From fda61b52aad939229fae502f4831422325fb653d Mon Sep 17 00:00:00 2001
From: Renzo Lucioni <renzo@renzolucioni.com>
Date: Mon, 19 Oct 2015 15:58:02 -0400
Subject: [PATCH] Reserve ecommerce worker username

Django's user model allows email addresses to be blank. However, edx-platform includes a migration requiring that email addresses be unique. Someone in our production environment already had a blank email address, so this migration was failing earlier.
---
 .../0001_add_ecommerce_service_user.py        | 26 +++++++++++++++++++
 .../commerce/migrations/__init__.py           |  0
 lms/envs/common.py                            |  1 +
 3 files changed, 27 insertions(+)
 create mode 100644 lms/djangoapps/commerce/migrations/0001_add_ecommerce_service_user.py
 create mode 100644 lms/djangoapps/commerce/migrations/__init__.py

diff --git a/lms/djangoapps/commerce/migrations/0001_add_ecommerce_service_user.py b/lms/djangoapps/commerce/migrations/0001_add_ecommerce_service_user.py
new file mode 100644
index 0000000000..2c96467493
--- /dev/null
+++ b/lms/djangoapps/commerce/migrations/0001_add_ecommerce_service_user.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+from django.conf import settings
+from django.contrib.auth.models import User
+from django.db import models
+from south.db import db
+from south.utils import datetime_utils as datetime
+from south.v2 import DataMigration
+
+
+class Migration(DataMigration):
+    username = settings.ECOMMERCE_SERVICE_WORKER_USERNAME
+    email = username + '@fake.email'
+
+    def forwards(self, orm):
+        """Add the service user."""
+        user = User.objects.create(username=self.username, email=self.email)
+        user.set_unusable_password()
+        user.save()
+
+    def backwards(self, orm):
+        """Remove the service user."""
+        User.objects.get(username=self.username, email=self.email).delete()
+
+    models = {}
+    complete_apps = ['commerce']
+    symmetrical = True
diff --git a/lms/djangoapps/commerce/migrations/__init__.py b/lms/djangoapps/commerce/migrations/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/lms/envs/common.py b/lms/envs/common.py
index 0ec36066f4..7cf5392f76 100644
--- a/lms/envs/common.py
+++ b/lms/envs/common.py
@@ -2578,6 +2578,7 @@ ECOMMERCE_PUBLIC_URL_ROOT = None
 ECOMMERCE_API_URL = None
 ECOMMERCE_API_SIGNING_KEY = None
 ECOMMERCE_API_TIMEOUT = 5
+ECOMMERCE_SERVICE_WORKER_USERNAME = 'ecommerce_worker'
 
 # Reverification checkpoint name pattern
 CHECKPOINT_PATTERN = r'(?P<checkpoint_name>[^/]+)'