public async Task <IActionResult> DeselectTopic([FromRoute] long groupId, [FromRoute] long topicId)
{
try
{
if (User.Type() != Type.Student)
{
return(StatusCode(403, new { msg = "权限不足" }));
}
await _topicService.DeleteSeminarGroupTopicByIdAsync(groupId, topicId);
return(NoContent());
}
catch (GroupNotFoundException)
{
return(StatusCode(404, new { msg = "没有找到该课程" }));
}
catch (ArgumentException)
{
return(StatusCode(400, new { msg = "组号格式错误" }));
}
}