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Author SHA1 Message Date
Nick Pope 9dff316be4 Refs #32948, Refs #32946 -- Used Q.create() internally for dynamic Q() objects. 
Node.create() which has a compatible signature with Node.__init__()
takes in a single `children` argument rather than relying in unpacking
*args in Q.__init__() which calls Node.__init__().

In addition, we were often needing to unpack iterables into *args and
can instead pass a list direct to Node.create().
 2022-07-27 10:06:24 +02:00
Nick Pope 845667f2d1 Refs #32948 -- Simplified and optimized Q._combine() and __invert__(). 
- Removed use of Q.deconstruct() in Q._combine().
- Simplified and optimized Q.__invert__() by taking a shallow copy and
  swapping the negated attribute only.
- Simplified construction in Q._combine().
- Simplified conditions in Q._combine() as Q.conditional = True the
  first isinstance() check is unnecessary.
- Removed copy.copy() branch in Q._combine().

Co-authored-by: Keryn Knight <keryn@kerynknight.com>
 2022-07-27 10:06:24 +02:00
Nick Pope 19b866c254 Refs #32948 -- Added Node.__copy__(). 
This allows the copy.copy() usage in the Q._combine() method to finish
sooner, instead of having to fallback to using the __reduce_ex__(4)
method.

Thia also avoids having to fall into copy.copy() at in Q._combine(),
when combining a Q() with another Q().

Co-authored-by: Keryn Knight <keryn@kerynknight.com>
 2022-07-27 10:06:24 +02:00
Nick Pope ed9eca8457 Refs #32948 -- Simplified WhereNode and Node.__deepcopy__()/add(). 
We can use copy() in Node.add() instead of create() as we don't need the
children to be cloned via [:] subscript in __init__().
 2022-07-27 10:06:24 +02:00
Nick Pope ddf0002bb7 Refs #32948 -- Renamed Node._new_instance() to Node.create(). 
Node._new_instance() was added in
6dd2b5468f to work around Q.__init__()
having an incompatible signature with Node.__init__().

It was intended as a hook that could be overridden if subclasses needed
to change the behaviour of instantiation of their specialised form of
Node. In practice this doesn't ever seem to have been used for this
purpose and there are very few calls to Node._new_instance() with other
code, e.g. Node.__deepcopy__() calling Node and overriding __class__ as
required.

Rename this to Node.create() to make it a more "official" piece of
private API that we can use to simplify a lot of other areas internally.

The docstring and nearby comment have been reworded to read more
clearly.
 2022-07-27 10:06:24 +02:00
Nick Pope 4f8bc75bc3 Removed obsolete docstring from WhereNode.clone(). 
Node.subtree_parents was removed in
d3f00bd570. That commit also added
Q.clone() which was identical to WhereNode.clone(), but lacked the
docstring. Q.clone() was later removed in
b454e2cbc9.
 2022-07-27 07:55:09 +02:00
Nick Pope 769d7cce4a Used AND, OR, XOR constants instead of hard-coded values. 2022-07-27 07:55:09 +02:00
Mariusz Felisiak 66f30dbf25 Refs #27236 -- Reverted "Refs #27236 -- Refactored out DeprecationForHistoricalMigrationMixin." 
This reverts commit 57793b4765.
 2022-07-26 11:41:19 +02:00
Mariusz Felisiak f810325721
Refs #27236 -- Made cosmetic edits to Meta.index_together deprecation. 
This should make it more straightforward to move forward when
deprecation ends.
 2022-07-21 07:05:50 +02:00
David Wobrock a6385b382e
Fixed #27236 -- Deprecated Meta.index_together in favor of Meta.indexes. 
This also deprecates AlterIndexTogether migration operation.
 2022-07-12 09:04:31 +02:00
Stéphane "Twidi" Angel ccbf714ebe Fixed #33829 -- Made BaseConstraint.deconstruct() and equality handle violation_error_message. 
Regression in 667105877e.
 2022-07-08 08:17:42 +02:00
David Wobrock 57793b4765 Refs #27236 -- Refactored out DeprecationForHistoricalMigrationMixin. 2022-07-07 12:21:35 +02:00
Simon Charette 877c800f25 Refs CVE-2022-34265 -- Properly escaped Extract() and Trunc() parameters. 
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
 2022-07-06 07:40:07 +02:00
Mariusz Felisiak 54eb8a374d Fixed CVE-2022-34265 -- Protected Trunc(kind)/Extract(lookup_name) against SQL injection. 
Thanks Takuto Yoshikai (Aeye Security Lab) for the report.
 2022-07-04 08:13:41 +02:00
Ipakeev 425718726b
Fixed #33816 -- Fixed QuerySet.only() after select_related() crash on proxy models. 2022-07-04 06:37:36 +02:00
Mariusz Felisiak c48b34e26d Refs #32786 -- Made query clear ordering when ordered combined queryset is used in subquery on Oracle. 2022-06-27 06:21:31 +02:00
Mariusz Felisiak 44ffd8d06f Fixed #33796 -- Fixed ordered combined queryset crash when used in subquery on PostgreSQL and MySQL. 
Thanks Shai Berger for the report.

Regression in 30a0144134.
 2022-06-27 06:21:31 +02:00
DhruvaPatil98 c627226d05 Fixed #33799, Refs #31685 -- Added parameters for updating conflicts to QuerySeta.abulk_create(). 2022-06-23 11:12:35 +02:00
David Wobrock 3ef37a5245 Fixed #28897 -- Fixed QuerySet.update() on querysets ordered by annotations. 2022-06-17 10:06:17 +02:00
Pablo Pissi d287294885 Fixed #33772 -- Added QuerySet.first()/last() error message on unordered queryset with aggregation. 2022-06-14 12:24:43 +02:00
Ebram Shehata 4996eaa7b5
Made QuerySet.bulk_update() raise an error when batch_size is zero. 2022-06-13 06:25:25 +02:00
kshivakumar 46efd03d26 Fixed #33733 -- Preserved wrapper assignment for manager methods. 2022-06-01 10:44:34 +02:00
Allen Jonathan David 1058fc7023 Fixed #33191 -- Avoided clearing cached reference when saving child after parent. 
Thanks Barry Johnson for the report.
 2022-05-31 10:19:54 +02:00
David Wobrock 9f55489529 Fixed #33705 -- Fixed crash when using IsNull() lookup in filters. 
Thanks Florian Apolloner for the report.
Thanks Simon Charette for the review.
 2022-05-19 07:02:22 +02:00
Mariusz Felisiak 4286378a08 Updated source translation catalogs. 
Forward port of d1f1a0168a from
stable/4.1.x.
 2022-05-17 14:17:07 +02:00
非法操作 19dc3f0f96 Fixed typo in Query.clone()'s docstring. 2022-05-13 06:56:20 +02:00
Mariusz Felisiak 68da6b389c
Fixed #33543 -- Deprecated passing nulls_first/nulls_last=False to OrderBy and Expression.asc()/desc(). 
Thanks Allen Jonathan David for the initial patch.
 2022-05-12 11:30:03 +02:00
Ed Rivas 2798c937de Fixed #29538 -- Fixed crash of ordering by related fields when Meta.ordering contains expressions. 
Thanks Simon Charette for the review.
 2022-05-12 07:19:16 +02:00
Gagaro 667105877e Fixed #30581 -- Added support for Meta.constraints validation. 
Thanks Simon Charette, Keryn Knight, and Mariusz Felisiak for reviews.
 2022-05-10 11:22:23 +02:00
Gagaro 5d91dc8ee3 Refs #30581 -- Added Q.check() hook. 2022-05-04 08:47:52 +02:00
Simon Charette 1109e66990
Refs #33646 -- Reduced sync_to_async hops on async QuerySet iteration. 
Until we add support for truly asynchronous database backends it's
actually detrimental to have complete set retrieval require multiple
hops between sync and async emulated contexts via asgiref.

By defaulting to sending the whole sync _fetch_all() to the current
context thread pool we reduce unncessary work when dealing with large
result sets since the queryset cannot be iterated anyway before all
results are retrieved and cached.
 2022-05-04 08:31:59 +02:00
Gagaro 9d04711261 Refs #30581 -- Added Q.flatten(). 2022-05-03 15:31:53 +02:00
Mariusz Felisiak 271a8e73ee Refs #33646 -- Made QuerySet.raw() async-compatible. 2022-05-02 10:52:33 +02:00
Mariusz Felisiak 77926176b2 Refs #33646 -- Added RawModelIterable. 2022-05-02 10:52:33 +02:00
David Wobrock aca9bb2a12 Fixed #33413 -- Made migrations propage collations to related fields. 2022-05-02 08:13:38 +02:00
David Wobrock 87da283338 Refs #33413 -- Added collation to CharField/TextField's db_parameters. 2022-04-29 06:30:15 +02:00
Andrew Godwin 58b27e0dbb Fixed #33646 -- Added async-compatible interface to QuerySet. 
Thanks Simon Charette for reviews.

Co-authored-by: Carlton Gibson <carlton.gibson@noumenal.es>
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
 2022-04-26 20:25:23 +02:00
marcperrinoptel 4282fd468f Fixed #33655 -- Removed unnecessary constant from GROUP BY clause for QuerySet.exists(). 2022-04-26 06:19:18 +02:00
Hannes Ljungberg ed0a2c3238
Removed unnecessary variable in Index.create_sql(). 
Unnecessary since fdfb3086fc.
 2022-04-22 19:07:56 +02:00
Collin Anderson 0de89b6f8d
Refs #31223 -- Added __class_getitem__() to ForeignKey. 2022-04-22 14:13:12 +02:00
sarahboyce cd4da34fc1 Fixed #33004 -- Made saving objects with unsaved GenericForeignKey raise ValueError. 
This aligns to the behaviour of OneToOneField and ForeignKey fields.

Thanks Jonny Park for the initial patch.
 2022-04-21 10:12:28 +02:00
Mariusz Felisiak f4f2afeb45
Refs #32226 -- Fixed JSON format of QuerySet.explain() on PostgreSQL when format is uppercased. 
Follow up to aba9c2de66.
 2022-04-19 08:24:24 +02:00
Mariusz Felisiak a0bd006306
Made select_for_update() don't raise TransactionManagementError on databases that don't support transactions. 2022-04-14 07:53:15 +02:00
Mariusz Felisiak fdfb3086fc Fixed DatabaseFeatures.supports_index_column_ordering and related tests with MyISAM storage engine. 2022-04-13 11:56:24 +02:00
David Smith 856b528801
Removed unnecessary tuple call in SQLInsertCompiler. 2022-04-13 08:10:52 +02:00
mgaligniana 0ad5316f22 Fixed #24296 -- Made QuerySet.exists() clear selected columns for not sliced distinct querysets. 2022-04-12 08:18:22 +02:00
Himanshu-Balasamanta 06ebaa9e28 Fixed #33626 -- Cleared cache when unregistering a lookup. 2022-04-12 06:24:02 +02:00
Mariusz Felisiak 6723a26e59 Fixed CVE-2022-28347 -- Protected QuerySet.explain(**options) against SQL injection on PostgreSQL. 2022-04-11 08:59:58 +02:00
Mariusz Felisiak 93cae5cb2f Fixed CVE-2022-28346 -- Protected QuerySet.annotate(), aggregate(), and extra() against SQL injection in column aliases. 
Thanks Splunk team: Preston Elder, Jacob Davis, Jacob Moore,
Matt Hanson, David Briggs, and a security researcher: Danylo Dmytriiev
(DDV_UA) for the report.
 2022-04-11 08:59:33 +02:00
Simon Charette 0b31e02487 Fixed #33618 -- Fixed MTI updates outside of primary key chain. 2022-04-07 07:54:56 +02:00