fix no preview

diff --git a/teleforma/templatetags/teleforma_tags.py b/teleforma/templatetags/teleforma_tags.py
index e51f2ad2876b79b30ce6e81810821ed49d10c059..c43c99fec60474926f1fb759fcd0cf91e1457ac0 100644 (file)
--- a/teleforma/templatetags/teleforma_tags.py
+++ b/teleforma/templatetags/teleforma_tags.py
@@ -283,7 +283,11 @@ def point(time):
 
 @register.filter
 def preview(related):
-    return related.filter(title='preview')[0]
+    media = related.filter(title='preview')
+    if media:
+        return media[0]
+    else:
+        return None
 
 @register.filter
 def fancy_duration(duration):