@@ -0,0 +1,605 @@
+# -*- coding: utf-8 -*-%0A# Generated by Django 1.9 on 2016-07-18 10:54%0Afrom __future__ import unicode_literals%0A%0Afrom django.db import migrations, models%0Aimport django.db.models.deletion%0A%0A%0Aclass Migration(migrations.Migration):%0A%0A    dependencies = %5B%0A        ('domain', '0007_db_index'),%0A    %5D%0A%0A    operations = %5B%0A        migrations.AlterField(%0A            model_name='attributeentity',%0A            name='parent_collection',%0A            field=models.ForeignKey(blank=True, default=None, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='+', to='domain.AttributeEntity'),%0A        ),%0A    %5D%0A

add migration