def get(self, request, course_id, file_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
file_queried: CourseDocument
try:
file_queried = CourseDocument.objects.get(course_id=course_id, file_course_document_id=file_id)
except CourseDocument.DoesNotExist:
return Response(dict({
"msg": "Requested course document does not exist.",
"courseId": course_id,
"fileId": file_id
}), status=404)
return Response(CourseDocumentSerializer(file_queried).data)
def get(self, request, course_id, homework_id, homework_file_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
try:
file_queried = HomeworkScore.objects.get(homework_id=homework_id, student_id=request.user.user_id)
except HomeworkScore.DoesNotExist:
return Response(dict({
"msg": "Requested homework file does not exist.",
"courseId": course_id,
"homeworkId": homework_id
}), status=404)
return Response(HomeworkScoreSerializer(file_queried).data, status=status.HTTP_200_OK)
def delete(self, request, course_id, course_chapter_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# reject
return Response(dict(
{"msg": "Forbidden. You are not the teacher."}),
status=403)
try:
courseChapterDescrption_to_delete = CourseChapterDescrption.objects.get(
course_id=course_id, course_chapter_id=course_chapter_id)
courseChapterDescrption_to_delete.delete()
except CourseChapterDescrption.DoesNotExist:
return Response(dict({
"msg": "Requested announcement does not exist.",
"courseId": course_id,
"announcement_id": id
}),
status=status.HTTP_404_NOT_FOUND)
return Response(status=status.HTTP_204_NO_CONTENT)
def post(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# reject
return Response(dict(
{"msg": "Forbidden. You are not the teacher."}),
status=403)
request_body_unicode = request.body.decode('utf-8')
request_body = json.loads(request_body_unicode)
new_announcement = Announcement(
course_id=course_id,
announcement_title=request_body["announcementTitle"],
announcement_contents=request_body["announcementContents"],
announcement_is_pinned=request_body["announcementIsPinned"],
announcement_publish_time=datetime.datetime.now(),
announcement_last_update_time=datetime.datetime.now(),
announcement_sender_id=request.user.user_id,
)
new_announcement.save()
return Response(AnnouncementSerializer(new_announcement).data)
def get(self, request, course_id, course_chapter_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
try:
selected_courseChapterDescrption = CourseChapterDescrption.objects.get(
course_id=course_id, course_chapter_id=course_chapter_id)
except CourseChapterDescrption.DoesNotExist:
return Response(dict({
"msg": "Requested chapter does not exist.",
"courseId": course_id,
"course_chapter_id": course_chapter_id
}),
status=status.HTTP_404_NOT_FOUND)
return Response(CourseChapterDescrptionSerializer(
selected_courseChapterDescrption).data,
status=status.HTTP_200_OK)
def get(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
response = {
"courseId":
course_id,
"announcementCount":
Announcement.objects.filter(course_id=course_id).count()
}
return Response(response)
def get(self, request, course_id, announcement_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
query_announcement = Announcement.objects.get(
course_id=course_id, announcement_id=announcement_id)
return Response(AnnouncementSerializer(query_announcement).data)
def delete(self, request, course_id, homework_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
try:
homework = Homework.objects.get(course_id=course_id, homework_id=homework_id)
homework.delete()
# FIXME: 外码约束，删除文件和学生提交记录和分数
return Response(status=status.HTTP_204_NO_CONTENT)
except Homework.DoesNotExist:
return Response(dict({
"msg": "No such homework found."
}), status=status.HTTP_404_NOT_FOUND)
def get(self, request, course_id, homework_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
try:
homework = Homework.objects.get(homework_id=homework_id)
return Response(HomeworkSerializer(homework).data, status=status.HTTP_200_OK)
except Homework.DoesNotExist:
return Response(dict({
"msg": "No such homework found."
}), status=status.HTTP_404_NOT_FOUND)
def put(self, request, course_id, homework_id, homework_file_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
request_body_unicode = request.body.decode('utf-8')
request_body = None
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
except json.decoder.JSONDecodeError:
return Response(dict({
"msg": "Invalid JSON string provided."
}), status=status.HTTP_400_BAD_REQUEST)
try:
file_queried = HomeworkFile.objects.get(file_homework_id=homework_file_id)
except HomeworkFile.DoesNotExist as e:
print(e.with_traceback)
return Response(dict({
"msg": "Requested homework file does not exist.",
"courseId": course_id,
"homeworkFileId": homework_file_id
}), status=404)
try:
file_score_queried = HomeworkScore.objects.get(homework_id=homework_id, student_id=file_queried.file_uploader)
file_score_queried.homework_score = request_body["homeworkScore"]
file_score_queried.homework_teachers_comments = request_body["homeworkTeachersComment"]
file_score_queried.homework_is_grade_available_to_students = request_body["homeworkIsGradeAvailable"]
file_score_queried.save()
except HomeworkScore.DoesNotExist:
file_score_queried = HomeworkScore(
homework_id=(Homework.objects.get(homework_id=homework_id)),
student_id=file_queried.file_uploader,
course_id=course_id,
homework_score=request_body["homeworkScore"],
homework_teachers_comments=request_body["homeworkTeachersComment"],
homework_is_grade_available_to_students=request_body["homeworkIsGradeAvailable"],
)
file_score_queried.save()
return Response(HomeworkScoreSerializer(file_score_queried).data, status=status.HTTP_200_OK)
def get(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
query_dict = request.query_params
need_pagination = False
pagination_page_size = -1
pagination_page_num = -1
if len(query_dict) != 0:
try:
pagination_page_num = int(query_dict['pageIndex'])
pagination_page_size = int(query_dict['itemCountOnOnePage'])
need_pagination = True
except KeyError:
pass
except ValueError:
# not an int
return Response(dict({
"msg": "Invaild pagination request."
}), status=status.HTTP_400_BAD_REQUEST)
except Exception as e:
return Response(str(e), status=status.HTTP_400_BAD_REQUEST)
response = []
all_homework = Homework.objects.filter(course_id=course_id)\
.order_by('homework_id')
if need_pagination:
pagination_start = (pagination_page_num - 1) * pagination_page_size
pagination_end = pagination_page_num * pagination_page_size
selected_homework = all_homework[pagination_start:pagination_end]
else:
selected_homework = all_homework
for item in selected_homework:
response.append(HomeworkSerializer(item).data)
return Response(response, status=status.HTTP_200_OK)
def post(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
request_body_unicode = request.body.decode('utf-8')
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
except json.decoder.JSONDecodeError:
return Response(dict({
"msg": "Invalid JSON string provided."
}), status=status.HTTP_400_BAD_REQUEST)
request_body = json.loads(request_body_unicode)
new_homework = Homework(
course_id=course_id,
homework_creator=request.request.user.user_id,
homework_title=request_body["homeworkTitle"],
homework_description=request_body["homeworkDescription"],
homework_start_timestamp=request_body["homeworkStartTime"],
homework_end_timestamp=request_body["homeworkEndTime"],
homework_create_timestamp=datetime.now(),
homework_update_timestamp=datetime.now(),
)
if new_homework.homework_start_timestamp > new_homework.homework_end_timestamp:
return Response(dict({
"msg": "End before start."
}), status=status.HTTP_400_BAD_REQUEST)
try:
new_homework.save()
except ValidationError as e:
return Response(dict({
"msg": f"Invalid parameter. Detail: {e.message}"
}), status=status.HTTP_400_BAD_REQUEST)
return Response(HomeworkSerializer(new_homework).data, status=status.HTTP_201_CREATED)
def put(self, request, course_id, course_chapter_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# reject
return Response(dict(
{"msg": "Forbidden. You are not the teacher."}),
status=403)
request_body = None
request_has_body = False
request_body_unicode = request.body.decode('utf-8')
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
request_has_body = True
except json.decoder.JSONDecodeError:
return Response(dict({"msg": "Invalid JSON string provided."}),
status=status.HTTP_400_BAD_REQUEST)
else:
return Response(dict(
{"msg": "Expect a JSON, but got empty contents instead."}),
status=status.HTTP_400_BAD_REQUEST)
try:
query_courseChapterDescrption = CourseChapterDescrption.objects.get(
course_id=course_id, course_chapter_id=course_chapter_id)
query_courseChapterDescrption.course_chapter_title = request_body[
"courseChapterTitle"]
query_courseChapterDescrption.course_chapter_mooc_link = request_body[
"courseChapterMoocLink"]
query_courseChapterDescrption.save()
except CourseChapterDescrption.DoesNotExist:
return Response(dict({
"msg": "Requested course chapter does not exist.",
"courseId": course_id,
"announcement_id": id
}),
status=status.HTTP_404_NOT_FOUND)
return Response(CourseChapterDescrptionSerializer(
query_courseChapterDescrption).data,
status=status.HTTP_200_OK)
def put(self, request, course_id, announcement_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# reject
return Response(dict(
{"msg": "Forbidden. You are not the teacher."}),
status=403)
request_has_body = False
request_body = None
request_body_unicode = request.body.decode('utf-8')
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
request_has_body = True
except json.decoder.JSONDecodeError:
return Response(dict({"msg": "Invalid JSON string provided."}),
status=400)
else:
return Response(dict(
{"msg": "Expect a JSON, but got empty contents instead."}),
status=400)
try:
query_announcement = Announcement.objects.get(
course_id=course_id, announcement_id=announcement_id)
except Announcement.DoesNotExist:
return Response(dict({
"msg": "Requested announcement does not exist.",
"courseId": course_id,
"announcement_id": announcement_id
}),
status=404)
query_announcement.announcement_title = request_body[
"announcementTitle"]
query_announcement.announcement_contents = request_body[
"announcementContents"]
query_announcement.announcement_is_pinned = request_body[
"announcementIsPinned"]
query_announcement.announcement_last_update_time = datetime.datetime.now(
)
query_announcement.save()
return Response(AnnouncementSerializer(query_announcement).data)
def get(self,
request,
course_id,
homework_id,
homework_file_id,
format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
file_queried: HomeworkFile
try:
file_queried = HomeworkFile.objects.get(
homework_id=homework_id, file_homework_id=homework_file_id)
# check student
if user_character == 4:
if file_queried.file_uploader != user_id:
return Response(dict({
"msg":
"You can not read other student's submission :("
}),
status=403)
except HomeworkFile.DoesNotExist:
return Response(dict({
"msg": "Requested homework file does not exist.",
"courseId": course_id,
"homeworkFileId": homework_file_id
}),
status=404)
file_token = file_queried.file_token
result_url = local_minio_client.presigned_url(
"GET",
DEFAULT_BUCKET,
file_token,
expires=DEFAULT_FILE_URL_TIMEOUT)
return HttpResponseRedirect(redirect_to=result_url)
def get(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
query_dict = request.query_params
need_pagination = False
pagination_page_size = -1
pagination_page_num = -1
if query_dict:
# find out whether the user requested for pagination
try:
pagination_page_size = int(query_dict["itemCountOnOnePage"])
pagination_page_num = int(query_dict["pageIndex"])
need_pagination = True
except KeyError:
pass
except ValueError:
# not an int
return Response(dict({"msg": "Invaild pagination request."}),
status=400)
response = []
all_announcement = Announcement.objects.filter(course_id=course_id)
all_announcement = all_announcement.order_by('announcement_id')
if need_pagination:
pagination_start = (pagination_page_num - 1) * pagination_page_size
pagination_end = pagination_page_num * pagination_page_size
selected_announcement = all_announcement[
pagination_start:pagination_end]
else:
selected_announcement = all_announcement
for item in selected_announcement:
response.append(AnnouncementSerializer(item).data)
return Response(response)
def course_detail(request, course_id):
"""
Retrieve or update a course instance.
"""
try:
course = Course.objects.get(pk=course_id)
except Course.DoesNotExist:
error_msg = {"detail": "object not exists"}
return Response(generate_response(error_msg, False),
status=status.HTTP_404_NOT_FOUND)
user_id = request.user.user_id
if request.user.character in [2, 3]:
if not is_teacher_teach_course(teacher_id=user_id,
course_id=course_id):
response_data = {"error_msg": 'permission denied'}
return Response(utils.generate_response(response_data, False),
status=status.HTTP_400_BAD_REQUEST)
elif request.user.character == 4:
if not is_student_within_course(student_id=user_id,
course_id=course_id):
response_data = {"error_msg": 'permission denied'}
return Response(utils.generate_response(response_data, False),
status=status.HTTP_400_BAD_REQUEST)
if request.method == 'GET':
serializer = CourseSerializers(course)
return Response(generate_response(serializer.data, True))
elif request.method == 'PUT':
teacher = User.objects.get(user_id=request.user.user_id)
if teacher.character not in [1]:
error_msg = {"detail": "没有权限"}
return Response(generate_response(error_msg, False),
status=status.HTTP_400_BAD_REQUEST)
serializer = CourseSerializers(course, data=request.data, partial=True)
if serializer.is_valid():
serializer.save()
return Response(generate_response(serializer.data, True))
return Response(generate_response(serializer.errors, False),
status=status.HTTP_400_BAD_REQUEST)
elif request.method == 'DELETE':
if request.user.character in [1]:
course.delete()
response_data = {"detail": "have delete"}
return Response(generate_response(response_data, True),
status=status.HTTP_204_NO_CONTENT)
else:
error_msg = {"detail": "没有权限"}
return Response(generate_response(error_msg, False),
status=status.HTTP_400_BAD_REQUEST)
def put(self, request, course_id, homework_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
request_body_unicode = request.body.decode('utf-8')
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
except json.decoder.JSONDecodeError:
return Response(dict({
"msg": "Invalid JSON string provided."
}), status=status.HTTP_400_BAD_REQUEST)
try:
homework = Homework.objects.get(course_id=course_id, homework_id=homework_id)
except Homework.DoesNotExist:
return Response(dict({
"msg": "No such homework found."
}), status=status.HTTP_404_NOT_FOUND)
request_body = json.loads(request_body_unicode)
homework.homework_title = request_body["homeworkTitle"]
homework.homework_description = request_body["homeworkDescription"]
homework.homework_start_timestamp = request_body["homeworkStartTime"]
homework.homework_end_timestamp = request_body["homeworkEndTime"]
homework.homework_update_timestamp = datetime.now()
if homework.homework_start_timestamp > homework.homework_end_timestamp:
return Response(dict({
"msg": "End before start."
}), status=status.HTTP_400_BAD_REQUEST)
homework.save()
return Response(HomeworkSerializer(homework).data, status=status.HTTP_200_OK)
def get(self, request, course_id, homework_id, student_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
# check if student is query his own file id
if not user_id == student_id:
return Response(dict(
{"msg": "You can not read other student's submission :("}),
status=403)
score_queried: HomeworkScore
try:
score_queried = HomeworkScore.objects.get(homework_id=homework_id,
student_id=student_id)
except HomeworkScore.DoesNotExist:
return Response(dict({
"msg": "Requested homework score does not exist.",
"courseId": course_id,
"homeworkId": homework_id
}),
status=404)
if score_queried.homework_is_grade_available_to_students == False and user_character == 4:
return Response(dict({
"msg":
"Requested homework score is not available to students now.",
"courseId": course_id,
"homeworkId": homework_id
}),
status=403)
return Response(HomeworkScoreSerializer(score_queried).data,
status=status.HTTP_200_OK)
def put(self, request, course_id, file_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# reject
return Response(dict(
{"msg": "Forbidden. You are not the teacher."}),
status=403)
request_has_body = False
request_body = None
request_body_unicode = request.body.decode('utf-8')
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
request_has_body = True
except json.decoder.JSONDecodeError:
return Response(dict({"msg": "Invalid JSON string provided."}),
status=400)
else:
return Response(dict(
{"msg": "Expect a JSON, but got empty contents instead."}),
status=400)
try:
file_queried = CourseDocument.objects.get(
course_id=course_id, file_course_document_id=file_id)
except CourseDocument.DoesNotExist:
return Response(dict({
"msg": "Requested course document does not exist.",
"courseId": course_id,
"fileId": file_id
}),
status=404)
file_queried.file_comment = request_body["fileComment"]
file_queried.save()
return Response(CourseDocumentSerializer(file_queried).data)
def post(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
request_body_unicode = request.body.decode('utf-8')
request_body = json.loads(request_body_unicode)
file_display_name = request_body["fileDisplayName"]
random_hex_string = ('%030x' % random.randrange(16**30))
file_token = f"{COURSE_DOCUMENT_PREFIX}/{course_id}/{random_hex_string}/{file_display_name}"
new_course_file = CourseDocument(
course_id=course_id,
file_display_name=file_display_name,
file_comment=request_body["fileComment"],
file_create_timestamp=datetime.datetime.now(),
file_update_timestamp=datetime.datetime.now(),
file_uploader=request.user.user_id,
file_token=file_token)
new_course_file.file_token = file_token
if not local_minio_client.bucket_exists(DEFAULT_BUCKET):
local_minio_client.make_bucket(DEFAULT_BUCKET)
put_url = local_minio_client.presigned_url("PUT",
DEFAULT_BUCKET,
file_token,
expires=DEFAULT_FILE_URL_TIMEOUT)
file_put_url_dict = {
"FILE_PUT_URL": put_url
}
new_course_file.save()
# This method is for Python 3.9+ only.
final_dict_to_return = dict(CourseDocumentSerializer(new_course_file).data) | file_put_url_dict
return Response(final_dict_to_return)
def post(self, request, course_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# reject
return Response(dict(
{"msg": "Forbidden. You are not the teacher."}),
status=403)
request_body_unicode = request.body.decode('utf-8')
request_body = json.loads(request_body_unicode)
new_courseChapterDescrption = CourseChapterDescrption(
course_id=course_id,
course_chapter_id=request_body["courseChapterId"],
course_chapter_title=request_body["courseChapterTitle"],
course_chapter_mooc_link=request_body["courseChapterMoocLink"],
)
if CourseChapterDescrption.objects\
.filter(course_id=new_courseChapterDescrption.course_id, course_chapter_id=new_courseChapterDescrption.course_chapter_id).exists():
return Response(dict({
"error":
"Course chapter already existed, use another API if you want to modify it."
}),
status=400)
else:
new_courseChapterDescrption.save()
return Response(CourseChapterDescrptionSerializer(
new_courseChapterDescrption).data,
status=status.HTTP_201_CREATED)
def get(self, request, course_id, file_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
file_queried: CourseDocument
try:
file_queried = CourseDocument.objects.get(
course_id=course_id, file_course_document_id=file_id)
except CourseDocument.DoesNotExist:
return Response(dict({
"msg": "Requested file does not exist.",
"courseId": course_id,
"fileId": file_id
}),
status=404)
file_token = file_queried.file_token
result_url = local_minio_client.presigned_url(
"GET",
DEFAULT_BUCKET,
file_token,
expires=DEFAULT_FILE_URL_TIMEOUT)
return HttpResponseRedirect(redirect_to=result_url)
def get(self, request, course_id, homework_id, file_uploader, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
# check if student is query his own file id
if not user_id == file_uploader:
return Response(dict(
{"msg": "You can not read other student's submission :("}),
status=403)
file_queried: HomeworkFile
try:
file_queried = HomeworkFile.objects.get(
homework_id=homework_id, file_uploader=file_uploader)
except HomeworkFile.DoesNotExist:
return Response(dict({
"msg": "Requested homework file does not exist.",
"courseId": course_id,
"studentId": file_uploader
}),
status=404)
return Response(HomeworkFileSerializer(file_queried).data,
status=status.HTTP_200_OK)
def delete(self, request, course_id, file_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
try:
file_to_delete = CourseDocument.objects.get(course_id=course_id, file_course_document_id=file_id)
item_token_to_delete = file_to_delete.file_token
local_minio_client.remove_object(
DEFAULT_BUCKET,
item_token_to_delete
)
file_to_delete.delete()
except CourseDocument.DoesNotExist:
return Response(dict({
"msg": "Requested course document does not exist.",
"courseId": course_id,
"fileId": file_id
}), status=404)
return Response(dict({
"msg": "Deleted."
}))
def get(self, request, course_id, homework_id, format=None):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict({
"msg": "Forbidden. You are not within course."
}), status=403)
elif user_character == 4:
# student
# reject
return Response(dict({
"msg": "Forbidden. You are not the teacher."
}), status=403)
query_dict = request.query_params
need_pagination = False
pagination_page_size = -1
pagination_page_num = -1
if len(query_dict) != 0:
try:
pagination_page_num = int(query_dict['pageIndex'])
pagination_page_size = int(query_dict['itemCountOnOnePage'])
need_pagination = True
except KeyError:
pass
except ValueError:
# not an int
return Response(dict({
"msg": "Invaild pagination request."
}), status=status.HTTP_400_BAD_REQUEST)
response = []
all_homeworkFiles = HomeworkFile.objects.filter(homework_id=homework_id)\
.order_by('homework_id')
if need_pagination:
pagination_start = (pagination_page_num - 1) * pagination_page_size
pagination_end = pagination_page_num * pagination_page_size
selected_homeworkFiles = all_homeworkFiles[pagination_start:pagination_end]
else:
selected_homeworkFiles = all_homeworkFiles
for item in selected_homeworkFiles:
tmp_file_info = HomeworkFileSerializer(item).data
student_id = tmp_file_info['file_uploader']
score_queried: HomeworkScore
try:
score_queried = HomeworkScore.objects.get(homework_id=homework_id, student_id=student_id)
homework_score = score_queried.homework_score
except HomeworkScore.DoesNotExist:
homework_score = 0
tmp_file_info['homework_score'] = homework_score
response.append(tmp_file_info)
return Response(response, status=status.HTTP_200_OK)
def get(self, request, course_id, *args, **kwargs):
user_character = request.user.character
user_id = request.user.user_id
# all within this class
# TODO: change to match when comes to Python 3.10
if user_character == 1:
# charging teacher
pass
elif user_character == 2 or user_character == 3:
# teacher or teaching assistant
# check if this teacher teaches this course
if not is_teacher_teach_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
elif user_character == 4:
# student
# check if student is within this course
if not is_student_within_course(user_id, course_id):
return Response(dict(
{"msg": "Forbidden. You are not within course."}),
status=403)
query_dict = request.query_params
request_body = None
request_has_body = False
need_pagination = False
pagination_page_size = -1
pagination_page_num = -1
request_body_unicode = request.body.decode('utf-8')
if len(request_body_unicode) != 0:
try:
request_body = json.loads(request_body_unicode)
request_has_body = True
except json.decoder.JSONDecodeError:
return Response(dict({"msg": "Invalid JSON string provided."}),
status=400)
if request_has_body:
# find out whether the user requested for pagination
try:
pagination_page_size = query_dict["itemCountOnOnePage"]
pagination_page_num = query_dict["pageIndex"]
need_pagination = True
except KeyError:
pass
response = []
all_courseChapterDescrption = CourseChapterDescrption.objects.filter(course_id=course_id)\
.order_by('course_chapter_description_id')
if need_pagination:
pagination_start = (pagination_page_num - 1) * pagination_page_size
pagination_end = pagination_page_num * pagination_page_size
selected_courseChapterDescrption = all_courseChapterDescrption[
pagination_start:pagination_end]
else:
selected_courseChapterDescrption = all_courseChapterDescrption
for item in selected_courseChapterDescrption:
response.append(CourseChapterDescrptionSerializer(item).data)
return Response(response, status=status.HTTP_200_OK)