Revert "Temporarily remove updating index alias"

This reverts commit 349b9aa6.

course_discovery/apps/edx_haystack_extensions/management/commands/update_index.py

@@ -28,9 +28,8 @@ class Command(HaystackCommand):
         super(Command, self).handle(*items, **options)
 
         # Set the alias (from settings) to the timestamped catalog.
-        # Temporarily commenting this out to test if update index command is still broken
-        # for backend, index, alias in alias_mappings:
-        #    self.set_alias(backend, alias, index)
+        for backend, index, alias in alias_mappings:
+            self.set_alias(backend, alias, index)
 
     def set_alias(self, backend, alias, index):
         """

course_discovery/apps/edx_haystack_extensions/tests/test_update_index.py

-import pytest
 from django.conf import settings
 from django.core.management import call_command
 from django.test import TestCase
@@ -8,7 +7,6 @@ from freezegun import freeze_time
 from course_discovery.apps.edx_haystack_extensions.tests.mixins import SearchIndexTestMixin
 
 
-@pytest.mark.skip(reason="Temporarily disabling for testing update index command")
 class UpdateIndexTests(SearchIndexTestMixin, TestCase):
     @freeze_time('2016-06-21')
     def test_handle(self):