mariusz Felisiak for auditing.
2019-01-02 18:18:19 -05:00
Paveł Tyślacki 0123b67f6b Fixed #30060 -- Moved SQL generation for indexes and constraints to SchemaEditor. 2019-01-01 09:39:58 -05:00
Tim Graham 100b8dd163
Renamed QuerySet.earliest()/latest() helper method. 2018-12-30 11:43:39 -05:00
Mariusz Felisiak dd8ed64113
Fixed #29851 -- Fixed crash of annotations with window expressions in Subquery. 2018-12-27 20:21:57 +01:00
Sergey Fedoseev a68ea23101 Fixed #29970, #30041 -- Made ModelBase.__new__() pass attrs without contribute_to_class() to type.__new__(). 2018-12-22 18:11:24 -05:00
Mariusz Felisiak f9a33e3c3f Fixed #29932 -- Fixed combining compound queries with sub-compound queries on SQLite and Oracle. 2018-12-06 15:31:33 -05:00
Simon Charette 53269bcaaf Fixed #30011 -- Fixed queries that reuse filtered aggregates.
Thanks Taqi Abbas and Raphael Kimmig for the report.
2018-12-06 14:55:35 -05:00
Nick Pope c3bbf1fd4c Refs #28643 -- Skipped ATan2() workaround on SpatiaLite 5+. 2018-11-30 13:59:05 -05:00
Prabakaran Kumaresshan 0d724ce916 Fixed #30001 -- Marked UUIDField.description for translation. 2018-11-30 11:23:17 -05:00
Nick Pope c512912463 Refs #23801 -- Made integer field max_length warning show correct field type. 2018-11-23 14:40:46 -05:00
Nick Pope 856ba1ec86 Removed redundant BigIntegerField.empty_strings_allowed (already inherited). 2018-11-23 14:22:58 -05:00
Tom Forbes 31408446b3 Fixed #29974 -- Fixed non-truthy primary key values for QuerySet.bulk_update(). 2018-11-21 22:58:43 -05:00
Mariusz Felisiak d5f4ce9849
Fixed #29949 -- Refactored db introspection identifier converters.
Removed DatabaseIntrospection.table_name_converter()/column_name_converter()
and use instead DatabaseIntrospection.identifier_converter().

Removed DatabaseFeatures.uppercases_column_names.

Thanks Tim Graham for the initial patch and review and Simon Charette
for the review.
2018-11-21 09:06:50 +01:00
Simon Charette 0cf85e6b07 Refs #29908 -- Optimized known related objects assignment.
Since CPython implements a C level attrgetter(*attrs) it even outperforms the
most common case of a single known related object since the resulting attribute
values tuple is built in C.
2018-11-17 18:56:11 -05:00
Ian Foote e1fc07c047 Fixed #17930 -- Allowed ORing (|) with sliced QuerySets. 2018-11-15 09:43:58 -05:00
Hasan Ramezani 6d4e5feb79 Fixed #29835 -- Made RelatedFieldListFilter respect ModelAdmin.ordering. 2018-11-14 14:29:39 -05:00
Simon Charette db13bca60a Fixed #29641 -- Added support for unique constraints in Meta.constraints.
This constraint is similar to Meta.unique_together but also allows
specifying a name.

Co-authored-by: Ian Foote <python@ian.feete.org>
2018-11-13 17:57:27 -05:00
Simon Charette dba4a634ba Refs #29641 -- Refactored database schema constraint creation.
Added a test for constraint names in the database.

Updated SQLite introspection to use sqlparse to allow reading the
constraint name for table check and unique constraints.

Co-authored-by: Ian Foote <python@ian.feete.org>
2018-11-13 15:25:44 -05:00
Simon Charette 75dfa92a05 Fixed #29908 -- Fixed setting of foreign key after related set access if ForeignKey uses to_field.
Adjusted known related objects handling of target fields which relies on
from and to_fields and has the side effect of fixing a bug bug causing
N+1 queries when using reverse foreign objects.

Thanks Carsten Fuchs for the report.
2018-11-08 19:51:15 -05:00
Mads Jensen a906c98982 Fixed #29547 -- Added support for partial indexes.
Thanks to Ian Foote, Mariusz Felisiak, Simon Charettes, and
Markus Holtermann for comments and feedback.
2018-10-29 19:34:54 -04:00
Tim Graham f77fc56c96
Fixed #29896 -- Fixed incorrect Model.save() cache relation clearing for foreign keys that use to_field.
Regression in ee49306176.
2018-10-28 22:54:02 -04:00
Sanyam Khurana 83c7096f2a Fixed #29869 -- Made UUIDField.to_python() convert integers. 2018-10-24 20:26:57 -04:00
Simon Charette 5e3463f6bc Fixed #27595 -- Made ForeignKey.get_col() follow target chains.
Previously, foreign relationships were followed only one level deep which
prevents foreign keys to foreign keys from being resolved appropriately.
This was causing issues such as improper database value conversion for
UUIDField on SQLite because the resolved expression's output field's
internal type wasn't correct. Added tests to make sure unlikely foreign
reference cycles don't cause recursion errors.

Refs #24343.

Thanks oyooyo for the report and Wayne Merry for the investigation.
2018-10-22 09:49:34 -04:00
aspalding 834c4ec8e4 Moved make_hashable() to django.utils and added tests. 2018-10-17 11:17:23 -04:00
Florian Apolloner bc7dd8490b Fixed #21171 -- Avoided starting a transaction when a single (or atomic queries) are executed.
Checked the following locations:

 * Model.save(): If there are parents involved, take the safe way and use
   transactions since this should be an all or nothing operation.

   If the model has no parents:

    * Signals are executed before and after the previous existing
      transaction -- they were never been part of the transaction.

    * if `force_insert` is set then only one query is executed -> atomic
      by definition and no transaction needed.

    * same applies to `force_update`.

    * If a primary key is set and no `force_*` is set Django will try an
      UPDATE and if that returns zero rows it tries an INSERT. The first
      case is completly save (single query). In the second case a
      transaction should not produce different results since the update
      query is basically a no-op then (might miss something though).

 * QuerySet.update(): no signals issued, single query -> no transaction
   needed.

 * Model/Collector.delete(): This one is fun due to the fact that is
   does many things at once.

   Most importantly though: It does send signals as part of the
   transaction, so for maximum backwards compatibility we need to be
   conservative.

   To ensure maximum compatibility the transaction here is removed only
   if the following holds true:

     * A single instance is being deleted.
     * There are no signal handlers attached to that instance.
     * There are no deletions/updates to cascade.
     * There are no parents which also need deletion.
2018-10-17 12:19:02 +02:00
oliver 1299421cad Fixed #29725 -- Removed unnecessary join in QuerySet.count() and exists() on a many-to-many relation. 2018-10-15 11:01:57 -04:00
Jon Dufresne 1e87c9fe71 Replaced kwargs.pop() with keyword-only arguments. 2018-10-08 15:06:02 -04:00
Jon Dufresne 2ba588e773 Refs #27795 -- Removed force_text() usage in db/models/sql/query.py. 2018-10-08 14:47:01 -04:00
Simon Charette bc7e288ca9 Fixed #29745 -- Based Expression equality on detailed initialization signature.
The old implementation considered objects initialized with an equivalent
signature different if some arguments were provided positionally instead of
as keyword arguments.

Refs #11964, #26167.
2018-10-02 19:15:20 -04:00
Simon Charette 24dc7d8940 Refs #29641 -- Extracted reusable CheckConstraint logic into a base class. 2018-10-02 13:11:18 -04:00
Simon Charette 9142bebff2 Refs #11964 -- Changed CheckConstraint() signature to use keyword-only arguments.
Also renamed the `constraint` argument to `check` to better represent which
part of the constraint the provided `Q` object represents.
2018-10-02 10:53:04 -04:00
Jon Dufresne 0bf7b25f8f Added django.db.backends.utils.names_digest() to remove redundant code. 2018-10-02 10:41:43 -04:00
Abhinav Patil bf01994a5c Fixed #29804 -- Added 'did you mean' suggestions for unsupported lookup error. 2018-10-01 19:03:10 -04:00
Claude Paroz fc3a463048 Fixed #29767 -- Made date-related casts work on SQLite
Thanks Rémy Hubscher for the report and Tim Graham and Simon Charette for the reviews.
2018-10-01 13:27:30 +02:00
Sergey Fedoseev 8ef8bc0f64 Refs #28909 -- Simplifed code using unpacking generalizations. 2018-09-28 09:57:12 -04:00
Jon Dufresne 8c3e0eb1c1 Normalized spelling of "lowercase" and "lowercased". 2018-09-25 10:30:18 -04:00
Tom Forbes 9cbdb44014 Fixed #23646 -- Added QuerySet.bulk_update() to efficiently update many models. 2018-09-18 16:14:44 -04:00
Ramiro Morales 1b1f64ee5a Refs #14357 -- Deprecated Meta.ordering affecting GROUP BY queries.
Thanks Ramiro Morales for contributing to the patch.
2018-09-13 12:29:48 -04:00
Srinivas Reddy Thatiparthy 34d6bceec4 Fixed #29500 -- Fixed SQLite function crashes on null values.
Co-authored-by: Srinivas Reddy Thatiparthy <thatiparthysreenivas@gmail.com>
Co-authored-by: Nick Pope <nick.pope@flightdataservices.com>
2018-09-10 15:08:55 -04:00
Alexander Holmbäck f315d0423a Fixed #29727 -- Made nonexistent joins in F() raise FieldError.
Regression in 2162f0983d.
2018-09-08 09:40:33 -04:00
Jon Dufresne cc79c7ee63 Refs #27795 -- Removed force_text() in Model._get_FIELD_display(). 2018-08-31 10:59:57 -04:00
Mariusz Felisiak 39461a83c3
Fixed #29694 -- Fixed column mismatch crash with QuerySet.values() or values_list() after combining querysets with extra() with union(), difference(), or intersection().
Regression in 0b66c3b442.
2018-08-29 10:00:15 +02:00
Jon Dufresne 90f3ef332b Refs #27795 -- Removed force_bytes()/smart_text() from model fields. 2018-08-28 07:56:18 -04:00
priyanshsaxena 83b04d4f88 Fixed #29048 -- Added **extra_context to database function as_vendor() methods. 2018-08-23 11:52:09 -04:00