X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/0dff76ecd927e5be83d8a6076f84c87c5dea4a4c..b2422020bc864b75f31c215b34692468cc03ce92:/apps/catalogue/models/bookmedia.py

diff --git a/apps/catalogue/models/bookmedia.py b/apps/catalogue/models/bookmedia.py
index bf05e214e..88f60f16a 100644
--- a/apps/catalogue/models/bookmedia.py
+++ b/apps/catalogue/models/bookmedia.py
@@ -2,6 +2,7 @@
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
+import json
 from collections import namedtuple
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
@@ -22,10 +23,10 @@ class BookMedia(models.Model):
     format_choices = [(k, _('%s file') % t.name)
             for k, t in formats.items()]
 
-    type        = models.CharField(_('type'), choices=format_choices, max_length="100")
+    type        = models.CharField(_('type'), db_index=True, choices=format_choices, max_length="100")
     name        = models.CharField(_('name'), max_length="100")
     file        = OverwritingFileField(_('file'), upload_to=book_upload_path())
-    uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
+    uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False, db_index=True)
     extra_info  = jsonfield.JSONField(_('extra information'), default='{}', editable=False)
     book = models.ForeignKey('Book', related_name='media')
     source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
@@ -60,6 +61,9 @@ class BookMedia(models.Model):
         remove_zip("%s_%s" % (self.book.slug, self.type))
 
         extra_info = self.extra_info
+        if isinstance(extra_info, basestring):
+            # Walkaround for weird jsonfield 'no-decode' optimization.
+            extra_info = json.loads(extra_info)
         extra_info.update(self.read_meta())
         self.extra_info = extra_info
         self.source_sha1 = self.read_source_sha1(self.file.path, self.type)