def publish_homework(request, post_data):
"""
老师发布作业
:param request:
:param post_data:
"""
account = post_data.get('account')
course_id = post_data.get('course_id')
tasks = post_data.get('task')
role = get_user_role(account)
if role != UserRole.TEACHER.value:
raise ValidationError('only teacher can publish homework')
course = COURSE.objects.filter(course_id=course_id).first()
if not course:
raise ValidationError('course id does not exist')
homework = json.loads(course.homework)
if not homework.get('task'):
# 初始化作业表
homework['task'] = []
homework['status'] = CourseStatus.NOT_START.value
homework['start_time'] = post_data.get('start_time', int(time.time()))
homework['finish_time'] = post_data.get('finish_time', int(time.time()))
homework['task'] += tasks
course.homework = json.dumps(homework)
course.save()
return ObjectStatus.SUCCESS.value
def get_course_room(request, post_data):
"""
获取房间链接
:param request:
:param post_data:
"""
account = post_data.get('account')
course_id = post_data.get('course_id')
role = get_user_role(account)
room_url = get_room_url(course_id, role)
if role == UserRole.STUDENT.value:
room_url.replace(RoomRole.HOST.value, RoomRole.GUEST.value)
index = room_url[:-1].rfind('/') + 1
return room_url[:index] + account + '/'
def publish_course(request, post_data):
"""
学生发布课程任务
:param request:
:param post_data:
"""
account = post_data.get('account')
role = get_user_role(account)
data = post_data.get('course_info', {})
data['course_id'] = random_str(8)
data['status'] = CourseStatus.NOT_START.value
data["info"] = json.dumps(data.get('info', {}))
data['s_account'] = account if role == UserRole.STUDENT.value else ObjectStatus.UNDEFINED.value
data['t_account'] = account if role == UserRole.TEACHER.value else ObjectStatus.UNDEFINED.value
return ObjectStatus.SUCCESS.value if COURSE.objects.create(**data) else ObjectStatus.FAILED.value
def check_course(request, post_data):
"""
认领课程
:param request:
:param post_data:
"""
account = post_data.get('account')
course_id = post_data.get("course_id")
role = get_user_role(account)
query = Q(course_id=course_id)
if role == UserRole.STUDENT.value:
status = COURSE.objects.select_for_update().filter(
query and Q(s_account=ObjectStatus.UNDEFINED.value)).update(s_account=account)
else:
status = COURSE.objects.select_for_update().filter(
query and Q(t_account=ObjectStatus.UNDEFINED.value)).update(t_account=account)
return ObjectStatus.SUCCESS.value if status else ObjectStatus.FAILED.value
def correct_homework(request, post_data):
"""
老师批改作业
:param request:
:param post_data:
"""
account = post_data.get('account')
course_id = post_data.get('course_id')
score = post_data.get('score')
role = get_user_role(account)
if role != UserRole.TEACHER.value:
raise ValidationError('only teacher can correct homework')
course = COURSE.objects.filter(course_id=course_id).first()
if not course:
raise ValidationError('course id does not exist')
homework = json.loads(course.homework)
if homework['finish_time'] >= int(time.time()):
raise ValidationError('the homework is not over yet')
homework['score'] = score
course.homework = json.dumps(homework)
course.save()
return ObjectStatus.SUCCESS.value
def search_pending(request, post_data):
"""
查找和自己有关的请求
:param request:
:param post_data:
:return:
"""
re = []
account = post_data.get("account")
obj = PENDING.objects.filter(Q(another_id=account) | Q(applicant_id=account))
obj1 = obj.filter(another_id=account, another_op='').order_by("-_t")
re.append("need my opinion")
for ob in obj1:
dic = {"course_id": ob.course_id, "info": ob.info, "applicant": ob.applicant_id}
re.append(dic)
re.append("my pending")
obj2 = obj.filter(applicant_id=account).order_by("-_t")
for ob in obj2:
if get_user_role(ob.another_id) == UserRole.STUDENT.value:
dic = {"course_id": ob.course_id, "student_op": ob.another_op, "admin_op": ob.admin_op}
else:
dic = {"course_id": ob.course_id, "teacher_op": ob.another_op, "admin_op": ob.admin_op}
re.append(dic)
return re
def get_homework(request, post_data):
"""
老师或学生获取作业
:param request:
:param post_data:
"""
account = post_data.get('account')
course_id = post_data.get('course_id')
role = get_user_role(account)
course = COURSE.objects.filter(course_id=course_id).first()
if not course:
raise ValidationError('course id does not exist')
homework = json.loads(course.homework)
if role == UserRole.STUDENT.value and homework['start_time'] > int(time.time()):
raise ValidationError('the homework has not started')
if homework['status'] == CourseStatus.NOT_START.value:
homework['status'] = CourseStatus.ONGOING.value
if homework['finish_time'] <= int(time.time()):
homework['status'] = CourseStatus.FINISH.value
homework = json.dumps(homework)
if course.homework != homework:
course.homework = homework
course.save()
return homework