public string AddChooseStu(string id, string exid)
{
try
{
List <Student> stus = Search(u => u.student_number == id && u.student_isDel == false);
if (stus.Count == 0)
{
return("没有此学号的学生");
}
else if (stus.Count > 1)
{
return("学号重复，添加失败");
}
ChooseOperation co = new ChooseOperation();
long stuid = stus[0].student_id;
long experId = Convert.ToInt64(exid);
long count = co.SearchCount(u => u.choose_ownStudentId == stuid && u.choose_isDel == false && u.choose_ownExperimentId == experId);
if (count > 0)
{
return("此同学已经存在，请勿重新添加");
}
Choos c = new Choos();
c.choose_isDel = false;
c.choose_ownExperimentId = Convert.ToInt64(exid);
c.choose_ownStudentId = stus[0].student_id;
co.Add(c);
}
catch
{
return("未知错误");
}
return("ok");
}
public BaseController()
{
db = new BemaxEntities();
Slider = db.Sliders.FirstOrDefault();
Advisor = db.Advisors.FirstOrDefault();
OurWork = db.OurWorks.FirstOrDefault();
Project = db.Projects.FirstOrDefault();
Choose = db.Chooses.FirstOrDefault();
Post = db.Posts.FirstOrDefault();
Tester = db.Testers.FirstOrDefault();
Partner = db.Partners.FirstOrDefault();
Reason = db.Reasons.FirstOrDefault();
Team = db.Teams.FirstOrDefault();
Testimonial = db.Testimonials.FirstOrDefault();
}
