public void AddBookLoan(studentbookloan newBookLoan)
{
using (var dbModel = new LMSDataModelEntities())
{
dbModel.studentbookloans.AddObject(newBookLoan);
dbModel.ObjectStateManager.ChangeObjectState(newBookLoan, System.Data.EntityState.Added);
var saveCount = dbModel.SaveChanges();
if (saveCount < 1)
{
throw new Exception("Fail to insert new book loan " + newBookLoan.book.Title + " into DB");
}
}
}
public ActionResult ReturnProcessor(studentbookloan loanDetails)
{
loanDetails = DBManager.Instance.GetStudentBookLoanByID(loanDetails.id);
var returnedBook = loanDetails.book;
var regId = loanDetails.student.RegistrationID;
returnedBook.Available = true;
loanDetails.ReturnDate = DateTime.Now;
try
{
DBManager.Instance.UpdateBook(returnedBook);
DBManager.Instance.UpdateStudentBookLoan(loanDetails);
}
catch(Exception ex)
{
return View(new ReturnBookModel { ReturnSuccess = false, StudentReg = regId });
}
return View(new ReturnBookModel { ReturnSuccess = true, StudentReg = regId });
}
public ActionResult Index(LoanBookModel loanBookModel)
{
if (loanBookModel.IsInitial)
{
ModelState.Clear();
ViewData["InitialCall"] = 1 ;
return View(new LoanBookModel {BookId = loanBookModel.BookId, BookIsbn = loanBookModel.BookIsbn,BookTitle = loanBookModel.BookTitle, IsInitial = false});
}
ViewData["InitialCall"] = 0;
var loanbook = DBManager.Instance.GetAvailableBookByID(loanBookModel.BookId);
var loanee = DBManager.Instance.GetStudentByRegNo(loanBookModel.StudentReg);
//TODO: Check Max Books Held;
if (loanee == null)
{
ViewData["LoanSuccess"] = 0;
return View(loanBookModel);
}
var bookLoanData = new studentbookloan
{
BookId = loanBookModel.BookId,
DueDate = DateTime.Now.AddDays(7),
// Make Configurable parameter
ReturnDate = DateTime.MinValue,
IssuerID = 1,
StudentID = loanee.Id,
IssueDate = DateTime.Now
};
//Add Book Loan Data
DBManager.Instance.AddStudentBookLoan(bookLoanData);
loanbook.Available = false;
//Update Book
DBManager.Instance.UpdateBook(loanbook);
ViewData["LoanSuccess"] = 1;
return View(loanBookModel);
}
public void UpdateStudentBookLoan(studentbookloan loanToUpdate)
{
using (var dbModel = new LMSDataModelEntities())
{
//dbModel.Refresh(RefreshMode.ClientWins, dbModel.studentbookloans);
loanToUpdate.book = null;
loanToUpdate.student = null;
loanToUpdate.systemuser = null;
dbModel.studentbookloans.AddObject(loanToUpdate);
dbModel.ObjectStateManager.ChangeObjectState(loanToUpdate, System.Data.EntityState.Modified);
var saveCount = dbModel.SaveChanges();
if (saveCount < 1)
{
throw new Exception("Fail to Update Loan in DB");
}
}
}
