帮别人砍价

addons/shopro/controller/activity/Kan.php

@@ -125,7 +125,22 @@ class Kan extends Common
 
     //帮好友砍价
     public function kan_kan(){
-        $kan_id          = $this->request->param('kan_id');
+        $kan_id = $this->request->param('kan_id');
+        $kan_id = intval($kan_id);
+
+        //
+        $user = auth_user();
+        $nowtime = time();
+
+        //一人只能砍一次
+        $map_check = [
+            'user_id' => $user['id'],
+            'kan_id'  => $kan_id,
+        ];
+        $check = Db::name('shopro_activity_kan_log')->where($map_check)->find();
+        if($check){
+            $this->error('您已经砍过一次了');
+        }
 
         Db::startTrans();
         //此次砍价
@@ -179,10 +194,6 @@ class Kan extends Common
             }
         }
 
-        //
-        $user = auth_user();
-        $nowtime = time();
-
         //日志
         $log_data = [
             'user_id' => $user['id'],