/// <summary>
/// SearchISBN - calls ISBN.SearchTitleByIsbn to get the Title of the given ISBN code.
/// </summary>
/// <param name="isbn"></param>
/// <returns>title-typeof(string)</returns>
public ActionResult SearchISBN(string isbn)
{
string title = "";
if (isbn is null)
{
return(Json(title, JsonRequestBehavior.AllowGet));
}
title = ISBN.SearchTitleByIsbn(isbn);
return(Json(title, JsonRequestBehavior.AllowGet));
}
public ActionResult Create([Bind(Include = "Id,ISBN,Title,Mark")] Book book)
{
if (ModelState.IsValid)
{
book.ISBN = book.ISBN.Trim();
var userIdQuery = db.Users.Where(u => u.Email == User.Identity.Name).Select(u => u.Id);
var userId = userIdQuery.FirstOrDefault();
//Check if ISBN is already exist in book list
if (db.Books.Where(b => b.ISBN == book.ISBN && b.UserId == userId).Count() > 0)
{
// TempData["error"] = "Book with ISBN + " + book.ISBN + " already exists in your list.";
ModelState.AddModelError("", "Book with ISBN : " + book.ISBN + " already exists in your list.");
return(View(book));
// return RedirectToAction("form_Post", "Form");
}
//Search for the title by ISBN through ISBNdb.com
//This is just an alternative, for Search Button in CreateView
string title = ISBN.SearchTitleByIsbn(book.ISBN);
if (title != null)
{
book.Title = title;
}
book.UserId = userId;
book.AddedDate = DateTime.Now;
db.Books.Add(book);
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(book));
}
