mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-07-09 22:35:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

Fixed #16055 -- Fixed crash when filtering against char/text GenericRelation relation on PostgreSQL.

Browse source
This commit is contained in:
David Wobrock 2023-04-18 10:19:06 +02:00 • committed by Mariusz Felisiak
parent 594fcc2b74
commit 9bbf97bcdb
11 changed files with 117 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

32
tests/backends/postgresql/test_operations.py
View file

@ -2,9 +2,11 @@ import unittest
from django.core.management.color import no_style
from django.db import connection
from django.db.models.expressions import Col
from django.db.models.functions import Cast
from django.test import SimpleTestCase
from ..models import Person, Tag
from ..models import Author, Book, Person, Tag
@unittest.skipUnless(connection.vendor == "postgresql", "PostgreSQL tests.")
@ -48,3 +50,31 @@ class PostgreSQLOperationsTests(SimpleTestCase):
),
['TRUNCATE "backends_person", "backends_tag" RESTART IDENTITY CASCADE;'],
)
def test_prepare_join_on_clause_same_type(self):
author_table = Author._meta.db_table
author_id_field = Author._meta.get_field("id")
lhs_expr, rhs_expr = connection.ops.prepare_join_on_clause(
author_table,
author_id_field,
author_table,
author_id_field,
)
self.assertEqual(lhs_expr, Col(author_table, author_id_field))
self.assertEqual(rhs_expr, Col(author_table, author_id_field))
def test_prepare_join_on_clause_different_types(self):
author_table = Author._meta.db_table
author_id_field = Author._meta.get_field("id")
book_table = Book._meta.db_table
book_fk_field = Book._meta.get_field("author")
lhs_expr, rhs_expr = connection.ops.prepare_join_on_clause(
author_table,
author_id_field,
book_table,
book_fk_field,
)
self.assertEqual(lhs_expr, Col(author_table, author_id_field))
self.assertEqual(
rhs_expr, Cast(Col(book_table, book_fk_field), author_id_field)
)