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[3.1.x] Fixed #31829 -- Used JSONField __contains lookup on key transforms.

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Backport of 2d8dcba03a from master
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sage 2020-07-26 11:54:40 +07:00 • committed by Mariusz Felisiak
parent 247bcef6b4
commit 23ce3d8491
3 changed files with 33 additions and 14 deletions
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14
docs/topics/db/queries.txt
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@ -905,10 +905,10 @@ To query for missing keys, use the ``isnull`` lookup::
The lookup examples given above implicitly use the :lookup:`exact` lookup.
Key, index, and path transforms can also be chained with:
:lookup:`contains`, :lookup:`icontains`, :lookup:`endswith`,
:lookup:`iendswith`, :lookup:`iexact`, :lookup:`regex`, :lookup:`iregex`,
:lookup:`startswith`, :lookup:`istartswith`, :lookup:`lt`, :lookup:`lte`,
:lookup:`gt`, and :lookup:`gte` lookups.
:lookup:`icontains`, :lookup:`endswith`, :lookup:`iendswith`,
:lookup:`iexact`, :lookup:`regex`, :lookup:`iregex`, :lookup:`startswith`,
:lookup:`istartswith`, :lookup:`lt`, :lookup:`lte`, :lookup:`gt`, and
:lookup:`gte`, as well as with :ref:`containment-and-key-lookups`.
.. warning::
@ -937,8 +937,10 @@ To query for missing keys, use the ``isnull`` lookup::
On PostgreSQL, if only one key or index is used, the SQL operator ``->`` is
used. If multiple operators are used then the ``#>`` operator is used.
Containment and key operations
------------------------------
.. _containment-and-key-lookups:
Containment and key lookups
---------------------------
.. fieldlookup:: jsonfield.contains