注册后补充填写邀请人，也要发放注册奖励

application/api/controller/User.php

@@ -375,13 +375,30 @@ class User extends Api
         if(isset($data['tag_ids'])){
             $data['tag_ids'] = implode(',',explode(',',$data['tag_ids']));
         }
-        if(isset($data['introcode'])){
+
+        if(isset($data['introcode']) && !empty($data['introcode'])){
             $intro_user = Db::name('user')->where('introcode',$data['introcode'])->value('id');
             if(!$intro_user){
                 $this->error('不存在的邀请人');
             }
+            if(!empty($this->auth->intro_uid)){
+                $this->error('您已经填写过邀请人');
+            }
             unset($data['introcode']);//别人的邀请码，不能改了自己的
             $data['intro_uid'] = $intro_user;
+
+            //邀请用户注册，给邀请人奖励
+            if(isset($data['intro_uid']) && !empty($data['intro_uid'])){
+                $intro_gold = config('site.intro_newuser_gift_goldnum') ?: 0;
+                if($intro_gold > 0){
+                    $wallet_rs = model('wallet')->lockChangeAccountRemain($data['intro_uid'],'gold',$intro_gold,63,'邀请'.$this->auth->username);
+                    if($wallet_rs['status'] === false){
+                        Db::rollback();
+                        $this->setError($wallet_rs['msg']);
+                        return false;
+                    }
+                }
+            }
         }
         //dump($data);
         if(empty($data)){