Make Representative abstract (user must inherit from it)

representatives/models.py

+# -*- coding:utf-8 -*-
+
 from django.db import models
 
 
@@ -29,6 +31,9 @@ class Representative(models.Model):
     birth_date = models.DateField(blank=True, null=True)
     cv = models.TextField(blank=True, null=True)
 
+    class Meta:
+        abstract = True
+
 
 class Contact(models.Model):
     representative = models.ForeignKey(Representative)