在嘉宾麦上 然后上主持麦

application/api/model/RoomSong.php

@@ -530,6 +530,11 @@ class RoomSong extends Model
                 if(!$host && $owner != $user_id){
                     return ['code' => 0, 'msg' => '您没有权限上麦', 'data' => null];
                 }
+                //检查是否在坑位上
+                $pit_infos = db::name('vs_room_pit')->where(['room_id' => $room_id, 'user_id' => $user_id])->field('id,pit_number')->find();
+                if($pit_infos){
+                    return ['code' => 0, 'msg' => '您已上麦', 'data' => null];
+                }
             }
 
             $ompit = model('RoomPit')->OnPit($user_id,$room_id,$pit_number);//用户上了这个房间的几号麦位