public string Exjson(string pageIndex, string pageSize, int type)
{
if (string.IsNullOrEmpty(pageIndex) || string.IsNullOrEmpty(pageSize))
{
pageIndex = "1";
pageSize = "60";
}
int ipageIndex = Convert.ToInt32(pageIndex);
int ipageSize = Convert.ToInt32(pageSize);
ExperimentOperation eo = new ExperimentOperation();
long count = eo.SearchCount(u => u.experiment_isDel == false && u.experiment_class == type);
List <Experiment> experiments = eo.Search(u => u.experiment_isDel == false && u.experiment_class == type, i => i.experiment_title, ipageIndex, ipageSize);
StringBuilder sb = new StringBuilder();
string s = "{\"total\":" + count + ",\"rows\":[";
sb.Append(s);
foreach (Experiment e in experiments)
{
long id = e.experiment_id;
long chooseSNum = new ChooseOperation().SearchCount(u => u.choose_id == id && u.choose_isDel == false);
s = "{\"id\":\"" + e.experiment_id + "\",\"title\":\"" + e.experiment_title + "\",\"num\":\"" + chooseSNum + "\",\"max\":\"" + e.experiment_peopleNum + "\",\"btn\":\" <button class='btn' value='" + e.experiment_id + "' type='button'>选择</button>\"},";
sb.Append(s);
}
s = sb.ToString();
if (count > 0)
{
s = s.Substring(0, s.Length - 1);
}
return(s + "]}");
}
public JsonStatus ModifyStudentFromProject(string mark, string student_num, long projectId)
{
JsonStatus js = new JsonStatus();
List <Student> students = new StudentOperation().Search(d => d.student_number == student_num && d.student_isDel == false);
List <Experiment> experiments = new ExperimentOperation().Search(d => d.experiment_isDel == false && d.experiment_id == projectId);
if (experiments.Count >= 1)
{
if (students.Count >= 1)
{
switch (mark)
{
case "add":
{
if (base.SearchCount(d => d.Student.student_number == student_num && d.choose_isDel == false && d.Student.student_isDel == false) <= 0)
{
Choos c = new Choos()
{
choose_id = 1,
choose_isDel = false,
choose_ownExperimentId = projectId,
choose_ownStudentId = students[0].student_id
};
base.Add(c);
js.status = "1";
js.msg = "添加成功！";
}
else
{
js.status = "0";
js.msg = "添加失败！该学生已选择另一课题如要添加请先在另一表中删除！";
}
break;
}
case "remove":
{
List <Choos> chooses = base.Search(d => d.choose_isDel == false && d.Student.student_number == student_num && d.choose_ownExperimentId == projectId && d.choose_isDel == false);
if (chooses.Count >= 1)
{
chooses[0].choose_isDel = true;
base.Modify(chooses[0], "choose_isDel");
js.status = "1";
js.msg = "删除成功！";
}
else
{
js.status = "0";
js.msg = "删除失败！数据异常！";
}
break;
}
}
}
else
{
js.status = "0";
js.msg = mark == "add" ? "输入的学号不存在！请检查输入是否正确！" : "数据异常！";
}
}
else
{
js.status = "0";
js.msg = "操作失败！数据异常！";
}
return(js);
}
public JsonStatus ExpermentProjectChoose(string expirmentId, long studentId)
{
JsonStatus js = new JsonStatus();
List <Student> students = new StudentOperation().Search(m => m.student_id == studentId && m.student_isDel == false);
long pId = 0;
try
{
pId = Convert.ToInt64(expirmentId);
List <Experiment> experiments = new ExperimentOperation().Search(d => d.experiment_isDel == false && d.experiment_id == pId);
List <Choos> chooses = base.Search(d => d.choose_ownStudentId == studentId && d.choose_isDel == false && d.choose_ownExperimentId == pId);
if (students.Count >= 1 && experiments.Count >= 1)
{
if (experiments[0].experiment_allowGrades.Split(',').Contains(students[0].student_grade.ToString()))
{
if (experiments[0].experiment_peopleNum > base.SearchCount(d => d.choose_isDel == false && d.choose_ownExperimentId == pId))
{
if (chooses.Count == 0 && ((experiments[0].experiment_class == (int)ExpermentType.Graduate && base.SearchCount(d => d.choose_ownStudentId == studentId && d.choose_isDel == false && d.Experiment.experiment_class == (int)ExpermentType.Graduate) == 0) || experiments[0].experiment_class != (int)ExpermentType.Graduate))
{
try
{
Choos c = new Choos()
{
choose_id = 1,
choose_isDel = false,
choose_ownExperimentId = pId,
choose_ownStudentId = studentId,
};
base.Add(c);
js.status = "1";
js.msg = "选择成功！";
}
catch
{
js.status = "0";
js.msg = "选择失败！未知错误.....";
}
}
else
{
js.status = "0";
js.msg = "你已选择！不能再次选择！如要修改请联系管理员.....";
}
}
else
{
js.status = "0";
js.msg = "选择失败！人数已满.....";
}
}
else
{
js.status = "0";
js.msg = "选择失败！你现在无权选择.....";
}
}
else
{
js.status = "0";
js.msg = "选择失败！数据错误.....";
}
}
catch
{
js.status = "0";
js.msg = "选择失败！数据错误.....";
}
return(js);
}
