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;
}
}
private void btnCreateNew_Click(object sender, RoutedEventArgs e) {
if (btnCreateNew.Content.ToString() == "Uusi") {
//luodaan uusi kirja-olio
Book newBook = new Book(0);
newBook.Name = "Anna kirjan nimi";
spInfo.DataContext = newBook;
btnCreateNew.Content = "Tallenna uusi kantaan";
} else {
//tallennetaan
Book current = (Book)spInfo.DataContext;
Bookshop.InsertBook(current);
dgBooks.DataContext = Bookshop.GetBooks(true);
MessageBox.Show(string.Format("Kirja {0} tallennettu kantaan onnistuneesti", current.ToString()));
}
}
private void btnNew_Click(object sender, RoutedEventArgs e)
{
if (btnNew.Content.ToString() == "New")
{
// Luodaan uusi olio
Book newBook = new Book(0);
newBook.Name = "Anna kirjan nimi";
spContent.DataContext = newBook;
btnNew.Content = "Insert to database";
}
else
{
// Tallennetaan
Book current = (Book)spContent.DataContext;
Bookshop.InsertBook(current);
dgBooks.DataContext = Bookshop.GetBooks(true);
MessageBox.Show(string.Format("Book {0} inserted to database successfully", current.ToString()));
}
}
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);
}
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 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 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;
}
}