X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/357027375ff8867f42ca34bcbfb5a78b5b185fc3..a9925ebffe713307d6bedecd670df1490aa206c8:/src/catalogue/models/source.py

diff --git a/src/catalogue/models/source.py b/src/catalogue/models/source.py
index 9aff4efec..ee024e0e6 100644
--- a/src/catalogue/models/source.py
+++ b/src/catalogue/models/source.py
@@ -1,9 +1,8 @@
-# -*- 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.db import models
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 
 class Source(models.Model):
@@ -17,7 +16,7 @@ class Source(models.Model):
         verbose_name_plural = _('sources')
         app_label = 'catalogue'
 
-    def __unicode__(self):
+    def __str__(self):
         return self.netloc
 
     def save(self, *args, **kwargs):
@@ -26,7 +25,7 @@ class Source(models.Model):
             str(self.pk)
             old_self = type(self).objects.get(pk=self)
         except type(self).DoesNotExist:
-            old_name = u''
+            old_name = ''
             old_netloc = self.netloc
         else:
             old_name = old_self.name
@@ -38,8 +37,7 @@ class Source(models.Model):
         # and invalidate their cached includes.
         if old_name != self.name or old_netloc != self.netloc:
             for book in Book.objects.all():
-                source = book.extra_info.get('source_url', '')
-                if self.netloc in source or (old_netloc != self.netloc
-                        and old_netloc in source):
-                    book.flush_includes()
+                source = book.get_extra_info_json().get('source_url', '')
+                if self.netloc in source or (old_netloc != self.netloc and old_netloc in source):
+                    book.clear_cache()
         return ret