thinkphp/library/think/db/builder/Sqlsrv.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace think\db\builder;

use think\db\Builder;
use think\db\Expression;
use think\db\Query;
use think\Exception;

/**
 * Sqlsrv数据库驱动
 */
class Sqlsrv extends Builder
{
    protected $selectSql       = 'SELECT T1.* FROM (SELECT thinkphp.*, ROW_NUMBER() OVER (%ORDER%) AS ROW_NUMBER FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%) AS thinkphp) AS T1 %LIMIT%%COMMENT%';
    protected $selectInsertSql = 'SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%';
    protected $updateSql       = 'UPDATE %TABLE% SET %SET% FROM %TABLE% %JOIN% %WHERE% %LIMIT% %LOCK%%COMMENT%';
    protected $deleteSql       = 'DELETE FROM %TABLE% %USING% FROM %TABLE% %JOIN% %WHERE% %LIMIT% %LOCK%%COMMENT%';
    protected $insertSql       = 'INSERT INTO %TABLE% (%FIELD%) VALUES (%DATA%) %COMMENT%';
    protected $insertAllSql    = 'INSERT INTO %TABLE% (%FIELD%) %DATA% %COMMENT%';

    /**
     * order分析
     * @access protected
     * @param  Query     $query        查询对象
     * @param  mixed     $order
     * @return string
     */
    protected function parseOrder(Query $query, $order)
    {
        if (empty($order)) {
            return ' ORDER BY rand()';
        }

        foreach ($order as $key => $val) {
            if ($val instanceof Expression) {
                $array[] = $val->getValue();
            } elseif ('[rand]' == $val) {
                $array[] = $this->parseRand($query);
            } else {
                if (is_numeric($key)) {
                    list($key, $sort) = explode(' ', strpos($val, ' ') ? $val : $val . ' ');
                } else {
                    $sort = $val;
                }

                if (preg_match('/^[\w\.]+$/', $key)) {
                    $sort    = strtoupper($sort);
                    $sort    = in_array($sort, ['ASC', 'DESC'], true) ? ' ' . $sort : '';
                    $array[] = $this->parseKey($query, $key, true) . $sort;
                } else {