邀请码的设计（转）

youou

这个只是思路

1. <?php
   
2. class InvitationCodeService
   
3. {
   
4.     const CODE_LENGTH = 4;
   
5.     const WAIT_TIME = 10; //生成邀请码的间隔时间
   
6.     const TIME_OUT = 3600; //半个小时
   
7.     private $_obj = 1; //多个项目的情况下
   
8.     private $_num = 100;
   
9.     private $_status = array(0 => "未激活", 1 => "激活的", - 1 => "已过期");
   
10.     public function crateCode ($uid)
    
11.     {
    
12.         $lastCode = InvitationCodeModel::instance()->getCodeByUid($uid);
    
13.         if (time() - $lastCode['create_time'] < self::WAIT_TIME && ! empty(
    
14.         $lastCode)) {
    
15.             $msg = "生成间隔时间不能少于" . self::WAIT_TIME . "秒";
    
16.             return array('status' => false, 'message' => $msg);
    
17.         }
    
18.         $code = $this->getRandCode();
    
19.         $params = array('uid' => $uid, 'create_time' => time(),
    
20.         'obj' => $this->_obj, 'code' => $code);
    
21.         $rs = InvitationCodeModel::instance()->addCode($params);
    
22.         if ($rs > 0) {
    
23.             return array('status' => true, 'data' => $code, 'message' => "生成成功");
    
24.         } else {
    
25.             return array('status' => false, 'data' => $code,
    
26.             'message' => "生成失败");
    
27.         }
    
28.     }
    
29.     //激活码
    
30.     public function activate ($sendee, $code)
    
31.     {
    
32.          
    
33.         $code = InvitationCodeModel::instance()->getCodeByCode($code);
    
34.         if (empty($code)) {
    
35.             return array('status' => false, 'message' => "授权码错误!");
    
36.         }
    
37.         if ($code['status'] < 0) {
    
38.             $msg = $this->_status[$code['status']];
    
39.             return array('status' => false, 'message' => $msg);
    
40.         }
    
41.         if ($code['status'] == 1 && $code['sendee'] != $sendee) {
    
42.             return array('status' => false, 'message' => "此邀请码已被使用");
    
43.         }
    
44.         if ($code['status'] == 1 && $code['sendee'] == $sendee) {
    
45.             $istimeout = $this->isTimeout($code);
    
46.             if (! $istimeout['status']) {
    
47.                 return $istimeout;
    
48.             }
    
49.             return array('status' => true);
    
50.         }
    
51.         $v = array('sendee' => $sendee, 'status' => 1, 'active_time' => time());
    
52.         $rs = InvitationCodeModel::instance()->saveCodeById($v, $code['id']);
    
53.         if ($rs > 0) {
    
54.             return array('status' => true, 'data' => $code, 'message' => "激活成功");
    
55.         } else {
    
56.             return array('status' => false, 'data' => $code,
    
57.             'message' => "激活失败");
    
58.         }
    
59.     }
    
60.     private function isTimeout ($code)
    
61.     {
    
62.         if (time() - $code['active_time'] > self::TIME_OUT) {
    
63.             $v = array('status' => - 1);
    
64.             InvitationCodeModel::instance()->saveCodeById($v, $code['id']);
    
65.             return array('status' => false, 'message' => "授权码已失效，请重新获取授权!");
    
66.         }
    
67.         return array('status' => true);
    
68.     }
    
69.     //检查是否授权
    
70.     public function authrize ($sendee)
    
71.     {
    
72.         $code = InvitationCodeModel::instance()->getCodeBySendee($sendee);
    
73.         if (empty($code)) {
    
74.             return array('status' => false, 'message' => "未被授权进入");
    
75.         }
    
76.         if ($code['status'] == - 1) {
    
77.             return array('satatus' => false, 'message' => "授权码已失效，请重新获取授权!");
    
78.         }
    
79.         if (time() - $code['active_time'] > self::TIME_OUT) {
    
80.             $v = array('status' => - 1);
    
81.             InvitationCodeModel::instance()->saveCodeById($v, $code['id']);
    
82.             return array('status' => false, 'message' => "授权码已失效，请重新获取授权!");
    
83.         }
    
84.         $data = self::TIME_OUT - (time() - $code['active_time']);
    
85.         return array('status' => true, 'data' => $data);
    
86.     }
    
87.     //生成随机数
    
88.     private function getRandCode ()
    
89.     {
    
90.         $str = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXXYZ';
    
91.         $code = "";
    
92.         for ($i = 0; $i < self::CODE_LENGTH; $i ++) {
    
93.             $code .= $str{rand(0, 33)};
    
94.         }
    
95.         //检查是否重复
    
96.         $isexsit = InvitationCodeModel::instance()->getCodeByCode($code);
    
97.         if (! empty($isexsit)) {
    
98.             return $this->getRandCode();
    
99.         }
    
100.         return $code;
     
101.     }
     
102.     public function getCodePage ($p, $uid)
     
103.     {
     
104.         $where = array('uid' => $uid);
     
105.         $rs = InvitationCodeModel::instance()->getCodePage($p, $this->_num,
     
106.         $where);
     
107.         $member = new MemberService();
     
108.         foreach ($rs as $k => $v) {
     
109.             $user = $member->getMemberByUid($v['sendee']);
     
110.             $rs[$k]['sendee'] = $user['real_name'];
     
111.             $rs[$k]['status'] = $this->_status[$v['status']];
     
112.         }
     
113.         return $rs;
     
114.     }
     
115. }
     
116. class InvitationCodeModel extends Db
     
117. {
     
118.     private $_code = 'd_invitation_code';
     
119.     public function getCodePage ($start, $num, $where)
     
120.     {
     
121.         return $this->getPage($start, $num, $this->_code, null, $where,
     
122.         'id DESC');
     
123.     }
     
124.     public function addCode ($params)
     
125.     {
     
126.         return $this->add($this->_code, $params);
     
127.     }
     
128.     public function saveCodeById ($v, $id)
     
129.     {
     
130.         return $this->update($this->_code, $v, array('id' => $id));
     
131.     }
     
132.     public function getCodeByCode ($code)
     
133.     {
     
134.         return $this->getOne($this->_code, array('code' => $code));
     
135.     }
     
136.     public function getCodeByUid ($uid)
     
137.     {
     
138.         $sql = "SELECT * FROM $this->_code WHERE uid=$uid AND status=0 ORDER BY id DESC LIMIT 1";
     
139.         return $this->fetch($sql);
     
140.     }
     
141.     public function getCodeBySendee ($sendee)
     
142.     {
     
143.         $sql = "SELECT * FROM $this->_code WHERE sendee=$sendee AND status=1 ORDER BY id DESC LIMIT 1";
     
144.         return $this->fetch($sql);
     
145.     }
     
146.     /**
     
147.      *
     
148.      * @return InvitationCodeModel
     
149.      */
     
150.     public static function instance ()
     
151.     {
     
152.         return parent::_instance(__CLASS__);
     
153.     }
     
154. }

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