private void addButton_Click(object sender, RoutedEventArgs e)
{
try
{
//Searches for a book by ISBN, if one is found then additional copies will be added to it.
//If no book is found then a new book will be created.
if (iSBNTextBox.Text == "")
{
throw new Exception("Please enter an ISBN");
}
BookSearch search = new BookSearch(books, people, iSBNTextBox.Text.Trim());
search.ISBNSearch();
if (search.FoundBooks.Count == 0)
{
//A new book is being added to the database
//Create the bookBuilder that will make the bookBLL
BookBuilder builder = new BookBuilder(books, people, iSBNTextBox.Text.Trim());
//Request author information
RequestAuthorWindow dialog1 = new RequestAuthorWindow(builder);
if (dialog1.ShowDialog() == true)
{
//Check if a new author is being created, is so ask for bio
if (builder.AuthorBuilder != null)
{
RequestAuthorBio dialog2 = new RequestAuthorBio(builder);
dialog2.ShowDialog();
}
Reset();
this.NavigationService.Navigate(new NewBookKnownAuthor(builder));
}
}
else
{
BookUpdater updater = new BookUpdater(books, people, logs, search.FoundBooks[0]);
Reset();
this.NavigationService.Navigate(new AddSubtractCopiesPage(updater));
}
}
catch (Exception ex)
{
errorLabel.Content = ErrorHandler.InnermostExceptionMessage(ex);
}
}
private void saveButton_Click(object sender, RoutedEventArgs e)
{
try
{
//Gather and trim the inputs
string firstName = firstNameTextBox.Text.Trim();
string lastName = lastNameTextBox.Text.Trim();
string iSBN = iSBNTextBox.Text.Trim();
string title = titleTextBox.Text.Trim();
int numberOfCopies;
if (!int.TryParse(copiesTextBox.Text, out numberOfCopies) || numberOfCopies < 0)
{
throw new Exception("Failed to parse the number of copies. Must enter a number, 0 or more.");
}
//Since numPages is a nullable int some more logic is required for formating, and parsing.
int?numPages = null;
if (numPagestextBox.Text != "")
{
if (!int.TryParse(numPagestextBox.Text, out int numPagesint))
{
throw new Exception("If entering a page count please enter a valid number.");
}
else
{
//A valid number was entered, set the pages.
if (numPagesint < 1)
{
throw new Exception("Pages should be 1 or more.");
}
numPages = numPagesint;
}
}
string subject = subjectTextBox.Text.Trim();
string description = descriptionTextBox.Text.Trim();
string publisher = publisherTextBox.Text.Trim();
if (publisher.Count() > 50)
{
throw new Exception("Publisher name cannot be greater than 50 characters.");
}
string yearPublished = yearTextBox.Text.Trim();
if (yearPublished != "")
{
if (yearPublished.Count() != 4)
{
throw new Exception("If entering a year it must be 4 characters");
}
}
string language = languageTextBox.Text.Trim();
//Check the required fields to make sure there is something in them all
if (firstName == "" || lastName == "" || title == "" || iSBN == "")
{
throw new Exception("Required fields cannot be left blank.");
}
if (titleTextBox.Text.Trim().Count() > 50)
{
throw new Exception("Title is too long, 50 char maximum.");
}
if (iSBN.Count() > 50)
{
throw new Exception("ISBN is too long, 50 character maximum");
}
//*******************
//ISBN, Author, and Copies logic is not complete yet
//*******************
//The values can now be sent to the BookUpdater, it will handle the logic
//Required Fields
updater.UpdateISBN(iSBN);
updater.UpdateTitle(title);
updater.UpdateNumberOfCopies(numberOfCopies);
updater.UpdateAuthorID(firstName, lastName);//this might need to be turned off for testing
//If a new author object is being created a bio needs to be requested
if (updater.AuthorBuilder != null)
{
RequestAuthorBio dialog = new RequestAuthorBio(updater);
dialog.ShowDialog();
}
//Optional Fields
updater.UpdateNumPages(numPages);
updater.UpdateSubject(subject);
updater.UpdateDescription(description);
updater.UpdatePublisher(publisher);
updater.UpdateYearPub(yearPublished);
updater.UpdateLanguage(language);
//Update the book record in the database
books.UpdateBookFields(updater);
this.NavigationService.GoBack();
}
catch (Exception ex)
{
errorLabel.Content = ErrorHandler.InnermostExceptionMessage(ex);
updater.Reset();
}
}
