public void Add(BookType bookType)
{
using (LibraryContext libraryContext = new LibraryContext())
{
libraryContext.BookType.Add(bookType);
libraryContext.SaveChanges();
}
}
public void Delete(BookType bookType)
{
using (LibraryContext libraryContext = new LibraryContext())
{
var entity = libraryContext.Entry(bookType);
entity.State = EntityState.Deleted;
libraryContext.SaveChanges();
}
}
public bool UpdateBookBookType(Book book, BookType bookType, out string message)
{
try
{
using (LiteDatabase db = new LiteDatabase(@"library.db"))
{
var books = db.GetCollection <Book>("Books");
book.BookType = bookType;
books.Update(book);
}
message = string.Format("Жанр книги {0} изменен на {1}", book.Id, bookType);
return(true);
}
catch (Exception ex)
{
message = ex.Message;
return(false);
}
}