ThinkPHP/Library/Think/Db/Driver/Sqlsrv.class.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace Think\Db\Driver;
use Think\Db\Driver;
use PDO;

/**
 * Sqlsrv数据库驱动
 */
class Sqlsrv extends Driver{
    protected $selectSql  =     'SELECT T1.* FROM (SELECT thinkphp.*, ROW_NUMBER() OVER (%ORDER%) AS ROW_NUMBER FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING% %UNION%) AS thinkphp) AS T1 %LIMIT%%COMMENT%';
    // PDO连接参数
    protected $options = array(
        PDO::ATTR_CASE              =>  PDO::CASE_LOWER,
        PDO::ATTR_ERRMODE           =>  PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_STRINGIFY_FETCHES =>  false,
        PDO::SQLSRV_ATTR_ENCODING   =>  PDO::SQLSRV_ENCODING_UTF8,
    );

    /**
     * 解析pdo连接的dsn信息
     * @access public
     * @param array $config 连接信息
     * @return string
     */
    protected function parseDsn($config){
        $dsn  =   'sqlsrv:Database='.$config['database'].';Server='.$config['hostname'];
        if(!empty($config['hostport'])) {
            $dsn  .= ','.$config['hostport'];
        }
        return $dsn;
    }

    /**
     * 取得数据表的字段信息
     * @access public
     * @return array
     */
    public function getFields($tableName) {
        list($tableName) = explode(' ', $tableName);
        $result =   $this->query("SELECT   column_name,   data_type,   column_default,   is_nullable
        FROM    information_schema.tables AS t
        JOIN    information_schema.columns AS c
        ON  t.table_catalog = c.table_catalog
        AND t.table_schema  = c.table_schema
        AND t.table_name    = c.table_name
        WHERE   t.table_name = '$tableName'");
        $info   =   array();
        if($result) {
            foreach ($result as $key => $val) {
                $info[$val['column_name']] = array(