/**
* @param string $table
* @param mixed $fields
* @param mixed $id can be null
* @param ADODB $db
*/
public function __construct($table, $fields, $id, $db)
{
$this->table = $table;
$this->fields = $fields;
$this->id = $id;
$this->type = $this->getTransactionType();
$this->db_error = $db->ErrorMsg();
parent::__construct($this->makeMessage());
}
