private void btnNew_Click(object sender, RoutedEventArgs e) {
if (btnNew.Content.ToString() == "Uusi") {
Book newBook = new Book(0);
newBook.Name = "Anna kirjan nimi";
spBook.DataContext = newBook;
btnNew.Content = "Tallenna uusi kantaan";
} else {
Book current = (Book)spBook.DataContext;
Bookshop.InsertBook(current);
dgBooks.DataContext = Bookshop.GetBooks(true);
MessageBox.Show(string.Format("Kirja {0} tallennettu kantaan onnistuneesti", current.ToString()));
btnNew.Content = "Uusi";
}
}
public static List<Book> GetBooks(bool useDB) {
try {
DataTable dt;
List<Book> books = new List<Book>();
if (useDB) {
dt = DBBookShop.GetBooks(cs);
} else {
dt = DBBookShop.GetTestData();
}
Book book;
foreach (DataRow row in dt.Rows) {
book = new Book((int)row[0]);
book.Name = row["name"].ToString();
book.Author = row["author"].ToString();
book.Country = row["country"].ToString();
book.Year = (int)row["year"];
books.Add(book);
}
return books;
} catch (Exception ex) {
throw ex;
}
}
public static int UpdateBook(Book book) {
try {
int lkm = DBBookShop.UpdateBook(cs, book.ID, book.Name, book.Author, book.Country, book.Year);
return lkm;
} catch (Exception ex) {
throw ex;
}
}
public static bool DeleteBook(Book book) {
try {
int lkm = DBBookShop.DeleteBook(cs, book.ID);
if (lkm > 0) {
return true;
} else {
return false;
}
} catch (Exception ex) {
throw ex;
}
}
public static bool InsertBook(Book book) {
try {
int lkm = DBBookShop.InsertBook(cs, book.Name, book.Author, book.Country, book.Year);
if (lkm > 0) {
return true;
} else {
return false;
}
} catch (Exception ex) {
throw ex;
}
}
public static List<Book> GetBooks(bool useDB)
{
try
{
DataTable dt;
List<Book> books = new List<Book>();
if (useDB)
{
//pyydetään DB-kerrokselta kirjojen tiedot
dt = DBBookshop.GetBooks(cs);
}
else
{
dt = DBBookshop.GetTestData();
}
//ORM = muutetaan datatablen rivit olioiksi
Book book;
foreach (DataRow row in dt.Rows)
{
book = new Book((int)row[0]);
book.Name = row["name"].ToString();
book.Author = row["author"].ToString();
book.Country = row["country"].ToString();
book.Year = (int)row["year"];
books.Add(book);
}
//palautus
return books;
}
catch (Exception ex)
{
throw ex;
}
}
public static bool Deletebook(Book book)
{
try
{
int lkm = DBBookshop.DeleteBook(cs, book.ID);
if (lkm > 0)
return true;
else
return false;
}
catch (Exception)
{
throw;
}
}