diff --git a/djangoldp_notification/migrations/0003_auto_20200429_1346.py b/djangoldp_notification/migrations/0003_auto_20200429_1346.py
new file mode 100644
index 0000000000000000000000000000000000000000..38f201653580469029367632c2ab3e45d2bcc618
--- /dev/null
+++ b/djangoldp_notification/migrations/0003_auto_20200429_1346.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2020-04-29 13:46
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+ dependencies = [
+ ('djangoldp_notification', '0002_auto_20190917_1107'),
+ ]
+
+ operations = [
+ migrations.AddField(
+ model_name='notification',
+ name='allow_create_backlink',
+ field=models.BooleanField(default=True, help_text='set to False to disable backlink creation after Model save'),
+ ),
+ migrations.AddField(
+ model_name='subscription',
+ name='allow_create_backlink',
+ field=models.BooleanField(default=True, help_text='set to False to disable backlink creation after Model save'),
+ ),
+ ]
diff --git a/djangoldp_notification/migrations/0004_auto_20200501_1207.py b/djangoldp_notification/migrations/0004_auto_20200501_1207.py
new file mode 100644
index 0000000000000000000000000000000000000000..7fcd9e2b282e850a29c942d203fcac9d7d2df146
--- /dev/null
+++ b/djangoldp_notification/migrations/0004_auto_20200501_1207.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2020-05-01 12:07
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+ dependencies = [
+ ('djangoldp_notification', '0003_auto_20200429_1346'),
+ ]
+
+ operations = [
+ migrations.AddField(
+ model_name='notification',
+ name='backlink_created',
+ field=models.BooleanField(default=False, help_text='set automatically to indicate the Model is a backlink'),
+ ),
+ migrations.AddField(
+ model_name='subscription',
+ name='backlink_created',
+ field=models.BooleanField(default=False, help_text='set automatically to indicate the Model is a backlink'),
+ ),
+ ]
diff --git a/djangoldp_notification/migrations/0005_auto_20200505_1733.py b/djangoldp_notification/migrations/0005_auto_20200505_1733.py
new file mode 100644
index 0000000000000000000000000000000000000000..d978e83b77b6540739438777a87f576eac405985
--- /dev/null
+++ b/djangoldp_notification/migrations/0005_auto_20200505_1733.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2020-05-05 17:33
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+ dependencies = [
+ ('djangoldp_notification', '0004_auto_20200501_1207'),
+ ]
+
+ operations = [
+ migrations.RenameField(
+ model_name='notification',
+ old_name='backlink_created',
+ new_name='is_backlink',
+ ),
+ migrations.RenameField(
+ model_name='subscription',
+ old_name='backlink_created',
+ new_name='is_backlink',
+ ),
+ ]
diff --git a/djangoldp_notification/models.py b/djangoldp_notification/models.py
index d367096ab44f2882676ccab413a378db881c350b..db59ceb9985732adb255be8ebc8b53882d1685ee 100644
--- a/djangoldp_notification/models.py
+++ b/djangoldp_notification/models.py
@@ -12,7 +12,6 @@ from django.utils.translation import ugettext_lazy as _
from djangoldp.fields import LDPUrlField
from djangoldp.models import Model
from threading import Thread
-
from djangoldp_notification.middlewares import MODEL_MODIFICATION_USER_FIELD
from djangoldp_notification.permissions import InboxPermissions, SubscriptionsPermissions
@@ -63,6 +62,31 @@ class Subscription(Model):
authenticated_perms = ["add", "view", "delete"]
permission_classes = [SubscriptionsPermissions]
+ def save(self, *args, **kwargs):
+ # save subscriptions for nested fields
+ if self.pk is None and not self.is_backlink and self.object.startswith(settings.SITE_URL):
+ try:
+ # object is a WebID.. convert to local representation
+ local = Model.resolve(self.object.replace(settings.SITE_URL, ''))[0]
+ nested_fields = Model.get_meta(local, 'nested_fields', [])
+
+ for nested_field in nested_fields:
+ nested_url = str(self.object) + '1/' + nested_field + '/'
+
+ # we have the nested_url, but we want the model contained within's container
+ nested_container = Model.resolve(nested_url)[0]
+ nested_container_url = Model.absolute_url(nested_container)
+
+ # check a Subscription on this pair doesn't exist already
+ existing_subscriptions = Subscription.objects.filter(object=nested_container_url, inbox=self.inbox)
+ # save a Subscription on this container
+ if not existing_subscriptions.exists():
+ Subscription.objects.create(object=nested_container_url, inbox=self.inbox, is_backlink=True)
+ except:
+ pass
+
+ super(Subscription, self).save(*args, **kwargs)
+
# --- SUBSCRIPTION SYSTEM ---
@receiver(post_save, dispatch_uid="callback_notif")
def send_notification(sender, instance, created, **kwargs):
@@ -76,9 +100,10 @@ def send_notification(sender, instance, created, **kwargs):
# dispatch a notification for every Subscription on this resource
for subscription in Subscription.objects.filter(models.Q(object=url_resource) | models.Q(object=url_container)):
- process = Thread(target=send_request, args=[subscription.inbox, url_resource, instance, created])
- process.start()
- threads.append(process)
+ if not instance.is_backlink:
+ process = Thread(target=send_request, args=[subscription.inbox, url_resource, instance, created])
+ process.start()
+ threads.append(process)
def send_request(target, object_iri, instance, created):