diff -r 78f174d908a0 -r 6289931858a7 src/hp/models.py
--- a/src/hp/models.py	Fri Nov 16 17:38:24 2012 +0100
+++ b/src/hp/models.py	Fri Nov 16 18:33:51 2012 +0100
@@ -11,6 +11,7 @@
 class VideoKCRel(models.Model):
     
     iri_id = models.CharField(max_length=255, unique=True, verbose_name=_('content.iri_id'))
+    project_id = models.CharField(max_length=255, unique=False, verbose_name=_('project_id'), null=True, blank=True)
     graph_id = models.CharField(max_length=1024, verbose_name=_('graph_id'))
     topic_id = models.CharField(max_length=1024, verbose_name=_('topic_id'))