redcrystalcode / laravel-value-objects by redcrystalcode

Laravel Value Objects

Cast your Eloquent model attributes to value objects with ease!

Requirements

This package requires PHP >= 5.4. Using the latest version of PHP is highly recommended. Laravel 4.x and 5.x are supported.

Note: Running tests for this package requires PHP >=5.6.

Install

Require this package with composer using the following command:

composer require redcrystal/cast

Set Up

This package lets you easily cast your model attributes to Value Objects that implement our RedCrystal\Cast\ValueObject interface. A simple example is provided below.

<?php
namespace App\ValueObjects;

use RedCrystal\Cast\ValueObject;

class Email implements ValueObject
{
    protected $value;

    public function __construct($value)
    {
        $this->value = $value;
    }

    public function toScalar()
    {
        return $this->value;
    }

    public function __toString() {
        return $this->toScalar();
    }
}

Set up your model by using the included Trait and adding a tiny bit of configuration.

<?php

namespace App;

use App\ValueObjects\Email;
use Illuminate\Database\Eloquent\Model;
use RedCrystal\Cast\CastsValueObjects;

class User extends extends Model {
	use CastsValueObjects;

	
	protected $objects = [
		// name of the attribute => name of the value object class
		'email' => Email::class
	];
	
	// ...
}

Usage

When accessing attributes of your model normally, any attribute you've set up for casting will be returned as an instance of the Value Object.

$user = User::find($id);

$user->email; // returns instance of App\ValueObjects\Email
$user->email->toScalar(); // "someone@example.com"
(string) $user->email; // "someone@example.com"

You can set an attribute set up for casting with either a scalar (native) value, or an instance of the Value Object.

$user = new User();

$user->email = "someone@example.com";
$user->email = new Email("someone@example.com");

License

This package is open-source software licensed under the MIT license.