public BookDataAccess.Books Post(BookDataAccess.Books book)
{
try
{
using (BookDBEntities entities = new BookDBEntities())
{
var result = entities.Books.Add(book);
entities.SaveChanges();
return(result);
}
}
catch (Exception ex)
{
throw new Exception("Error cannot add this book", ex);
}
}
public BookDataAccess.Books Put(int id, BookDataAccess.Books book)
{
try
{
using (BookDBEntities entities = new BookDBEntities())
{
var entity = entities.Books.FirstOrDefault(e => e.Id == id);
if (entity == null)
{
throw new Exception("Error cannot update book");
}
entities.Entry(entity).CurrentValues.SetValues(book);
entities.SaveChanges();
return(entities.Entry(entity).Entity);
}
}
catch (Exception ex)
{
throw new Exception("Cannot update book", ex);
}
}
