LEARNER-5050: Adds in str serialization for celery tasks

openedx/core/djangoapps/programs/signals.py

@@ -94,4 +94,4 @@ def handle_course_cert_changed(sender, user, course_key, mode, status, **kwargs)
     )
     # import here, because signal is registered at startup, but items in tasks are not yet able to be loaded
     from openedx.core.djangoapps.programs.tasks.v1.tasks import award_course_certificate
-    award_course_certificate.delay(user.username, course_key)
+    award_course_certificate.delay(user.username, str(course_key))

openedx/core/djangoapps/programs/tasks/v1/tasks.py

@@ -7,6 +7,7 @@ from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.sites.models import Site
 from edx_rest_api_client import exceptions
+from opaque_keys.edx.keys import CourseKey
 
 from course_modes.models import CourseMode
 from lms.djangoapps.certificates.models import GeneratedCertificate
@@ -16,7 +17,6 @@ from openedx.core.djangoapps.credentials.models import CredentialsApiConfig
 from openedx.core.djangoapps.credentials.utils import get_credentials, get_credentials_api_client
 from openedx.core.djangoapps.programs.utils import ProgramProgressMeter
 
-
 LOGGER = get_task_logger(__name__)
 # Under cms the following setting is not defined, leading to errors during tests.
 ROUTING_KEY = getattr(settings, 'CREDENTIALS_GENERATION_ROUTING_KEY', None)
@@ -221,7 +221,6 @@ def award_course_certificate(self, username, course_run_key):
     This task is designed to be called whenever a student GeneratedCertificate is updated.
     It can be called independently for a username and a course_run, but is invoked on each GeneratedCertificate.save.
     """
-
     LOGGER.info('Running task award_course_certificate for username %s', username)
 
     countdown = 2 ** self.request.retries
@@ -238,6 +237,7 @@ def award_course_certificate(self, username, course_run_key):
         raise self.retry(countdown=countdown, max_retries=MAX_RETRIES)
 
     try:
+        course_key = CourseKey.from_string(course_run_key)
         try:
             user = User.objects.get(username=username)
         except User.DoesNotExist:
@@ -248,27 +248,27 @@ def award_course_certificate(self, username, course_run_key):
         try:
             certificate = GeneratedCertificate.eligible_certificates.get(
                 user=user.id,
-                course_id=course_run_key
+                course_id=course_key
             )
         except GeneratedCertificate.DoesNotExist:
             LOGGER.exception(
                 'Task award_course_certificate was called without Certificate found for %s to user %s',
-                course_run_key,
+                course_key,
                 username
             )
             return
         if certificate.mode in CourseMode.VERIFIED_MODES + CourseMode.CREDIT_MODES:
             try:
-                course_overview = CourseOverview.get_from_id(course_run_key)
+                course_overview = CourseOverview.get_from_id(course_key)
             except (CourseOverview.DoesNotExist, IOError):
                 LOGGER.exception(
                     'Task award_course_certificate was called without course overview data for course %s',
-                    course_run_key
+                    course_key
                 )
                 return
             credentials_client = get_credentials_api_client(User.objects.get(
                 username=settings.CREDENTIALS_SERVICE_USERNAME),
-                org=course_run_key.org,
+                org=course_key.org,
             )
             # FIXME This may result in visible dates that do not update alongside the Course Overview if that changes
             # This is a known limitation of this implementation and was chosen to reduce the amount of replication,
@@ -276,7 +276,7 @@ def award_course_certificate(self, username, course_run_key):
             visible_date = display_date_for_certificate(course_overview, certificate)
             post_course_certificate(credentials_client, username, certificate, visible_date)
 
-            LOGGER.info('Awarded certificate for course %s to user %s', course_run_key, username)
+            LOGGER.info('Awarded certificate for course %s to user %s', course_key, username)
     except Exception as exc:
         LOGGER.exception('Failed to determine course certificates to be awarded for user %s', username)
         raise self.retry(exc=exc, countdown=countdown, max_retries=MAX_RETRIES)

openedx/core/djangoapps/programs/tasks/v1/tests/test_tasks.py

@@ -392,7 +392,7 @@ class AwardCourseCertificatesTestCase(CredentialsApiConfigMixin, TestCase):
         """
         Tests the API POST method is called with appropriate params when configured properly
         """
-        tasks.award_course_certificate.delay(self.student.username, self.course.id).get()
+        tasks.award_course_certificate.delay(self.student.username, str(self.course.id)).get()
         call_args, _ = mock_post_course_certificate.call_args
         self.assertEqual(call_args[1], self.student.username)
         self.assertEqual(call_args[2], self.certificate)
@@ -404,7 +404,7 @@ class AwardCourseCertificatesTestCase(CredentialsApiConfigMixin, TestCase):
         self.create_credentials_config(enabled=False)
         with mock.patch(TASKS_MODULE + '.LOGGER.warning') as mock_warning:
             with self.assertRaises(MaxRetriesExceededError):
-                tasks.award_course_certificate.delay(self.student.username, self.course.id).get()
+                tasks.award_course_certificate.delay(self.student.username, str(self.course.id)).get()
         self.assertTrue(mock_warning.called)
         self.assertFalse(mock_post_course_certificate.called)
 
@@ -414,7 +414,7 @@ class AwardCourseCertificatesTestCase(CredentialsApiConfigMixin, TestCase):
         """
         with mock.patch(TASKS_MODULE + '.LOGGER.exception') as mock_exception:
             # Use a random username here since this user won't be found in the DB
-            tasks.award_course_certificate.delay('random_username', self.course.id).get()
+            tasks.award_course_certificate.delay('random_username', str(self.course.id)).get()
         self.assertTrue(mock_exception.called)
         self.assertFalse(mock_post_course_certificate.called)
 
@@ -424,7 +424,7 @@ class AwardCourseCertificatesTestCase(CredentialsApiConfigMixin, TestCase):
         """
         self.certificate.delete()
         with mock.patch(TASKS_MODULE + '.LOGGER.exception') as mock_exception:
-            tasks.award_course_certificate.delay(self.student.username, self.course.id).get()
+            tasks.award_course_certificate.delay(self.student.username, str(self.course.id)).get()
         self.assertTrue(mock_exception.called)
         self.assertFalse(mock_post_course_certificate.called)
 
@@ -435,7 +435,7 @@ class AwardCourseCertificatesTestCase(CredentialsApiConfigMixin, TestCase):
         self.course.delete()
         with mock.patch(TASKS_MODULE + '.LOGGER.exception') as mock_exception:
             # Use the certificate course id here since the course will be deleted
-            tasks.award_course_certificate.delay(self.student.username, self.certificate.course_id).get()
+            tasks.award_course_certificate.delay(self.student.username, str(self.certificate.course_id)).get()
         self.assertTrue(mock_exception.called)
         self.assertFalse(mock_post_course_certificate.called)
 
@@ -449,5 +449,5 @@ class AwardCourseCertificatesTestCase(CredentialsApiConfigMixin, TestCase):
         self.certificate.save()
         self.create_credentials_config()
 
-        tasks.award_course_certificate.delay(self.student.username, self.certificate.course_id).get()
+        tasks.award_course_certificate.delay(self.student.username, str(self.certificate.course_id)).get()
         self.assertFalse(mock_post_course_certificate.called)