include/enums.func.php

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<?php   if(!defined('DEDEINC')) exit("Request Error!");
/**
 * 联动菜单类
 *
 * @version        $Id: enums.func.php 2 13:19 2011-3-24 tianya $
 * @package        DedeCMS.Libraries
 * @copyright      Copyright (c) 2007 - 2010, DesDev, Inc.
 * @license        http://help.dedecms.com/usersguide/license.html
 * @link           http://www.dedecms.com
 */

// 弱不存在缓存文件则写入缓存
if(!file_exists(DEDEDATA.'/enums/system.php')) WriteEnumsCache();

/**
 *  更新枚举缓存
 *
 * @access    public
 * @param     string  $egroup  联动组
 * @return    string
 */
function WriteEnumsCache($egroup='')
{
    global $dsql;
    $egroups = array();
    if($egroup=='') {
        $dsql->SetQuery("SELECT egroup FROM `#@__sys_enum` GROUP BY egroup ");
    }
    else {
        $dsql->SetQuery("SELECT egroup FROM `#@__sys_enum` WHERE egroup='$egroup' GROUP BY egroup ");
    }
    $dsql->Execute('enum');
    while($nrow = $dsql->GetArray('enum')) {
        $egroups[] = $nrow['egroup'];
    }
    foreach($egroups as $egroup)
    {
        $cachefile = DEDEDATA.'/enums/'.$egroup.'.php';
        $fp = fopen($cachefile,'w');
        fwrite($fp,'<'."?php\r\nglobal \$em_{$egroup}s;\r\n\$em_{$egroup}s = array();\r\n");
        $dsql->SetQuery("SELECT ename,evalue,issign FROM `#@__sys_enum` WHERE egroup='$egroup' ORDER BY disorder ASC, evalue ASC ");
        $dsql->Execute('enum');
        $issign = -1;
        $tenum = false; //三级联动标识
        while($nrow = $dsql->GetArray('enum'))
        {
            fwrite($fp,"\$em_{$egroup}s['{$nrow['evalue']}'] = '{$nrow['ename']}';\r\n");
            if($issign==-1) $issign = $nrow['issign'];
            if($nrow['issign']==2) $tenum = true;
        }
        if ($tenum) $dsql->ExecuteNoneQuery("UPDATE `#@__stepselect` SET `issign`=2 WHERE egroup='$egroup'; ");
        fwrite($fp,'?'.'>');
        fclose($fp);
        if(empty($issign)) WriteEnumsJs($egroup);
    }
    return '成功更新所有枚举缓存！';
}

/**
 *  获取联动表单两级数据的父类与子类