7.x 重大特性 - 自定义属性 Cast

链接

定义

<?php

use Illuminate\Contracts\Database\Eloquent\CastsAttributes;

class AddressCaster implements CastsAttributes
{
    public function get($model, $key, $value, $attributes)
    {
        return new Address(
            $attributes['address_line_one'], 
            $attributes['address_line_two']
        );
    }

    public function set($model, $key, $value, $attributes)
    {
        return [
            'address_line_one' => $value->lineOne, 
            'address_line_two' => $value->lineTwo
        ];
    }
}

使用

$user->address->lineOne = 'New Line 1';
$user->save();