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Fixed #30704 -- Fixed crash of JSONField nested key and index transfo…

…rms on expressions with params.

Thanks Florian Apolloner for the report and helping with tests.
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felixxm committed Aug 13, 2019
1 parent efa1908 commit c19ad2da4b573431843e5cead77f4139e29c77a0
Showing with 21 additions and 2 deletions.
  1. +1 −1 django/contrib/postgres/fields/
  2. +20 −1 tests/postgres_tests/
@@ -107,7 +107,7 @@ def as_sql(self, compiler, connection):
previous = previous.lhs
lhs, params = compiler.compile(previous)
if len(key_transforms) > 1:
return "(%s %s %%s)" % (lhs, self.nested_operator), [key_transforms] + params
return '(%s %s %%s)' % (lhs, self.nested_operator), params + [key_transforms]
lookup = int(self.key_name)
except ValueError:
@@ -6,7 +6,9 @@
from django.core import checks, exceptions, serializers
from django.core.serializers.json import DjangoJSONEncoder
from django.db import connection
from django.db.models import Count, Q
from django.db.models import Count, F, Q
from django.db.models.expressions import RawSQL
from django.db.models.functions import Cast
from django.forms import CharField, Form, widgets
from django.test.utils import CaptureQueriesContext, isolate_apps
from django.utils.html import escape
@@ -186,6 +188,23 @@ def test_ordering_grouping_by_key_transform(self):
operator.itemgetter('key', 'count'),

def test_nested_key_transform_raw_expression(self):
expr = RawSQL('%s::jsonb', ['{"x": {"y": "bar"}}'])
JSONModel.objects.filter(field__foo=KeyTransform('y', KeyTransform('x', expr))),

def test_nested_key_transform_expression(self):
key=KeyTransform('d', 'field'),
chain=KeyTransform('f', KeyTransform('1', 'key')),
expr=KeyTransform('f', KeyTransform('1', Cast('key', JSONField()))),

def test_deep_values(self):
query = JSONModel.objects.values_list('field__k__l')

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