user/lib/Wechat.php

<?php
namespace User\Lib;

use Dever;

class Wechat
{
	public function getInfo($uid, $system_source = 5, $project_id = 1)
	{
		return Dever::db('user/wechat')->one(array('uid' => $uid, 'project_id' => $project_id, 'system_source' => $system_source));
	}

	public function update($uid, $openid, $system_source = 5, $project_id = 1)
	{
		$info = $this->getInfo($uid, $system_source, $project_id);
		$data['uid'] = $uid;
		$data['openid'] = $openid;
		$data['system_source'] = $system_source;
		$data['project_id'] = $project_id;
		if ($info) {
			$data['where_id'] = $info['id'];
			return Dever::db('user/wechat')->update($data);
		} else {
			return Dever::db('user/wechat')->insert($data);
		}
	}
}