Fixed #24774 -- Made contrib.site's Site.domain field unique

2 files changed, 21 insertions, 1 deletions

diff --git a/django/contrib/sites/migrations/0002_alter_domain_unique.py b/django/contrib/sites/migrations/0002_alter_domain_unique.py
new file mode 100644
index 0000000000..e7f414fb5c
--- /dev/null
+++ b/django/contrib/sites/migrations/0002_alter_domain_unique.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+import django.contrib.sites.models
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sites', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='site',
+            name='domain',
+            field=models.CharField(max_length=100, unique=True, validators=[django.contrib.sites.models._simple_domain_name_validator], verbose_name='domain name'),
+        ),
+    ]
diff --git a/django/contrib/sites/models.py b/django/contrib/sites/models.py
index d7026d0355..6471dca136 100644
--- a/django/contrib/sites/models.py
+++ b/django/contrib/sites/models.py
@@ -73,7 +73,7 @@ class SiteManager(models.Manager):
 class Site(models.Model):
 
     domain = models.CharField(_('domain name'), max_length=100,
-        validators=[_simple_domain_name_validator])
+        validators=[_simple_domain_name_validator], unique=True)
     name = models.CharField(_('display name'), max_length=50)
     objects = SiteManager()