\think\db\exceptionDbException

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://zjzit.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace think\db\exception;

use Exception;

/**
 * Database相关异常处理类
 */
class DbException extends Exception
{
    /**
     * DbException constructor.
     * @access public
     * @param  string    $message
     * @param  array     $config
     * @param  string    $sql
     * @param  int       $code
     */
    public function __construct(string $message, array $config = [], string $sql = '', int $code = 10500)
    {
        $this->message = $message;
        $this->code    = $code;

        $this->setData('Database Status', [
            'Error Code'    => $code,
            'Error Message' => $message,
            'Error SQL'     => $sql,
        ]);

        unset($config['username'], $config['password']);
        $this->setData('Database Config', $config);
    }

    /**
     * 保存异常页面显示的额外Debug数据
     * @var array
     */
    protected $data = [];

    /**
     * 设置异常额外的Debug数据
     * 数据将会显示为下面的格式
     *
     * Exception Data
     * --------------------------------------------------
     * Label 1
     *   key1      value1
     *   key2      value2
     * Label 2
     *   key1      value1
     *   key2      value2
     *
     * @param string $label 数据分类，用于异常页面显示
     * @param array  $data  需要显示的数据，必须为关联数组
     */
    final protected function setData($label, array $data)
    {
        $this->data[$label] = $data;
    }

    /**
     * 获取异常额外Debug数据
     * 主要用于输出到异常页面便于调试
     * @return array 由setData设置的Debug数据
     */
    final public function getData()
    {
        return $this->data;
    }
}