Fixed #26304 -- Ignored unmanaged through model in table introspection.

2 files changed, 14 insertions, 1 deletions

diff --git a/tests/introspection/models.py b/tests/introspection/models.py
index 4d961b20be..f989709e79 100644
--- a/tests/introspection/models.py
+++ b/tests/introspection/models.py
@@ -45,6 +45,7 @@ class Article(models.Model):
     body = models.TextField(default='')
     reporter = models.ForeignKey(Reporter, models.CASCADE)
     response_to = models.ForeignKey('self', models.SET_NULL, null=True)
+    unmanaged_reporters = models.ManyToManyField(Reporter, through='ArticleReporter')
 
     def __str__(self):
         return self.headline
@@ -54,3 +55,11 @@ class Article(models.Model):
         index_together = [
             ["headline", "pub_date"],
         ]
+
+
+class ArticleReporter(models.Model):
+    article = models.ForeignKey(Article, models.CASCADE)
+    reporter = models.ForeignKey(Reporter, models.CASCADE)
+
+    class Meta:
+        managed = False
diff --git a/tests/introspection/tests.py b/tests/introspection/tests.py
index 9ce5a3f0f6..949914ddbf 100644
--- a/tests/introspection/tests.py
+++ b/tests/introspection/tests.py
@@ -6,7 +6,7 @@ from django.db import connection
 from django.db.utils import DatabaseError
 from django.test import TransactionTestCase, mock, skipUnlessDBFeature
 
-from .models import Article, City, Reporter
+from .models import Article, ArticleReporter, City, Reporter
 
 
 class IntrospectionTests(TransactionTestCase):
@@ -53,6 +53,10 @@ class IntrospectionTests(TransactionTestCase):
         self.assertNotIn('introspection_article_view',
                          connection.introspection.table_names())
 
+    def test_unmanaged_through_model(self):
+        tables = connection.introspection.django_table_names()
+        self.assertNotIn(ArticleReporter._meta.db_table, tables)
+
     def test_installed_models(self):
         tables = [Article._meta.db_table, Reporter._meta.db_table]
         models = connection.introspection.installed_models(tables)