Added view to run migrate_course management command

This view can be used by superusers to migrate courses without needing to SSH into the machine.

XCOM-193

ecommerce/courses/tests/test_views.py

+from django.core.urlresolvers import reverse
+from django.test import TestCase
+
+from ecommerce.tests.mixins import UserMixin
+
+
+class CourseMigrationViewTests(UserMixin, TestCase):
+    path = reverse('migrate_course')
+
+    def test_superuser_required(self):
+        """ Verify the view is only accessible to superusers. """
+        response = self.client.get(self.path)
+        self.assertEqual(response.status_code, 404)
+
+        user = self.create_user(is_superuser=False)
+        self.client.login(username=user.username, password=self.password)
+        response = self.client.get(self.path)
+        self.assertEqual(response.status_code, 404)
+
+        user = self.create_user(is_superuser=True)
+        self.client.login(username=user.username, password=self.password)
+        response = self.client.get(self.path + '?course_ids=foo')
+        self.assertEqual(response.status_code, 200)
+
+    def test_course_ids_required(self):
+        """ The view should return HTTP status 400 if no course IDs are provided. """
+        user = self.create_user(is_superuser=True)
+        self.client.login(username=user.username, password=self.password)
+        response = self.client.get(self.path)
+        self.assertEqual(response.status_code, 400)
+
+        response = self.client.get(self.path + '?course_ids=')
+        self.assertEqual(response.status_code, 400)
+
+        response = self.client.get(self.path + '?course_ids=foo')
+        self.assertEqual(response.status_code, 200)

ecommerce/courses/views.py

+from StringIO import StringIO
+import logging
+
+from django.core.management import call_command
+from django.http import Http404, HttpResponse
+from django.views.generic import View
+
+logger = logging.getLogger(__name__)
+
+
+class CourseMigrationView(View):
+    def dispatch(self, request, *args, **kwargs):
+        if not request.user.is_superuser:
+            raise Http404
+
+        return super(CourseMigrationView, self).dispatch(request, *args, **kwargs)
+
+    def get(self, request, *_args, **_kwargs):
+        course_ids = request.GET.get('course_ids')
+        commit = request.GET.get('commit', False)
+        commit = commit in ('1', 'true')
+
+        # Capture all output and logging
+        out = StringIO()
+        err = StringIO()
+        log = StringIO()
+
+        root_logger = logging.getLogger()
+        log_handler = logging.StreamHandler(log)
+        formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
+        log_handler.setFormatter(formatter)
+        root_logger.addHandler(log_handler)
+
+        # Log who ran this request
+        msg = 'User [%s] requested course migration for [%s]. '
+        if commit:
+            msg += 'The changes will be committed to the database.'
+        else:
+            msg += 'The changes will NOT be committed to the database.'
+
+        logger.info(msg, request.user.username, course_ids)
+
+        if not course_ids:
+            return HttpResponse('No course_ids specified.', status=400)
+
+        course_ids = course_ids.split(',')
+
+        call_command('migrate_course', *course_ids, commit=commit, stdout=out, stderr=err)
+
+        # Format the output for display
+        output = 'STDOUT\n{out}\n\nSTDERR\n{err}\n\nLOG\n{log}'.format(out=out.getvalue(), err=err.getvalue(),
+                                                                       log=log.getvalue())
+
+        # Remove the log capture handler
+        root_logger.removeHandler(log_handler)
+
+        return HttpResponse(output, content_type='text/plain')

ecommerce/extensions/catalogue/management/commands/migrate_course.py

@@ -210,5 +210,8 @@ class Command(BaseCommand):
 
                 if options.get('commit', False):
                     migrated_course.save()
+                    logger.info('Course [%s] was saved to the database.', migrated_course.course.id)
+                else:
+                    logger.info('Course [%s] was NOT saved to the database.', migrated_course.course.id)
             except Exception:  # pylint: disable=broad-except
                 logger.exception('Failed to migrate [%s]!', course_id)

ecommerce/urls.py

@@ -7,6 +7,7 @@ from django.contrib import admin
 from django.core.urlresolvers import reverse_lazy
 from django.shortcuts import redirect
 from django.views.generic import RedirectView
+from ecommerce.courses.views import CourseMigrationView
 
 from ecommerce.extensions.urls import urlpatterns as extensions_patterns
 from ecommerce.user import views as user_views
@@ -34,6 +35,7 @@ admin.autodiscover()
 urlpatterns = patterns(
     '',
     url(r'^i18n/', include('django.conf.urls.i18n')),
+    url(r'^admin/courses/migrate/$', CourseMigrationView.as_view(), name='migrate_course'),
     url(r'^admin/', include(admin.site.urls)),
     url(r'^auto_auth/$', user_views.AutoAuth.as_view(), name='auto_auth'),
     url(r'^health/$', include('health.urls')),