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Code Issues 32 Releases Wiki Activity

Fixed #34480 -- Fixed crash of annotations with Chr().

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This commit is contained in:
Jacob Walls 2023-04-10 16:30:08 -04:00 committed by Mariusz Felisiak
parent 3b4728310a
commit c3d7a71f83
2 changed files with 12 additions and 1 deletions
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1
django/db/models/functions/text.py
View File

@ -42,6 +42,7 @@ class PostgreSQLSHAMixin:
class Chr(Transform): class Chr(Transform):
function = "CHR" function = "CHR"
lookup_name = "chr" lookup_name = "chr"
output_field = CharField()
def as_mysql(self, compiler, connection, **extra_context): def as_mysql(self, compiler, connection, **extra_context):
return super().as_sql( return super().as_sql(

12
tests/db_functions/text/test_chr.py
View File

@ -1,4 +1,4 @@
from django.db.models import IntegerField from django.db.models import F, IntegerField
from django.db.models.functions import Chr, Left, Ord from django.db.models.functions import Chr, Left, Ord
from django.test import TestCase from django.test import TestCase
from django.test.utils import register_lookup from django.test.utils import register_lookup
@ -37,3 +37,13 @@ class ChrTests(TestCase):
authors.exclude(name_code_point__chr=Chr(ord("J"))), authors.exclude(name_code_point__chr=Chr(ord("J"))),
[self.elena, self.rhonda], [self.elena, self.rhonda],
) )
def test_annotate(self):
authors = Author.objects.annotate(
first_initial=Left("name", 1),
initial_chr=Chr(ord("J")),
)
self.assertSequenceEqual(
authors.filter(first_initial=F("initial_chr")),
[self.john],
)