Merge branch 'bugfix/ldp-field-object' into 'master'

bugfix: add @id to object field

See merge request startinblox/djangoldp-packages/djangoldp-notifications!6

djangoldp_notification/migrations/0002_auto_20190301_0418.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2019-03-01 04:18
+from __future__ import unicode_literals
+
+from django.db import migrations
+import djangoldp.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('djangoldp_notification', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='notification',
+            name='object',
+            field=djangoldp.fields.LDPUrlField(),
+        ),
+    ]

djangoldp_notification/models.py

@@ -13,7 +13,7 @@ from django.contrib.admin.models import LogEntry
 class Notification(models.Model):
     user = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='inbox')
     author_user = LDPUrlField()
-    object = models.URLField()
+    object = LDPUrlField()
     type = models.CharField(max_length=255)
     summary = models.TextField()
     date = models.DateTimeField(auto_now_add=True)