签约身价变为负数修改

application/api/model/MarketValue.php

@@ -15,6 +15,7 @@ class MarketValue extends Model
      *  * @return array
      */
     public function change($user_id,$change_value,$type){
+        $change_value = abs($change_value);
         $before = db::name('user')->where('id',$user_id)->value('market_value');
         if($type == 0 || $type == 3){
             $result = db::name('user')->where('id',$user_id)->setInc('market_value',$change_value);

application/api/model/Sign.php

@@ -186,7 +186,7 @@ class Sign extends Model
         }
         //获取签约出价最高的
         $max_sign_user = db::name('vs_user_sign_auction')->where(['room_id' => $room_id,'sign_time' => $sign_time,'type' => 0])->order('sign_value desc,id asc')->find();
-        if($max_sign_user){
+        if($max_sign_user && $max_sign_user['sign_value'] > $sign['market_value']){
             $before_sign_user = null;
             $is_sign = null;
             //查询签约用户的身份 是否是第一次被签 是否当前有签