public static bool DeleteBook(Book book)
{
try
{
int c = DBBookShop.DeleteBook(cs, book.ID);
return(c > 0);
}
catch (Exception)
{
throw;
}
}
public static int UpdateBook(Book book)
{
try
{
int c = DBBookShop.UpdateBook(cs, book.ID, book.Name, book.Author, book.Country, book.Year);
return(c);
}
catch (Exception)
{
throw;
}
}
public static bool InsertBook(Book book)
{
try
{
int c = DBBookShop.InsertBook(cs, book.Name, book.Author, book.Country, book.Year);
return(c > 0);
}
catch (Exception)
{
throw;
}
}
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();
}
// ORM = Muutetaan datatablen rivit olioiksi
Book book;
foreach (DataRow row in dt.Rows)
{
book = new Book((int)row[0]);
book.Name = row[1].ToString();
book.Author = row[2].ToString();
book.Country = row[3].ToString();
book.Year = (int)row[4];
books.Add(book);
}
// Palautus
return(books);
}
catch (Exception ex)
{
throw ex;
}
}
