first push

app/Models/Model.php

@@ -0,0 +1,22 @@
+<?php
+namespace App\Models;
+
+use DateTimeInterface;
+use Illuminate\Database\Eloquent\Model as Eloquent;
+
+class Model extends Eloquent
+{
+    protected $guarded = [];
+
+    /**
+     * 为数组 / JSON 序列化准备日期。
+     *
+     * @param  \DateTimeInterface  $date
+     * @return string
+     */
+    protected function serializeDate(DateTimeInterface $date)
+    {
+        return $date->format($this->dateFormat ?: 'Y-m-d H:i:s');
+    }
+
+}