def iter_program_course_grades(program_uuid,
course_key,
paginate_queryset_fn=None):
"""
Load grades (or grading errors) for a given program-course.
Arguments:
program_uuid (str)
course_key (CourseKey)
paginate_queryset_fn (QuerySet -> QuerySet):
Optional function to paginate the results,
generally passed in from `self.request.paginate_queryset`
on a paginated DRF `APIView`.
If `None`, all results will be loaded and returned.
Returns: generator[BaseProgramCourseGrade]
"""
enrollments_qs = fetch_program_course_enrollments(
program_uuid=program_uuid,
course_key=course_key,
realized_only=True,
).select_related(
'program_enrollment',
'program_enrollment__user',
).using(read_replica_or_default())
enrollments = (paginate_queryset_fn(enrollments_qs)
if paginate_queryset_fn else enrollments_qs)
if not enrollments:
return []
return _generate_grades(course_key, list(enrollments))
def get(self, request, program_uuid=None):
""" Defines the GET list endpoint for ProgramEnrollment objects. """
enrollments = fetch_program_enrollments(self.program_uuid).using(
read_replica_or_default())
paginated_enrollments = self.paginate_queryset(enrollments)
serializer = ProgramEnrollmentSerializer(paginated_enrollments,
many=True)
return self.get_paginated_response(serializer.data)
def get(self, request, program_uuid=None, course_id=None):
"""
Get a list of students enrolled in a course within a program.
"""
enrollments = fetch_program_course_enrollments(
program_uuid,
course_id).select_related('program_enrollment').using(
read_replica_or_default())
paginated_enrollments = self.paginate_queryset(enrollments)
serializer = ProgramCourseEnrollmentSerializer(paginated_enrollments,
many=True)
return self.get_paginated_response(serializer.data)
