Drop constraints before DOT Upgrade.

ARCH-180

openedx/core/djangoapps/oauth_dispatch/migrations/0006_drop_application_id_constraints.py

@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.14 on 2018-07-23 14:58
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('oauth_dispatch', '0005_applicationaccess_type'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='applicationaccess',
+            name='application',
+            field=models.OneToOneField(db_constraint=False, on_delete=django.db.models.deletion.CASCADE, related_name='access', to=settings.OAUTH2_PROVIDER_APPLICATION_MODEL),
+        ),
+        migrations.AlterField(
+            model_name='applicationorganization',
+            name='application',
+            field=models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.CASCADE, related_name='organizations', to=settings.OAUTH2_PROVIDER_APPLICATION_MODEL),
+        ),
+        migrations.AlterField(
+            model_name='restrictedapplication',
+            name='application',
+            field=models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.CASCADE, to=settings.OAUTH2_PROVIDER_APPLICATION_MODEL),
+        ),
+    ]

openedx/core/djangoapps/oauth_dispatch/models.py

@@ -24,7 +24,9 @@ class RestrictedApplication(models.Model):
     so that they cannot be used to call into APIs.
     """
 
-    application = models.ForeignKey(oauth2_settings.APPLICATION_MODEL, null=False, on_delete=models.CASCADE)
+    application = models.ForeignKey(
+        oauth2_settings.APPLICATION_MODEL, db_constraint=False, null=False, on_delete=models.CASCADE
+    )
 
     class Meta:
         app_label = 'oauth_dispatch'
@@ -58,7 +60,7 @@ class ApplicationAccess(models.Model):
     Specifies access control information for the associated Application.
     """
 
-    application = models.OneToOneField(oauth2_settings.APPLICATION_MODEL, related_name='access')
+    application = models.OneToOneField(oauth2_settings.APPLICATION_MODEL, db_constraint=False, related_name='access')
     scopes = ListCharField(
         base_field=models.CharField(max_length=32),
         size=25,
@@ -95,7 +97,9 @@ class ApplicationOrganization(models.Model):
         (RELATION_TYPE_CONTENT_ORG, _('Content Provider')),
     )
 
-    application = models.ForeignKey(oauth2_settings.APPLICATION_MODEL, related_name='organizations')
+    application = models.ForeignKey(
+        oauth2_settings.APPLICATION_MODEL, db_constraint=False, related_name='organizations'
+    )
     organization = models.ForeignKey(Organization)
     relation_type = models.CharField(
         max_length=32,