Ticket #11028: test11028.diff

new file tests/b11028/admin.py

@@ +1 @@
+from django.contrib import admin
+
+
+from .models import Book
+
+class BookAdmin(admin.ModelAdmin):
+    search_fields = ('authors__name',)
+
+admin.site.register(Book, BookAdmin)

new file tests/b11028/models.py

@@ +1 @@
+from django.db import models
+
+
+class Author(models.Model):
+    name = models.CharField(max_length=256)
+
+class Book(models.Model):
+    authors = models.ManyToManyField(Author)

new file tests/b11028/tests.py

@@ +1 @@
+from django.contrib import admin
+from django.contrib.admin.views.main import ALL_VAR, SEARCH_VAR, ChangeList
+from django.test import TestCase
+from django.test.client import RequestFactory
+
+from .models import Author, Book
+from .admin import BookAdmin
+
+
+class ChangeListTests(TestCase):
+    urls = "regressiontests.admin_changelist.urls"
+    def setUp(self):
+        self.factory = RequestFactory()
+
+    def test_b11028(self):
+        """
+        Negative bisect test for #11028: Searching in the admin across a Many2Many
+        relationship generated a ProgrammingError.
+
+        NOTE: soft linking this test into a regressiontests directory is required
+        """
+        author = Author.objects.create(name='Mary')
+        book = Book.objects.create()
+        book.authors.add(author)
+
+        m = BookAdmin(Book, admin.site)
+        request = self.factory.get('/book/', data={SEARCH_VAR: 'Mary'})
+
+        with self.assertRaises(Exception):
+            cl = ChangeList(request, Book, m.list_display, m.list_display_links,
+                            m.list_filter, m.date_hierarchy, m.search_fields,
+                            m.list_select_related, m.list_per_page,
+                            m.list_max_show_all, m.list_editable, m)
+