Send UUID to ecommerce

When publishing, we want to give ecommerce the UUID of the course
so that it doesn't have to turn around and ask us for that same bit
of information.

course_discovery/apps/publisher/api/v1/tests/test_views.py

@@ -139,6 +139,9 @@ class CourseRunViewSetTests(APITestCase):
         publisher_course = publisher_course_run.course
         discovery_course = discovery_course_run.course
 
+        assert ecommerce_body['id'] == publisher_course_run.lms_course_id
+        assert ecommerce_body['uuid'] == str(discovery_course.uuid)
+
         # pylint: disable=no-member
         assert discovery_course_run.title_override == publisher_course_run.title_override
         assert discovery_course_run.short_description_override is None

course_discovery/apps/publisher/api/v1/views.py

@@ -33,6 +33,10 @@ class CourseRunViewSet(viewsets.GenericViewSet):
 
     PUBLICATION_SUCCESS_STATUS = 'SUCCESS'
 
+    def get_course_key(self, publisher_course):
+        return '{org}+{number}'.format(org=publisher_course.organizations.first().key,
+                                       number=publisher_course.number)
+
     @detail_route(methods=['post'])
     def publish(self, request, pk=None):
         course_run = self.get_object()
@@ -43,7 +47,7 @@ class CourseRunViewSet(viewsets.GenericViewSet):
         try:
             publication_status['studio'] = self.publish_to_studio(partner, course_run)
             publication_status['discovery'] = self.publish_to_discovery(partner, course_run)
-            # ecommerce is going to want to ask discovery about the course's UUID, so we do this last
+            # Publish to ecommerce last because it needs the just-created UUID from discovery
             publication_status['ecommerce'] = self.publish_to_ecommerce(partner, course_run)
         except SlumberBaseException as ex:
             logger.exception('Failed to publish course run [%s]!', pk)
@@ -76,9 +80,13 @@ class CourseRunViewSet(viewsets.GenericViewSet):
             return 'FAILED: ' + str(ex)
 
     def publish_to_ecommerce(self, partner, course_run):
+        course_key = self.get_course_key(course_run.course)
+        discovery_course = Course.objects.get(partner=partner, key=course_key)
+
         api = EdxRestApiClient(partner.ecommerce_api_url, jwt=partner.access_token)
         data = {
             'id': course_run.lms_course_id,
+            'uuid': str(discovery_course.uuid),
             'name': course_run.title_override or course_run.course.title,
             'verification_deadline': serialize_datetime(course_run.end),
             'create_or_activate_enrollment_code': False,
@@ -102,8 +110,7 @@ class CourseRunViewSet(viewsets.GenericViewSet):
 
     def publish_to_discovery(self, partner, course_run):
         publisher_course = course_run.course
-        course_key = '{org}+{number}'.format(org=publisher_course.organizations.first().key,
-                                             number=publisher_course.number)
+        course_key = self.get_course_key(publisher_course)
 
         video = None
         if publisher_course.video_link: