抢礼物，优化

application/api/controller/Grabgift.php

@@ -118,6 +118,7 @@ class Grabgift extends Api
         //如果是最后一个，开奖
         $gift_name = '';
         $winer_nickname = '';
+        $new_seatnum = $seat_number;
 
         if($count == $seat_number){
 
@@ -183,6 +184,7 @@ class Grabgift extends Api
 
                 //redis标记状态,未开奖
                 $this->redis->set('kge_grabgift_'.$grabgift_data['id'],$grabgift_data['seat_num']);
+                $new_seatnum = $grabgift_data['seat_num'];
             }
         }
         Db::commit();
@@ -191,7 +193,7 @@ class Grabgift extends Api
             'grab_id'     => $grab_id,
             'count'       => $count,
             'is_finish'   => $count == $seat_number ? 1 : 0,
-            'seat_number' => $seat_number,
+            'seat_number' => $new_seatnum,
             'nickname'    => $this->auth->nickname,
             'user_id'     => $this->auth->id,
             'avatar'      => localpath_to_netpath($this->auth->avatar),