/***
* function: Add()
* param : DMDiemIn
* result: int
* author: vietvb
* Thêm dữ liệu, trả ra id
* */
public int Add(DMDiemInModel DMDiemIn)
{
db.DMDiemIns.Add(DMDiemIn.toCreate());
return db.SaveChanges();
}
/***
* function: Update()
* param : DMDiemIn
* result: int
* author: vietvb
* Update dữ liệu, trả ra id
* */
public int Update(DMDiemInModel diemIn)
{
//get old data
DMDiemIn Old = db.DMDiemIns.Find(diemIn.Id);
diemIn.changeEdit(Old);
//edit
db.Entry(Old).State = EntityState.Modified;
return db.SaveChanges();
}