public string UpdateUser(User user)
{
bool updated = repository.Update(user);
if (updated)
return "User with id = " + user.id + " updated successfully";
return "Unable to update user with id = " + user.id;
}
public User Add(User item)
{
if (item == null)
throw new ArgumentNullException("item");
item.id = counter++;
books.Add(item);
return item;
}
public bool Update(User item)
{
if (item == null)
throw new ArgumentNullException("item");
int idx = books.FindIndex(b => b.id == item.id);
if (idx == -1)
return false;
books.RemoveAt(idx);
books.Add(item);
return true;
}
public string AddUser(User user)
{
User newUser = repository.Add(user);
return "id=" + newUser.id;
}