Merge master into img-playground. Image support with new management features. Missing...

[redakcja.git] / apps / catalogue / models / listeners.py

diff --git a/apps/catalogue/models/listeners.py b/apps/catalogue/models/listeners.py
new file mode 100755 (executable)
index 0000000..de1387e
--- /dev/null
+++ b/apps/catalogue/models/listeners.py
@@ -0,0 +1,58 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from django.contrib.auth.models import User
+from django.db import models
+from catalogue.models import Book, Chunk, Image
+from catalogue.signals import post_publish
+from dvcs.signals import post_publishable
+
+
+def book_changed(sender, instance, created, **kwargs):
+    instance.touch()
+    for c in instance:
+        c.touch()
+models.signals.post_save.connect(book_changed, sender=Book)
+
+
+def chunk_changed(sender, instance, created, **kwargs):
+    instance.book.touch()
+    instance.touch()
+models.signals.post_save.connect(chunk_changed, sender=Chunk)
+
+
+def image_changed(sender, instance, created, **kwargs):
+    instance.touch()
+models.signals.post_save.connect(image_changed, sender=Image)
+
+
+def user_changed(sender, instance, *args, **kwargs):
+    books = set()
+    for c in instance.chunk_set.all():
+        books.add(c.book)
+        c.touch()
+    for b in books:
+        b.touch()
+models.signals.post_save.connect(user_changed, sender=User)
+
+
+def publish_listener(sender, *args, **kwargs):
+    sender.book.touch()
+    for c in sender.book:
+        c.touch()
+post_publish.connect(publish_listener)
+
+
+def publishable_listener(sender, *args, **kwargs):
+    sender.tree.touch()
+    sender.tree.book.touch()
+post_publishable.connect(publishable_listener)
+
+
+def listener_create(sender, instance, created, **kwargs):
+    if created:
+        instance.chunk_set.create(number=1, slug='1')
+models.signals.post_save.connect(listener_create, sender=Book)
+