public function delete(Book $book)
{
return parent::_delete($this->_pkey, $book->BookId);
}
/**
* Deletes a user
* @param <type> $value
* @param <type> $field
* @return <type>
*/
public function delete($value, $field = 'UserId')
{
return parent::_delete($field, $value);
}
