mirror of
https://gitee.com/ShopeX/OMS
synced 2026-03-23 02:45:33 +08:00
107 lines
2.5 KiB
PHP
107 lines
2.5 KiB
PHP
<?php
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/**
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* Copyright © ShopeX （http://www.shopex.cn）. All rights reserved.
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* See LICENSE file for license details.
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*/
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/**
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* 使用数据库来生成自增GUID
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*/
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class ome_concurrent_guid {
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/**
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* 单例对像
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*/
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static public $_instance = null;
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/**
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* 获取单例对像
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*
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* @param void
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* @return ome_concurrent_guid
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*/
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static public function instance() {
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if (!is_object(self::$_instance)) {
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self::$_instance = new ome_concurrent_guid();
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}
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return self::$_instance;
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}
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/**
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* 获取自增ID
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*
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* @param $type
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* @param $prefix
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* @param $length
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* @param $fix
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* @return Integer
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*/
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public function increment($type, $prefix ,$length, $fixed) {
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if ($fixed) {
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$fix = $prefix . $this->getUUIDFix();
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$sql = "SELECT id,`current_time` FROM sdb_ome_concurrent WHERE `current_time`<=".time()." and type='$type' and id like '{$fix}%' order by id desc limit 0,1";
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} else {
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$sql = "SELECT id,`current_time` FROM sdb_ome_concurrent WHERE `current_time`<=".time()." and type='$type' and id like '{$prefix}%' order by id desc limit 0,1";
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}
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$ret = kernel::database()->select($sql);
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//默认值设定
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$num = 1;
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if (is_array($ret)) {
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$ret = $ret[0];
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//检查是否当天的ID
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if (date('y-m-d', $ret['current_time']) == date('y-m-d', time())) {
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//是今天的
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$num = substr($ret['id'], 0 - $length);
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$num = intval($num)+1;
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}
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}
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return $num;
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}
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/**
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* 保存并校验指定类型的GUID是否可用
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*
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* @return Boolean
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*/
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public function _vaildGUID($type, $guid)
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{
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try {
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$res = kernel::database()->exec('INSERT INTO sdb_ome_concurrent(`id`,`type`,`current_time`)VALUES("'.$guid.'","'.$type.'","'.time().'")');
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return $res ? true : false;
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} catch (Exception $e) {
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return false;
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}
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}
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/**
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* 判断编号是否存在
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*
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* @return void
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* @author
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**/
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public function _existGUID($type, $guid)
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{
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$row = kernel::database()->selectrow('SELECT `id` FROM sdb_ome_concurrent WHERE `id`="'.$guid.'" AND `type`="'.$type.'"');
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return $row;
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}
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/**
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* 返回本插件的UID识别字段值
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*
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* @return String
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*/
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public function getUUIDFix() {
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return '0';
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}
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} |