From 147d199c3dc6a78fabaf48af320eb64803d308c5 Mon Sep 17 00:00:00 2001
From: Alejandro Alonso <alejandro.alonso@kaleidos.net>
Date: Wed, 29 Oct 2014 12:48:11 +0100
Subject: [PATCH] Fixing problem with new notifications system on upload 2
 equal attachments.

---
 .../migrations/0003_auto_20141029_1143.py      | 18 ++++++++++++++++++
 taiga/projects/notifications/models.py         |  3 +++
 2 files changed, 21 insertions(+)
 create mode 100644 taiga/projects/notifications/migrations/0003_auto_20141029_1143.py

diff --git a/taiga/projects/notifications/migrations/0003_auto_20141029_1143.py b/taiga/projects/notifications/migrations/0003_auto_20141029_1143.py
new file mode 100644
index 00000000..1f5f6b93
--- /dev/null
+++ b/taiga/projects/notifications/migrations/0003_auto_20141029_1143.py
@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('notifications', '0002_historychangenotification'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='historychangenotification',
+            unique_together=set([('key', 'owner', 'project', 'history_type')]),
+        ),
+    ]
diff --git a/taiga/projects/notifications/models.py b/taiga/projects/notifications/models.py
index 1b62ce0a..6b631abc 100644
--- a/taiga/projects/notifications/models.py
+++ b/taiga/projects/notifications/models.py
@@ -67,3 +67,6 @@ class HistoryChangeNotification(models.Model):
                                 verbose_name="project",related_name="+")
 
     history_type = models.SmallIntegerField(choices=HISTORY_TYPE_CHOICES)
+
+    class Meta:
+        unique_together = ("key", "owner", "project", "history_type")