def teach_list(request):
"""
List all teach relations, or create a new tech relation.
"""
if request.method == 'GET':
teach_list = Teach.objects.all()
serializer = TeachSerializers(teach_list, many=True)
answer = serializer.data
for index, teach in enumerate(answer):
course_id = teach['course_id']
course_info = CourseSerializers(Course.objects.get(course_id=course_id)).data
answer[index]['course_name'] = course_info['course_name']
answer[index]['course_description'] = course_info['course_description']
answer[index]['course_credit'] = course_info['course_credit']
return Response(generate_response(serializer.data, True))
elif request.method == 'POST':
teacher_id = request.data['teacher_id']
try:
teacher = User.objects.get(user_id=teacher_id)
except ObjectDoesNotExist:
error_msg = {"detail": "被邀请人ID不存在"}
return Response(generate_response(error_msg, False), status=status.HTTP_404_NOT_FOUND)
teacher = User.objects.get(pk=teacher_id)
if teacher.character not in [2, 3]:
error_msg = {"detail": "被邀请人身份不符合要求"}
return Response(generate_response(error_msg, False), status=status.HTTP_400_BAD_REQUEST)
serializer = TeachSerializers(data=request.data)
if serializer.is_valid():
serializer.save()
return Response(generate_response(serializer.data, True), status=status.HTTP_201_CREATED)
return Response(generate_response(serializer.errors, False), status=status.HTTP_400_BAD_REQUEST)
def teach_detail(request, teach_id):
"""
delete a teach relation.
"""
try:
teach = Teach.objects.get(pk=teach_id)
except Teach.DoesNotExist:
error_msg = {"detail": "object not exists"}
return Response(generate_response(error_msg, False), status=status.HTTP_404_NOT_FOUND)
teach.delete()
msg = {"detail": "has been deleted successfully"}
return Response(generate_response(msg, True), status=status.HTTP_204_NO_CONTENT)
def courses_list(request):
"""
List all courses, or create a new course.
"""
if request.method == 'GET':
user_id = request.user.user_id
if request.user.character in [2, 3]:
teaches_objects = Teach.objects.filter(teacher_id=user_id)
teaches_list = TeachSerializers(teaches_objects, many=True).data
course_list = []
for teach in teaches_list:
course = CourseSerializers(Course.objects.get(course_id=teach['course_id'])).data
course_list.append(course)
elif request.user.character == 1:
course_list = CourseSerializers(Course.objects.all(), many=True).data
else:
# for student
takes_list = TakeCourseSerializer(TakeCourse.objects.filter(student_id=user_id), many=True).data
course_list = []
for take in takes_list:
course = CourseSerializers(Course.objects.get(course_id=take['course_id'])).data
course_list.append(course)
return Response(generate_response(course_list, True))
elif request.method == 'POST':
serializer = CourseSerializers(data=request.data)
if request.user.character in [2, 3, 4]:
response_data = {"error_msg": 'permission denied'}
return Response(utils.generate_response(response_data, False), status=status.HTTP_400_BAD_REQUEST)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
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 take_list(request):
if request.method == 'GET':
take_list = TakeCourse.objects.all()
serializer = TakeCourseSerializer(take_list, many=True)
answer = serializer.data
for index, take in enumerate(answer):
course_id = take['course_id']
course_info = CourseSerializers(
Course.objects.get(course_id=course_id)).data
answer[index]['course_name'] = course_info['course_name']
answer[index]['course_description'] = course_info[
'course_description']
answer[index]['course_credit'] = course_info['course_credit']
user_id = take['student_id']
student = User.objects.get(pk=user_id)
answer[index]['email'] = student.email
answer[index]['realname'] = student.realname
answer[index]['student_user_id'] = answer[index]['student_id']
answer[index]['student_id'] = student.personal_id
return Response(generate_response(serializer.data, True))