更新代码

app/Models/UserInfo.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use App\User;
+
+class UserInfo extends Model
+{
+    const UPDATED_AT = null;
+
+    protected $primaryKey = 'user_id';
+
+    protected $dates = [
+        'subscribe_at',
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+}