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+Writing migrations
+==================
+
+Migration containing reference to the user model must be rewritten manually to
+refer to the user model name indirectly. The followind modifications must be applied.
+
+1. First import the `user_model_label` from the `authentic2.compat` module:::
+
+    from authentic2.compat import user_model_label
+
+Any reference to `orm['auth.User']` or `orm['authentic2.User']` must be
+rewritten into `orm[user_model_label]`. For example this line:::
+
+    ('user', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['authentic2.User'])),
+
+must be changed to:::
+
+    ('user', self.gf('django.db.models.fields.related.ForeignKey')(to=orm[user_model_label])),
+
+2. The user model when appearing in the `models` field like this:::
+
+        u'auth.user': {
+            'meta': {'object_name': 'User',
+
+must be rewritten like that:::
+
+        user_model_label: {
+            'Meta': {'object_name': user_model_label.split('.')[-1]},
+
+3. If the user model is referred inside the `to` field of a foreign key
+   declaration like this:::
+
+        'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']"})
+
+   must be rewritten like that:::
+
+        'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['%s']" user_model_label})