Fixed #27236 -- Deprecated Meta.index_together in favor of Meta.indexes.

This also deprecates AlterIndexTogether migration operation.

6 files changed, 42 insertions, 0 deletions

diff --git a/tests/check_framework/migrations_test_apps/__init__.py b/tests/check_framework/migrations_test_apps/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/check_framework/migrations_test_apps/__init__.py
diff --git a/tests/check_framework/migrations_test_apps/index_together_app/__init__.py b/tests/check_framework/migrations_test_apps/index_together_app/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/check_framework/migrations_test_apps/index_together_app/__init__.py
diff --git a/tests/check_framework/migrations_test_apps/index_together_app/apps.py b/tests/check_framework/migrations_test_apps/index_together_app/apps.py
new file mode 100644
index 0000000000..3bb7170897
--- /dev/null
+++ b/tests/check_framework/migrations_test_apps/index_together_app/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class IndexTogetherAppConfig(AppConfig):
+    name = "check_framework.migrations_test_apps.index_together_app"
diff --git a/tests/check_framework/migrations_test_apps/index_together_app/migrations/0001_initial.py b/tests/check_framework/migrations_test_apps/index_together_app/migrations/0001_initial.py
new file mode 100644
index 0000000000..c642ee6c57
--- /dev/null
+++ b/tests/check_framework/migrations_test_apps/index_together_app/migrations/0001_initial.py
@@ -0,0 +1,16 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    operations = [
+        migrations.CreateModel(
+            "SimpleModel",
+            [
+                ("field", models.IntegerField()),
+            ],
+        ),
+        migrations.AlterIndexTogether("SimpleModel", index_together=(("id", "field"),)),
+    ]
diff --git a/tests/check_framework/migrations_test_apps/index_together_app/migrations/__init__.py b/tests/check_framework/migrations_test_apps/index_together_app/migrations/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/check_framework/migrations_test_apps/index_together_app/migrations/__init__.py
diff --git a/tests/check_framework/test_migrations.py b/tests/check_framework/test_migrations.py
index 0b00690e77..e41a68fa54 100644
--- a/tests/check_framework/test_migrations.py
+++ b/tests/check_framework/test_migrations.py
@@ -1,7 +1,11 @@
+from unittest.mock import ANY
+
 from django.core import checks
+from django.core.checks.migrations import check_migration_operations
 from django.db import migrations
 from django.db.migrations.operations.base import Operation
 from django.test import TestCase
+from django.test.utils import override_settings
 
 
 class DeprecatedMigrationOperationTests(TestCase):
@@ -50,6 +54,23 @@ class DeprecatedMigrationOperationTests(TestCase):
             ],
         )
 
+    @override_settings(
+        INSTALLED_APPS=["check_framework.migrations_test_apps.index_together_app"]
+    )
+    def tests_check_alter_index_together(self):
+        errors = check_migration_operations()
+        self.assertEqual(
+            errors,
+            [
+                checks.Warning(
+                    "AlterIndexTogether is deprecated. Support for it (except in "
+                    "historical migrations) will be removed in Django 5.1.",
+                    obj=ANY,
+                    id="migrations.W001",
+                )
+            ],
+        )
+
 
 class RemovedMigrationOperationTests(TestCase):
     def test_default_operation(self):