From 8798ee0f5340677afd9952e9e8b9008d0c780355 Mon Sep 17 00:00:00 2001
From: Ahsan Ulhaq <ahsan.haq@arbisoft.com>
Date: Thu, 7 Jan 2016 16:20:28 +0500
Subject: [PATCH] Add credentials service user

---
 cms/envs/test.py                              |  1 +
 lms/envs/common.py                            |  3 ++
 lms/envs/test.py                              |  1 +
 .../migrations/0003_data__add_service_user.py | 34 +++++++++++++++++++
 4 files changed, 39 insertions(+)
 create mode 100644 openedx/core/djangoapps/credentials/migrations/0003_data__add_service_user.py

diff --git a/cms/envs/test.py b/cms/envs/test.py
index 89c4586016..659b97227f 100644
--- a/cms/envs/test.py
+++ b/cms/envs/test.py
@@ -132,6 +132,7 @@ DATABASES = {
 # This hack disables migrations during tests. We want to create tables directly from the models for speed.
 # See https://groups.google.com/d/msg/django-developers/PWPj3etj3-U/kCl6pMsQYYoJ.
 MIGRATION_MODULES = {app: "app.migrations_not_used_in_tests" for app in INSTALLED_APPS}
+MIGRATION_MODULES["credentials"] = "app.migrations_not_used_in_tests"
 
 LMS_BASE = "localhost:8000"
 FEATURES['PREVIEW_LMS_BASE'] = "preview"
diff --git a/lms/envs/common.py b/lms/envs/common.py
index fd925c39be..48e622757c 100644
--- a/lms/envs/common.py
+++ b/lms/envs/common.py
@@ -2553,6 +2553,9 @@ ECOMMERCE_API_SIGNING_KEY = None
 ECOMMERCE_API_TIMEOUT = 5
 ECOMMERCE_SERVICE_WORKER_USERNAME = 'ecommerce_worker'
 
+# Credentials configuration
+CREDENTIALS_SERVICE_USERNAME = 'credentials_service_user'
+
 # Reverification checkpoint name pattern
 CHECKPOINT_PATTERN = r'(?P<checkpoint_name>[^/]+)'
 
diff --git a/lms/envs/test.py b/lms/envs/test.py
index 2b58e02569..0617443bb5 100644
--- a/lms/envs/test.py
+++ b/lms/envs/test.py
@@ -190,6 +190,7 @@ DATABASES = {
 # This hack disables migrations during tests. We want to create tables directly from the models for speed.
 # See https://groups.google.com/d/msg/django-developers/PWPj3etj3-U/kCl6pMsQYYoJ.
 MIGRATION_MODULES = {app: "app.migrations_not_used_in_tests" for app in INSTALLED_APPS}
+MIGRATION_MODULES["credentials"] = "app.migrations_not_used_in_tests"
 
 CACHES = {
     # This is the cache used for most things.
diff --git a/openedx/core/djangoapps/credentials/migrations/0003_data__add_service_user.py b/openedx/core/djangoapps/credentials/migrations/0003_data__add_service_user.py
new file mode 100644
index 0000000000..e1da00f4cc
--- /dev/null
+++ b/openedx/core/djangoapps/credentials/migrations/0003_data__add_service_user.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+from django.conf import settings
+from django.contrib.auth.models import User
+
+
+def add_service_user(apps, schema_editor):
+    """Add service user."""
+    user, created = User.objects.get_or_create(username=settings.CREDENTIALS_SERVICE_USERNAME, is_staff=True)
+    if created:
+        user.set_unusable_password()
+        user.save()
+
+
+def remove_service_user(apps, schema_editor):
+    """Remove service user."""
+    try:
+        User.objects.get(username=settings.CREDENTIALS_SERVICE_USERNAME).delete()
+    except User.DoesNotExist:
+        return
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('credentials', '0002_credentialsapiconfig_cache_ttl'),
+    ]
+
+    operations = [
+        migrations.RunPython(add_service_user, remove_service_user),
+    ]