/// <summary>
/// Get the copy with given barcode.
/// </summary>
/// <param name="barcode">The barcode of the copy.</param>
/// <returns>Returns a CopyViewModel.</returns>
/// <exception cref="Services.Exceptions.DoesNotExistException">
/// Thrown when no copy with given barcode could be found.</exception>
/// <exception cref="Services.Exceptions.DataAccessException">
/// Thrown when an error occurs in the data access layer.</exception>
public static CopyViewModel GetCopyViewModel(string barcode)
{
var cvm = new CopyViewModel();
var copy = new Copy();
if (Copy.GetCopy(out copy, barcode))
{
if (copy == null)
throw new DoesNotExistException("Ett exemplar med angiven streckkod finns inte i databasen.");
cvm = Mapper.Map<CopyViewModel>(copy);
}
else
throw new DataAccessException("Oväntat fel när ett exemplar skulle hämtas.");
return cvm;
}
/// <summary>
/// Update or insert a copy in the database.
/// </summary>
/// <param name="copyViewModel">The copy to upsert.</param>
/// <param name="overwriteExisting">If a copy with given barcode already exists: only overwrite it if
/// overwriteExisting is set to true.</param>
/// <exception cref="Services.Exceptions.AlreadyExistsException">
/// Thrown when overwriteExisting is set to false and there's already a copy with given barcode in
/// the database.</exception>
/// <exception cref="Services.Exceptions.DataAccessException">
/// Thrown when an error occurs in the data access layer.</exception>
public static void Upsert(CopyViewModel copyViewModel, bool overwriteExisting)
{
Copy tmp;
if (!overwriteExisting)
{
if (!Copy.GetCopy(out tmp, copyViewModel.BarCode))
throw new DataAccessException("Oväntat fel när en kopia skulle hämtas.");
if (tmp != null)
throw new AlreadyExistsException("Har man sett! Ett exemplar med denna streckkod finns redan.");
}
Copy copy = Mapper.Map<Copy>(copyViewModel);
if (!Copy.Upsert(copy))
{
throw new DataAccessException("Oväntat fel när ett exemplar skulle skapas eller uppdateras.");
}
}
public ActionResult Copy(string isbn, string barcode)
{
var errors = new List<string>();
// We must have an ISBN number.
if (isbn == null)
{
TempData["error"] = "Kan endast skapa exemplar av existerande böcker.";
return RedirectToAction("AdminPage", "Account");
}
// Is this ISBN valid?
try
{
BookServices.GetBookDetails(isbn);
}
catch (DoesNotExistException e)
{
TempData["error"] = e.Message;
return RedirectToAction("AdminPage", "Account");
}
catch (DataAccessException e)
{
TempData["error"] = e.Message;
return RedirectToAction("AdminPage", "Account");
}
CopyViewModel cvm = new CopyViewModel();
// If a barcode was given; is it valid?
if (barcode != null)
{
try
{
cvm = CopyServices.GetCopyViewModel(barcode);
cvm.Update = true;
}
catch (DoesNotExistException e) { errors.Add(e.Message); }
catch (DataAccessException e) { errors.Add(e.Message); }
}
cvm.ISBN = isbn;
string err = setCopyViewLists(cvm);
if (err != null)
errors.Add(err);
if (errors.Count > 0)
ViewBag.error = errors;
return View(cvm);
}
/// <summary>
/// Populate Statuses and Title in a CopyViewModel.
/// </summary>
/// <param name="cvm">The CopyViewModel.</param>
/// <returns>Returns an error message or null, if no error occured.</returns>
private string setCopyViewLists(CopyViewModel cvm)
{
try
{
var statusDic = StatusServices.GetStatusesAsDictionary();
cvm.Title = BookServices.GetBookDetails(cvm.ISBN).Title;
cvm.Statuses = new SelectList(statusDic.OrderBy(x => x.Value), "Key", "Value");
}
catch (DataAccessException e)
{
if (cvm.Title == null)
cvm.Title = "";
if (cvm.Statuses == null)
cvm.Statuses = new SelectList(new List<SelectListItem>());
return e.Message;
}
return null;
}
public ActionResult Copy(CopyViewModel copyInfo)
{
if (!ModelState.IsValid)
{
string err = setCopyViewLists(copyInfo);
if (err != null)
ViewBag.error = err;
return View(copyInfo);
}
try
{
CopyServices.Upsert(copyInfo, copyInfo.Update);
return RedirectToAction("Book", new { copyInfo.ISBN });
}
catch (Exception e)
{
var errors = new List<string>();
errors.Add(e.Message);
string err = setCopyViewLists(copyInfo);
if (err != null)
errors.Add("err");
ViewBag.error = errors;
return View(copyInfo);
}
}
