Merge pull request #30 from Fueled/user_token_unique

fix(models):make user and token unique

push_notifications/__init__.py

@@ -1 +1 @@
-__version__ = '0.1.3'
+__version__ = '0.1.4'

push_notifications/migrations/0002_auto_20150528_1115.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('push_notifications', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='pushdevice',
+            unique_together=set([('user', 'token')]),
+        ),
+    ]

push_notifications/models.py

@@ -55,6 +55,9 @@ class PushDevice(models.Model):
 
     objects = PushDeviceManager()
 
+    class Meta:
+        unique_together = ('user', 'token')
+
     def add_permissions(self, notice_types):
         """ Adds a permission to the push device """
         PushDevice.change_permissions(notice_types, self, send=True)