feat: reindex course and recreate upstream links post import and course re-run (#37237)

Index the newly created course after import and course re-run. Also recreate upstream links after course re-run.

We make use of newly created COURSE_RERUN_COMPLETED signal to run post re-run processes.

cms/djangoapps/contentstore/signals/handlers.py

@@ -23,6 +23,7 @@ from openedx_events.content_authoring.data import (
 from openedx_events.content_authoring.signals import (
     COURSE_CATALOG_INFO_CHANGED,
     COURSE_IMPORT_COMPLETED,
+    COURSE_RERUN_COMPLETED,
     LIBRARY_BLOCK_DELETED,
     LIBRARY_CONTAINER_DELETED,
     XBLOCK_CREATED,
@@ -304,10 +305,10 @@ def delete_upstream_downstream_link_handler(**kwargs):
     ).delete()
 
 
-@receiver(COURSE_IMPORT_COMPLETED)
-def handle_new_course_import(**kwargs):
+@receiver([COURSE_IMPORT_COMPLETED, COURSE_RERUN_COMPLETED])
+def handle_upstream_links_on_signal(**kwargs):
     """
-    Automatically create upstream->downstream links for course in database on new import.
+    Automatically create upstream->downstream links for course in database on new import or rerun.
     """
     course_data = kwargs.get("course", None)
     if not course_data or not isinstance(course_data, CourseData):

cms/djangoapps/contentstore/tasks.py

@@ -35,6 +35,8 @@ from olxcleaner.reporting import report_error_summary, report_errors
 from opaque_keys import InvalidKeyError
 from opaque_keys.edx.keys import CourseKey, UsageKey
 from opaque_keys.edx.locator import LibraryContainerLocator, LibraryLocator, BlockUsageLocator
+from openedx_events.content_authoring.data import CourseData
+from openedx_events.content_authoring.signals import COURSE_RERUN_COMPLETED
 from organizations.api import add_organization_course, ensure_organization
 from organizations.exceptions import InvalidOrganizationException
 from organizations.models import Organization
@@ -176,6 +178,12 @@ def rerun_course(source_course_key_string, destination_course_key_string, user_i
         # update state: Succeeded
         CourseRerunState.objects.succeeded(course_key=destination_course_key)
 
+        COURSE_RERUN_COMPLETED.send_event(
+            time=datetime.now(timezone.utc),
+            course=CourseData(
+                course_key=destination_course_key
+            )
+        )
         # call edxval to attach videos to the rerun
         copy_course_videos(source_course_key, destination_course_key)