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renjianbo
2026-01-07 11:40:41 +08:00
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343
ZeedFramework/library/Com/Coupon.php Normal file
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<?php
/**
*
* platform programe
* @category Trendible
* @package ChangeMe
* @subpackage ChangeMe
* @author shaun.song ( GTalk/Email: songsj125@gmail.com | MSN: ssj125@hotmail.com )
* @since 2010-6-29
* @version SVN: $Id$
*/
class Com_Coupon
{
/**
* 错误信息
* @var array
* 1001 已经抽取过一个，不可以重复抽取
* 1002 无库存
* 1003 code已经被领取过
* 1004 coupon取不到或coupon已被领取
* 1005 系统错误
*/
private static $_ERR = array(
1001 => 'you have get,can\'t get agin',
1002 => 'Not in stock',
1003 => 'operation fail',
1004 => 'coupon Invalid',
1005 => 'system error',
1006 => 'category error',
1007 => 'category not exists');
private static $res = array(
'status' => 0,
'error' => null,
'data' => null);
private static $_allowUniquefields = array(
'useid',
'ip');
private static $endnodecategory;
/**
* 根据category末接点获取coupon
* 返回数据示例
* Array
* (
* [status] => 0
* [error] =>
* [data] => Array
* (
* [code] => 228X8V75
* [categoryid] => 2
* [userid] => 2
* [cycle] => 0
* [ctime] => 2010-07-06 10:06:47
* [ip] => 127.0.0.1
* )
*
* )
*
* @param integer $categoryid 分类ID 这里的分类是指 末梢分类 ，即分配过coupon的分类
* @param integer $userid 用户ID
* @param integer $duplicate 是否可以重复抽取
* @param string $uniquefield uniq字段
* @param string $ip 访问者的IP
* @return array
*/
public static function getCoupon($categoryid = 0, $userid = 0, $duplicate = 1, $uniquefield = '', $ip = '')
{
if ($ip == '') {
$ip = Zeed_Util::clientIP();
}
if (! $duplicate && ! self::checkDuplicate($categoryid, $uniquefield, array(
'userid' => $userid,
'ip' => $ip))) {
return self::$res;
}
/**
* 对coupon_category进行行锁，更新categoryautoid=categoryautoid+1并取出categoryautoid
* 根据categoryautoid、categoryid取得coupon_categorylink的值
*/
if (! ($linkInfo = self::getCategoryLink($categoryid))) {
return self::$res;
}
Com_Model_Coupon::instance()->beginTransaction();
try {
if (! ($couponinfo = self::getCouponInfo($linkInfo['codeid']))) {
Com_Model_Coupon::instance()->rollBack();
return self::$res;
}
/**
* 检查code已经被领取过
*/
if (! self::checkHistory($couponinfo['code'])) {
Com_Model_Coupon::instance()->rollBack();
return self::$res;
}
$set = array(
'status' => 2,
'mtime' => date('Y-m-d H:i:s'));
Com_Model_Coupon::instance()->updateCouponById($couponinfo['id'], $set);
$history = array(
'code' => $couponinfo['code'],
'categoryid' => $categoryid,
'userid' => $userid,
'cycle' => $linkInfo['cycle'],
'ctime' => date('Y-m-d H:i:s'),
'ip' => $ip);
Com_Model_Coupon::instance()->addCouponHistory($history);
Com_Model_Coupon::instance()->commit();
self::$res['data'] = $history;
self::$res['data']['serialnumber'] = $couponinfo['serialnumber'];
return self::$res;
} catch (Exception $e) {
Com_Model_Coupon::instance()->rollBack();
self::$res['status'] = 1005;
self::$res['error'] = self::$_ERR[1005];
return self::$res;
}
}
/**
* 根据分类中的活动根节点，来获取coupon
*
*
* @param integer $categoryid
* @param integer $userid
* @return array
*/
public static function get($categoryid, $userid)
{
$category = Com_Model_Coupon::instance()->getCategoryById($categoryid);
/**
*验证分类是否存在
*/
if (! (! empty($category))) {
self::$res['status'] = 1006;
self::$res['error'] = self::$_ERR[1006];
return self::$res;
}
/**
* 验证活动是否有效
*/
$date = date('Y-m-d H:i:s');
if (! ($date >= $category['stime'] && $date <= $category['etime'])) {
self::$res['status'] = 1007;
self::$res['error'] = self::$_ERR[1007];
return self::$res;
}
/**
* 获取末梢分类
*/
self::getEndnodeCategory($categoryid);
if(empty(self::$endnodecategory))
{
self::$res['status'] = 1002;
self::$res['error'] = self::$_ERR[1002];
return self::$res;
}
/**
* 返回Coupon
*/
return self::getCoupon(self::$endnodecategory['categoryid'],$userid,self::$endnodecategory['duplicate'],self::$endnodecategory['uniquefield']);
}
/**
* 当不可重复领取，检查是否已经领取过
*
* @param integer $categoryid
* @param string $uniquefield(暂时仅支持ip,userid)
* @param array $uniquevalue
* @return boolen
*/
private static function checkDuplicate($categoryid, $uniquefield, $uniquevalue)
{
$uniquefield = $uniquefield != '' && in_array($uniquefield, self::$_allowUniquefields) ? $uniquefield : 'userid';
$where = array(
'categoryid' => $categoryid);
$where[$uniquefield] = $uniquevalue[$uniquefield];
$rows = Com_Model_Coupon::instance()->getCouponHistoryByWhere($where);
if (empty($rows)) {
return true;
} else {
self::$res['status'] = 1001;
self::$res['error'] = self::$_ERR[1001];
return false;
}
}
/**
* 检查code是否已被领取过
*
* @param string $code
* @return boolen
*/
private static function checkHistory($code)
{
$rows = Com_Model_Coupon::instance()->getCouponHistoryByWhere(array(
'code' => $code));
if (empty($rows)) {
return true;
} else {
self::$res['status'] = 1003;
self::$res['error'] = self::$_ERR[1003];
return false;
}
}
/**
* 获取coupon
*
* @param integer $id
* @return array|boolen
*/
private static function getCouponInfo($id)
{
$row = Com_Model_Coupon::instance()->getCouponInfo($id);
if (! empty($row) && $row['status'] == 0) {
return $row;
}
self::$res['status'] = 1004;
self::$res['error'] = self::$_ERR[1004];
return false;
}
/**
* 获取categoryautoid
*
* @param ineteger $categoryid
* @return boolen|integer
*/
private static function getCategoryAutoId($categoryid = 0)
{
$autoid = Com_Model_Coupon::instance()->getCategoryAutoId($categoryid);
if (! $autoid) {
return false;
}
return $autoid;
}
/**
* 获取categorylink
*
* @param integer $categoryautoid
* @return boolen|array
*/
private static function getCategoryLink($categoryid = 0)
{
$autoid = self::getCategoryAutoId($categoryid);
if ($autoid) {
$linkInfo = Com_Model_Coupon::instance()->getLinkByAutoId($autoid, $categoryid);
if (! empty($linkInfo)) {
return $linkInfo;
}
}
self::$res['status'] = 1002;
self::$res['error'] = self::$_ERR[1002];
return false;
}
/**
* 获取当前活动的末接点分类
*
* @param integer $categoryid
* @return void
*/
private static function getEndnodeCategory($categoryid)
{
$subcategories = Com_Model_Coupon::instance()->getCategoriesByWhere(" parentid = '$categoryid' AND amount > currentid");
if (! empty($subcategories)) {
$list = array();
$weight = array();
foreach ($subcategories as $item) {
$list[$item['categoryid']] = $item;
$weight[$item['categoryid']] = $item['weight'];
}
$roll = self::roll($weight);
$subcategory = $list[$roll];
if (! empty($subcategory)) {
if ($subcategory['endnode'] == 1) {
self::$endnodecategory = $subcategory;
} else {
self::getEndnodeCategory($subcategory['categoryid']);
}
}
}
}
/**
* 根据权重 roll
*
* @param array $weight
* @return integer
*/
private static function roll($weight = array())
{
$roll = rand(1, array_sum($weight));
$temp = 0;
$rollnum = 0;
foreach ($weight as $k => $v) {
$min = $temp;
$temp += $v;
$max = $temp;
if ($roll > $min && $roll <= $max) {
$rollnum = $k;
break;
}
}
return $rollnum;
}
}
// End ^ LF ^ UTF-8