/// <summary>
/// New
/// </summary>
/// <param name="id">Book Id</param>
/// <returns></returns>
public ActionResult New(int id)
{
var q = bookService.Find(b => b.Id == id);
BorrowInfo borrow = new BorrowInfo();
ViewBag.BookTitle = q.Title;
borrow.BookId = q.Id;
borrow.UserName = LoginUser.UserName;
return View(borrow);
}
public bool Add(BorrowInfo model)
{
bool result = false;
TransactionOptions transactionOption = new TransactionOptions();
//isolation level
transactionOption.IsolationLevel = IsolationLevel.ReadCommitted;
// over time
transactionOption.Timeout = new TimeSpan(0, 0, 60);
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, transactionOption))
{
try
{
//minus 1 stock qty,if qty=0,the book can't be borrowed
var currentBook = bookDal.Find(b => b.Id == model.BookId);
if (currentBook == null || currentBook.StockQty == 0)
return false;
currentBook.StockQty = currentBook.StockQty - 1;
bookDal.Update(currentBook);
//add one borrow info record
model.MDate = DateTime.Now;
model.IsActive = true;
model.MUser = 1;
borrowDal.Add(model);
scope.Complete();
result = true;
}
catch(Exception ex)
{
throw ex;
}
finally
{
scope.Dispose();
}
}
return result;
}
public ActionResult New(BorrowInfo borrow)
{
if (ModelState.IsValid)
{
try
{
borrowService.Add(borrow);
}
catch(Exception ex)
{
ModelState.AddModelError("error", ex.Message);
}
}
//return RedirectToAction("List", "Book");
return View();
}