laravel created_at,updated_atのdateのみ取得する方法

サンプルコード

    public function toArray($id)
    {
        return [
            'id'=>$this -> id,
            'title'=>$this -> title,
            'body'=>$this -> body,
            'tag'=>$this -> tag,
            'seo_title'=>$this -> seo_title,
            'meta_description'=>$this -> meta_description,
            'featured_image'=>$this -> featured_image,
            'created_at' => $this->created_at,
            'updated_at' => $this->updated_at,
        ];
    }

}

上記なようなコントローラー作成してgetしてしみると

{
    "data": {
        "id": 2,
        "title": null,
        "body": null,
        "tag": null,
        "seo_title": null,
        "meta_description": null,
        "featured_image": "https://headlesscms-api.s3.ap-northeast-1.amazonaws.com/test/BBjbX0ocpy3oWVGl5z05zRNzS9FoALqhmkJo1xKv.png",
        "created_at": {
            "date": "2019-07-15 01:40:07.000000",
            "timezone_type": 3,
            "timezone": "UTC"
        },
        "updated_at": {
            "date": "2019-07-15 01:40:07.000000",
            "timezone_type": 3,
            "timezone": "UTC"
        }
    }
}

created_at,updated_atに"timezone_type","timezone"がついてしまいます。

dateのみにしたい時

Carbonを使う

CarbonとはPHPのDateTimeクラスをオーバーラップした日付操作ライブラリです。

<?php

namespace App\Http\Resources;

use \App\Post;
use Carbon\Carbon;
use Illuminate\Http\Resources\Json\Resource;

class ApiPostsCollection extends Resource
{
    /**
     * Transform the resource into an array.
     *
     * @param \Illuminate\Http\Request $request
     * @return array
     */
    public function toArray($id)
    {
        return [
            'id'=>$this -> id,
            'title'=>$this -> title,
            'body'=>$this -> body,
            'tag'=>$this -> tag,
            'seo_title'=>$this -> seo_title,
            'meta_description'=>$this -> meta_description,
            'featured_image'=>$this -> featured_image,
            'created_at' => (new Carbon($this->created_at))->toDateTimeString(),
            'updated_at' => (new Carbon($this->updated_at))->toDateTimeString(),
        ];
    }

}

use Carbon\Carbon;

'created_at' => (new Carbon($this->created_at))->toDateTimeString(),
'updated_at' => (new Carbon($this->updated_at))->toDateTimeString(),

上記のようにCarbon使用したdateのみ返せるようになります。

{
    "data": {
        "id": 2,
        "title": null,
        "body": null,
        "tag": null,
        "seo_title": null,
        "meta_description": null,
        "featured_image": "https://headlesscms-api.s3.ap-northeast-1.amazonaws.com/test/BBjbX0ocpy3oWVGl5z05zRNzS9FoALqhmkJo1xKv.png",
        "created_at": "2019-07-15 01:40:07",
        "updated_at": "2019-07-15 01:40:07"
    }
}