public ActionResult DangKyHocPhan(List <string> DanhSachHocPhan, List <string> MonHoc)
{
if (!isUserNameExist())
{
return(RedirectToAction("Index"));
}
//Create client connection to our MongoDB database
var client = new MongoClient(new configWEB().connectionstring);
//Create a session object that is used when leveraging transactions
MonHocModel monHocModel = new MonHocModel();
HocPhanModel hocPhanModel = new HocPhanModel();
AccountModel accountModel = new AccountModel();
Account account = new AccountModel().find_username(Session[currentAccount].ToString());
List <string> HocPhanDaDangKy_OLD = account.HocPhanDaDangKy;
List <bool> trungID = new List <bool>();
for (int i = 0; i < HocPhanDaDangKy_OLD.Count(); i++)
{
if (HocPhanDaDangKy_OLD[i] == DanhSachHocPhan[i])
{
trungID.Add(true);
}
else
{
trungID.Add(false);
}
}
string monHoc_Success = "";
string monHoc_ThatBai = "";
bool isThatBai = false;
if (account != null)
{
using (var session = client.StartSession())
{
account.Status = true;
accountModel.update(account);
session.StartTransaction(new TransactionOptions(
readConcern: ReadConcern.Snapshot,
writeConcern: WriteConcern.WMajority));
try
{
account.Status = false;
account.HocPhanDaDangKy = DanhSachHocPhan;
accountModel.updateHocPhanDaDangKy(account, session);
for (int i = 0; i < DanhSachHocPhan.Count(); i++)
{
if (DanhSachHocPhan[i] != "")
{
while (monHocModel.getHocphan(MonHoc[i], account.HocPhanDaDangKy[i]).Status == true)
{
if (monHocModel.getHocphan(MonHoc[i], account.HocPhanDaDangKy[i]).Status == false)
{
break;
}
}
monHocModel.lockHocPhan(DanhSachHocPhan[i]);
if (monHocModel.ConLai(account.HocPhanDaDangKy[i],
monHocModel.getHocphan(MonHoc[i],
account.HocPhanDaDangKy[i]).SiSo) > 0 || trungID[i] == true)
{
monHoc_Success = monHoc_Success + ", " + monHocModel.find(MonHoc[i]).TenMonHoc + " ";
}
else
{
monHoc_ThatBai = monHoc_ThatBai + ", " + monHocModel.find(MonHoc[i]).TenMonHoc + " ";
isThatBai = true;
}
}
}
Thread.Sleep(3000);
for (int i = 0; i < DanhSachHocPhan.Count(); i++)
{
if (DanhSachHocPhan[i] != "")
{
monHocModel.unlockHocPhan(DanhSachHocPhan[i]);
}
}
if (isThatBai)
{
ThongBao_Error("học phần môn " + monHoc_ThatBai + " đã hết chỗ , vui lòng chọn học phần khác");
session.AbortTransactionAsync();
ViewBag.listMonHoc = monHocModel.findAll();
ViewBag.accountInfo = accountModel.find_username(Session[currentAccount].ToString());
account.Status = false;
account.HocPhanDaDangKy = HocPhanDaDangKy_OLD;
accountModel.update(account);
return(View(HocPhanDaDangKy_OLD));
}
else
{
ThongBao_Success("Đăng ký học phần " + monHoc_Success + " thành công!");
session.CommitTransaction();
ViewBag.listMonHoc = monHocModel.findAll();
ViewBag.accountInfo = accountModel.find_username(Session[currentAccount].ToString());
return(View(DanhSachHocPhan));
}
}
catch (Exception e)
{
account.Status = false;
account.HocPhanDaDangKy = HocPhanDaDangKy_OLD;
accountModel.update(account);
ThongBao_Error("Error writing to MongoDB: " + e.Message);
session.AbortTransaction();
ViewBag.listMonHoc = monHocModel.findAll();
ViewBag.accountInfo = accountModel.find_username(Session[currentAccount].ToString());
return(View(HocPhanDaDangKy_OLD));
}
}
}
ViewBag.listMonHoc = monHocModel.findAll();
ViewBag.accountInfo = accountModel.find_username(Session[currentAccount].ToString());
return(View(DanhSachHocPhan));
}
public ActionResult Delete(string id)
{
if (id == null)
{
return(RedirectToAction("Index"));
}
else if (model.find(id) == null)
{
return(RedirectToAction("Index"));
}
model.delete(id);
return(RedirectToAction("Index"));
}
