Some cleaning.

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

diff --git a/apps/catalogue/models/listeners.py b/apps/catalogue/models/listeners.py
index 7e034a1..d414eb2 100644 (file)
--- a/apps/catalogue/models/listeners.py
+++ b/apps/catalogue/models/listeners.py
@@ -3,34 +3,14 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from django.conf import settings
-from django.core.cache import get_cache
+from django.core.cache import caches
 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
+from catalogue.models import BookMedia, Book, Collection
+from catalogue.utils import delete_from_cache_by_language
 
 
-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)
+permanent_cache = caches['permanent']
 
 
 def _pre_delete_handler(sender, instance, **kwargs):
@@ -40,18 +20,29 @@ def _pre_delete_handler(sender, instance, **kwargs):
 pre_delete.connect(_pre_delete_handler)
 
 
+def _post_delete_handler(sender, instance, **kwargs):
+    """ refresh Book on BookMedia delete """
+    if sender == Collection:
+        delete_from_cache_by_language(permanent_cache, 'catalogue.collection:%s/%%s' % instance.slug)
+        delete_from_cache_by_language(permanent_cache, 'catalogue.catalogue/%s')
+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()
+        delete_from_cache_by_language(permanent_cache, 'catalogue.audiobook_list/%s')
+        delete_from_cache_by_language(permanent_cache, 'catalogue.daisy_list/%s')
     elif sender == Collection:
-        permanent_cache.delete('catalogue.collection:%s' % instance.slug)
+        delete_from_cache_by_language(permanent_cache, 'catalogue.collection:%s/%%s' % instance.slug)
+        delete_from_cache_by_language(permanent_cache, 'catalogue.catalogue/%s')
 post_save.connect(_post_save_handler)
 
 
 def post_publish(sender, **kwargs):
-    permanent_cache.delete_many(['catalogue.book_list',
-            'catalogue.audiobook_list', 'catalogue.daisy_list'])
+    delete_from_cache_by_language(permanent_cache, 'catalogue.book_list/%s')
+    delete_from_cache_by_language(permanent_cache, 'catalogue.catalogue/%s')
 Book.published.connect(post_publish)
 
 
@@ -59,12 +50,7 @@ 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
-        search.JVM.attachCurrentThread()
-        idx = search.Index()
-        idx.open(timeout=10000)  # 10 seconds timeout.
-        try:
-            idx.remove_book(instance)
-            idx.index_tags()
-        finally:
-            idx.close()
+        from search.index import Index
+        idx = Index()
+        idx.remove_book(instance)
+        idx.index_tags()