Using cache middleware instead of various caching micro-strategies,

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

diff --git a/apps/catalogue/models/listeners.py b/apps/catalogue/models/listeners.py
deleted file mode 100644 (file)
index 373a2fc..0000000
--- a/apps/catalogue/models/listeners.py
+++ /dev/null
@@ -1,76 +0,0 @@
-# -*- coding: utf-8 -*-
-# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-from django.conf import settings
-from django.core.cache import get_cache
-from django.db.models.signals import post_save, pre_delete, post_delete
-import django.dispatch
-from catalogue.models import Tag, BookMedia, Book, Fragment, Collection
-from catalogue import tasks
-from newtagging.models import tags_updated
-
-
-permanent_cache = get_cache('permanent')
-
-
-def _tags_updated_handler(sender, affected_tags, **kwargs):
-    # reset tag global counter
-    # we want Tag.changed_at updated for API to know the tag was touched
-    for tag in affected_tags:
-        tasks.touch_tag(tag)
-
-    # if book tags changed, reset book tag counter
-    if isinstance(sender, Book) and \
-                Tag.objects.filter(pk__in=(tag.pk for tag in affected_tags)).\
-                    exclude(category__in=('book', 'theme', 'set')).count():
-        sender.reset_tag_counter()
-    # if fragment theme changed, reset book theme counter
-    elif isinstance(sender, Fragment) and \
-                Tag.objects.filter(pk__in=(tag.pk for tag in affected_tags)).\
-                    filter(category='theme').count():
-        sender.book.reset_theme_counter()
-tags_updated.connect(_tags_updated_handler)
-
-
-def _pre_delete_handler(sender, instance, **kwargs):
-    """ refresh Book on BookMedia delete """
-    if sender == BookMedia:
-        instance.book.save()
-pre_delete.connect(_pre_delete_handler)
-
-
-def _post_delete_handler(sender, instance, **kwargs):
-    """ refresh Book on BookMedia delete """
-    if sender == Collection:
-        permanent_cache.delete('catalogue.collection:%s' % instance.slug)
-        permanent_cache.delete('catalogue.catalogue')
-post_delete.connect(_post_delete_handler)
-
-
-def _post_save_handler(sender, instance, **kwargs):
-    """ refresh all the short_html stuff on BookMedia update """
-    if sender == BookMedia:
-        instance.book.save()
-        permanent_cache.delete_many([
-            'catalogue.audiobook_list', 'catalogue.daisy_list'])
-    elif sender == Collection:
-        permanent_cache.delete('catalogue.collection:%s' % instance.slug)
-        permanent_cache.delete('catalogue.catalogue')
-post_save.connect(_post_save_handler)
-
-
-def post_publish(sender, **kwargs):
-    permanent_cache.delete('catalogue.book_list')
-    permanent_cache.delete('catalogue.catalogue')
-Book.published.connect(post_publish)
-
-
-if not settings.NO_SEARCH_INDEX:
-    @django.dispatch.receiver(post_delete, sender=Book)
-    def _remove_book_from_index_handler(sender, instance, **kwargs):
-        """ remove the book from search index, when it is deleted."""
-        import search
-        idx = search.Index()
-        idx.remove_book(instance)
-        idx.index_tags()