saberma/19wu — pull request #537 by saberma (2013-08-23 03:29:29+00:00)
Title: 活动管理员签到 #536

截图如下：

#### 正常签到

![screen shot 2013-08-23 at 11 27 08](https://f.cloud.github.com/assets/15178/1014043/f37d2602-0ba3-11e3-845f-935bd0feab6e.png)

#### 异常情况

##### 错误签到码

![screen shot 2013-08-23 at 11 23 41](https://f.cloud.github.com/assets/15178/1014034/9af73ba8-0ba3-11e3-835a-d614e8360ff8.png)

#### 重复签到

![screen shot 2013-08-23 at 11 27 48](https://f.cloud.github.com/assets/15178/1014045/05c95b3c-0ba4-11e3-975f-2225bddad468.png)

#### 订单正在退款

![screen shot 2013-08-23 at 11 25 55](https://f.cloud.github.com/assets/15178/1014037/caeeb746-0ba3-11e3-9707-c6940e7840b9.png)

#536