private void buttonAdd_Click(object sender, EventArgs e)
{
// First, we need to create the book, as the author list demands an id of the book
if (textBoxName.Text.Length > 0 && textBoxISBN.Text.Length > 0 && textBoxGenre.Text.Length > 0 &&
textBoxName.Text.Length < 63 && textBoxISBN.Text.Length < 15 && textBoxGenre.Text.Length < 31)
{
var bookToAdd = new Book();
bookToAdd.Name = textBoxName.Text;
bookToAdd.ISBN = textBoxISBN.Text;
bookToAdd.Genre = textBoxGenre.Text;
bookToAdd.DateOfAdd = DateTime.Now;
//Jak z tymi kopiami robimy
context.Books.InsertOnSubmit(bookToAdd);
context.SubmitChanges();
//As we have just created the book, we check the id of it
var bookId = from Book in context.Books
where (Book.Name == textBoxName.Text) && (Book.ISBN == textBoxISBN.Text) &&
(Book.Genre == textBoxGenre.Text)
select Book.Id;
int quantity = int.Parse(textBoxCopies.Text);
for (int i = 0; i < quantity; i++)
{
Copy copyToAdd = new Copy();
copyToAdd.BookId = bookId.FirstOrDefault();
copyToAdd.Status = "Dostępna";
context.Copies.InsertOnSubmit(copyToAdd);
context.SubmitChanges();
}
List <int> authors = new List <int>();
//checking if the Athor is already in DB
foreach (var element in listOfAuthors)
{
var author = from auth in context.Authors
where (auth.Firstname == element.Firstname) && (auth.Lastname == element.Lastname)
select auth.Id;
var authorFirst = author.FirstOrDefault();
if (authorFirst != 0)
{
var authorList = new AuthorList();
authorList.AuthorId = authorFirst;
authorList.BookId = bookId.FirstOrDefault();
context.AuthorLists.InsertOnSubmit(authorList);
context.SubmitChanges();
}
else
{
var id = (from auth in context.Authors
select auth.Id).Max();
var authorToAdd = new Author();
authorToAdd.Firstname = element.Firstname;
authorToAdd.Lastname = element.Lastname;
context.Authors.InsertOnSubmit(authorToAdd);
context.SubmitChanges();
var addedAuthor = (from authrs in context.Authors
where authrs.Lastname == element.Lastname
select authrs.Id).FirstOrDefault();
var authorList = new AuthorList()
{
AuthorId = addedAuthor,
BookId = bookId.FirstOrDefault()
};
context.AuthorLists.InsertOnSubmit(authorList);
context.SubmitChanges();
}
}
}
else
{
MessageBox.Show("Zły format danych", "Błąd!");
}
this.Close();
}
private void detach_AuthorLists(AuthorList entity)
{
this.SendPropertyChanging();
entity.Book = null;
}
private void attach_AuthorLists(AuthorList entity)
{
this.SendPropertyChanging();
entity.Book = this;
}
partial void DeleteAuthorList(AuthorList instance);
partial void UpdateAuthorList(AuthorList instance);
partial void InsertAuthorList(AuthorList instance);