X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/c2e8051452fa55db096553cbe5ae622fc363d481..b8c235267a6345ebe3891f49c16ad3fc5f1d3f25:/src/picture/models.py

diff --git a/src/picture/models.py b/src/picture/models.py
index 1ad09e2d8..7ccd97c0c 100644
--- a/src/picture/models.py
+++ b/src/picture/models.py
@@ -101,6 +101,8 @@ class Picture(models.Model):
 
     short_html_url_name = 'picture_short'
 
+    is_picture = True
+
     class AlreadyExists(Exception):
         pass
 
@@ -110,6 +112,9 @@ class Picture(models.Model):
         verbose_name = _('picture')
         verbose_name_plural = _('pictures')
 
+    def get_extra_info_json(self):
+        return json.loads(self.extra_info or '{}')
+
     def save(self, force_insert=False, force_update=False, **kwargs):
         from sortify import sortify
 
@@ -118,7 +123,7 @@ class Picture(models.Model):
         try:
             author = self.authors().first().sort_key
         except AttributeError:
-            author = u''
+            author = ''
         self.sort_key_author = author
 
         ret = super(Picture, self).save(force_insert, force_update)