add metadata

app/video/models.py

@@ -4,6 +4,8 @@ from django.conf import settings
 from django.contrib.auth import get_user_model
 from django.db import models
 
+import ox
+
 logger = logging.getLogger(__name__)
 User = get_user_model()
 
@@ -31,6 +33,8 @@ class Film(models.Model):
         from ..text.models import Text
         return Text.objects.filter(data__item=self.padma_id)
 
+    def duration(self):
+        return ox.format_timecode(self.data['duration'])[:-4]
 
 class Edit(models.Model):
     created = models.DateTimeField(auto_now_add=True)