def graded_subsections_for_course_id(course_id):
"""
Return graded subsections for the course.
"""
from lms.djangoapps.grades.context import graded_subsections_for_course
return graded_subsections_for_course(
course_data.CourseData(user=None,
course_key=course_id).collected_structure)
def get(self, request, course_key):
"""
Returns a gradebook entry/entries (i.e. both course and subsection-level grade data)
for all users enrolled in a course, or a single user enrolled in a course
if a `username` parameter is provided.
Args:
request: A Django request object.
course_key: The edx course opaque key of a course object.
"""
course = get_course_by_id(course_key, depth=None)
# We fetch the entire course structure up-front, and use this when iterating
# over users to determine their subsection grades. We purposely avoid fetching
# the user-specific course structure for each user, because that is very expensive.
course_data = CourseData(user=None, course=course)
graded_subsections = list(graded_subsections_for_course(course_data.collected_structure))
if request.GET.get('username'):
with self._get_user_or_raise(request, course_key) as grade_user:
course_grade = CourseGradeFactory().read(grade_user, course)
entry = self._gradebook_entry(grade_user, course, graded_subsections, course_grade)
serializer = StudentGradebookEntrySerializer(entry)
return Response(serializer.data)
else:
filter_kwargs = {}
related_models = []
if request.GET.get('username_contains'):
filter_kwargs['user__username__icontains'] = request.GET.get('username_contains')
related_models.append('user')
if request.GET.get('cohort_id'):
cohort = cohorts.get_cohort_by_id(course_key, request.GET.get('cohort_id'))
if cohort:
filter_kwargs['user__in'] = cohort.users.all()
else:
filter_kwargs['user__in'] = []
if request.GET.get('enrollment_mode'):
filter_kwargs['mode'] = request.GET.get('enrollment_mode')
entries = []
users = self._paginate_users(course_key, filter_kwargs, related_models)
with bulk_gradebook_view_context(course_key, users):
for user, course_grade, exc in CourseGradeFactory().iter(
users, course_key=course_key, collected_block_structure=course_data.collected_structure
):
if not exc:
entries.append(self._gradebook_entry(user, course, graded_subsections, course_grade))
serializer = StudentGradebookEntrySerializer(entries, many=True)
return self.get_paginated_response(serializer.data)