diff -r 651f67b66c51 -r 7c994c98d1df web/ldt_utils/core/models.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/ldt_utils/core/models.py	Tue Jun 08 15:31:42 2010 +0200
@@ -0,0 +1,22 @@
+from django.db import models
+from django.contrib.auth.models import *
+
+
+class Owner(models.Model):
+    user = models.ForeignKey(User,  blank=True, null=True)
+    group = models.ForeignKey(Group,  blank=True, null=True)
+
+    def __unicode__(self):
+        if self.user:
+            return self.user.username
+        else:
+            return self.group.name
+
+
+class Document(models.Model):
+    owner= models.ForeignKey(Owner, blank = True, null=True)
+
+    class Meta:
+        abstract = True
+
+