title: django: data migrate permissions
body: <p>I have a bunch of new permissions which I need to migrate. I tried doing it through data migration but complains about <code>ContentType not being available</code>.</p>
  
  <p>Doing quick research I found out that <code>ContentType</code> table is populated after all the migrations applied.</p>
  
  <p>I even tried using <code>update_all_contenttypes()</code> from <code>from django.contrib.contenttypes.management import update_all_contenttypes
  </code> which causes migration to load data which is not consistent to the fixture.</p>
  
  <p>What is the best way to migrate permission data in Django?</p>