更新代码

app/Models/Advert.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Models;
+
+use RuLong\Panel\Models\Storage;
+
+class Advert extends Model
+{
+
+    public function storage()
+    {
+        return $this->belongsTo(Storage::class)->withDefault();
+    }
+
+    public function seller()
+    {
+        return $this->belongsTo(Seller::class)->withDefault();
+    }
+}