Fixed #22172 -- Allowed index_together to be a single list (rather than list of lists)..

Thanks EmilStenstrom for the suggestion.

2 files changed, 15 insertions, 1 deletions

diff --git a/tests/indexes/models.py b/tests/indexes/models.py
index e38eb005db..064a099b40 100644
--- a/tests/indexes/models.py
+++ b/tests/indexes/models.py
@@ -12,6 +12,14 @@ class Article(models.Model):
         ]
 
 
+# Model for index_together being used only with single list
+class IndexTogetherSingleList(models.Model):
+    headline = models.CharField(max_length=100)
+    pub_date = models.DateTimeField()
+
+    class Meta:
+        index_together = ["headline", "pub_date"]
+
 # Indexing a TextField on Oracle or MySQL results in index creation error.
 if connection.vendor == 'postgresql':
     class IndexedArticle(models.Model):
diff --git a/tests/indexes/tests.py b/tests/indexes/tests.py
index 605fe9037c..da93b31d87 100644
--- a/tests/indexes/tests.py
+++ b/tests/indexes/tests.py
@@ -4,7 +4,7 @@ from django.core.management.color import no_style
 from django.db import connections, DEFAULT_DB_ALIAS
 from django.test import TestCase
 
-from .models import Article
+from .models import Article, IndexTogetherSingleList
 
 
 class IndexesTests(TestCase):
@@ -13,6 +13,12 @@ class IndexesTests(TestCase):
         index_sql = connection.creation.sql_indexes_for_model(Article, no_style())
         self.assertEqual(len(index_sql), 1)
 
+    def test_index_together_single_list(self):
+        # Test for using index_together with a single list (#22172)
+        connection = connections[DEFAULT_DB_ALIAS]
+        index_sql = connection.creation.sql_indexes_for_model(IndexTogetherSingleList, no_style())
+        self.assertEqual(len(index_sql), 1)
+
     @skipUnless(connections[DEFAULT_DB_ALIAS].vendor == 'postgresql',
         "This is a postgresql-specific issue")
     def test_postgresql_text_indexes(self):