public ActionResult Info()
{
try
{
Stream req = Request.Body;
string json = new StreamReader(req).ReadToEnd();
w2uiJsonFormPostModel <Group> model = null;
try
{
model = JsonConvert.DeserializeObject <w2uiJsonFormPostModel <Group> >(json);
}
catch (Exception ex)
{
return(Json(w2uiBaseModel.Error(ex)));
}
if (model.cmd == "save-record")
{
if (!TryValidateModel(model.record, nameof(Student)))
{
var errors = ModelState
.Values
.Select(el => el.Errors.Select(m => m.ErrorMessage).FirstOrDefault())
.ToList();
var msg = string.Join(", ", errors);
return(Json(w2uiBaseModel.Error(msg)));
}
;
var record = model.record;
var gr = _db.Groups.FirstOrDefault(el => el.Id == record.Id);
if (gr == null)
{
throw new Exception("Не найдена группа");
}
gr.Title = record.Title;
_db.SaveChanges();
}
return(Json(new w2uiBaseModel()));
}
catch (Exception ex)
{
return(Json(w2uiBaseModel.Error(ex)));
}
}
public ActionResult Info()
{
try
{
Stream req = Request.Body;
string json = new StreamReader(req).ReadToEnd();
w2uiJsonFormPostModel <StudentAPI> model = null;
try
{
model = JsonConvert.DeserializeObject <w2uiJsonFormPostModel <StudentAPI> >(json);
}
catch (Exception ex)
{
return(Json(w2uiBaseModel.Error(ex)));
}
if (model.cmd == "save-record")
{
var record = model.record;
//чтобы не записывалась пустая строка
if (string.IsNullOrEmpty(record.CallSign))
{
record.CallSign = null;
}
if (!TryValidateModel(record, nameof(Student)))
{
var errors = ModelState
.Values
.Select(el => el.Errors.Select(m => m.ErrorMessage).FirstOrDefault())
.ToList();
var msg = string.Join(", ", errors);
return(Json(w2uiBaseModel.Error(msg)));
}
;
var st = _db.Students.FirstOrDefault(el => el.Id == record.Id);
if (st == null)
{
throw new Exception("Не найден student");
}
var oldGroupList = _db
.UserInGroups
.Where(el => el.UserId == st.Id)
.Select(el => el.GroupId)
.ToList();
var newGroupList = record.Groups.Select(el => el.id).ToList();
//на добавление
var forAddIds = newGroupList.Except(oldGroupList).ToList();
var forAdd = forAddIds.Select(
el => new UserInGroup
{
GroupId = el,
UserId = record.Id
})
.ToList();
//на удаление
var forDelIds = oldGroupList.Except(newGroupList).ToList();
var forDel = _db.UserInGroups.Where(el => forDelIds.Contains(el.GroupId));
st.FirstName = record.FirstName;
st.GenderId = record.GenderId;
st.LastName = record.LastName;
st.SecondName = record.SecondName;
st.CallSign = record.CallSign;
_db.SaveChanges();
_db.UserInGroups.AddRange(forAdd);
_db.UserInGroups.RemoveRange(forDel);
_db.SaveChanges();
}
return(Json(new w2uiBaseModel()));
}
catch (Exception ex)
{
return(Json(w2uiBaseModel.Error(ex)));
}
}
