Fixes #4001: TOC contains parent books, and add links to previous and next book.

[wolnelektury.git] / src / catalogue / models / collection.py

diff --git a/src/catalogue/models/collection.py b/src/catalogue/models/collection.py
index 3c4b475..739ad78 100644 (file)
--- a/src/catalogue/models/collection.py
+++ b/src/catalogue/models/collection.py
@@ -1,12 +1,12 @@
-# -*- 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.db import models
+from django.urls import reverse
 from django.utils.translation import ugettext_lazy as _
-from ssify import flush_ssi_includes
 import re
+from wolnelektury.utils import cached_render, clear_cached_renders
 
 
 class Collection(models.Model):
@@ -33,9 +33,8 @@ class Collection(models.Model):
         except AttributeError:
             return ''
 
-    @models.permalink
     def get_absolute_url(self):
-        return "collection", [self.slug]
+        return reverse("collection", args=[self.slug])
 
     def get_query(self):
         slugs = self.book_slugs.split()
@@ -47,11 +46,11 @@ class Collection(models.Model):
         from catalogue.models import Book
         return Book.objects.filter(self.get_query())
 
-    def flush_includes(self, languages=True):
-        if not languages:
-            return
-        if languages is True:
-            languages = [lc for (lc, _ln) in settings.LANGUAGES]
+    @cached_render('catalogue/collection_box.html')
+    def box(self):
+        return {
+            'collection': self
+        }
 
-        flush_ssi_includes([
-            '/katalog/%s.json' % lang for lang in languages])
+    def clear_cache(self):
+        clear_cached_renders(self.box)