<?php

namespace TwoFAS\TwoFAS\Exceptions;

use Exception;
use RuntimeException;
use wpdb;

class DB_Exception extends RuntimeException {

	/**
	 * @var string
	 */
	private $last_error;

	/**
	 * @param wpdb           $db
	 * @param int            $code
	 * @param Exception|null $previous
	 */
	public function __construct( wpdb $db, $code = 0, Exception $previous = null ) {
		$this->last_error = $db->last_error;

		parent::__construct( 'Database error: ' . $this->last_error, $code, $previous );
	}

	/**
	 * @return string
	 */
	public function get_last_error() {
		return $this->last_error;
	}
}