Laravel State

Like many things in Laravel, managing model states should be a breeze.

There has been a few solutions before the advent of PHP Enums, hwoever, this package is an attempt at what managing strict state in Laravel should feel like.

Documentation

All documentation is available at the documentation site.

Features

• Strictly defined states and trasitions
• PHP Enums support 💪
• Cast state to and from multiple attributes

Basic Example

use MOIREI\State\State;

/**
 * @property State $status
 */
class Order extends Model{
    protected function status(): Attribute{
        return State::make([
            State::on('created', 'paid'),
            State::on('paid', ['created', 'completed'])
            State::on('completed', 'archived')
        ]);
    }
}

Now transition states

dump($order->status->value); // `created`

$order->status->transitionTo('paid');

dump($order->status->value); // `paid`

With PHP Enum

use MOIREI\State\Traits\CastsEnumAttributesState;
use MOIREI\State\Traits\HasEnumState;
use MOIREI\State\State;

...

enum OrderStatus: string{
    use HasEnumState;

    case PENDING = 'pending';
    case PAID = 'paid';
    case CLOSED = 'closed';

    public static function states(){
        return [
            State::on(self::PENDING, [self::PAID, self::CLOSED]),
            State::on(self::PAID, self::CLOSED),
        ];
    }
}

...

/**
 * @property OrderStatus $status
 */
class Order extends Model{
    use CastsEnumAttributesState; // only if using casts

    protected $casts = [
        'status' => OrderStatus::class
    ];

    // or

    protected function status(): Attribute{
        return OrderStatus::useAttribute();
    }
}

...

// accepts enum value but fails if invalid
if($order->status->is('pending')){
    $order->status->transitionTo(OrderStatus::PAID);
}

// should throw
if($order->status->is('closed')){
    $order->status->transitionTo(...);
}

With state object

use MOIREI\State\State;

...

final class OrderStatus extends State{
    const PENDING = 'pending';
    const PAID = 'paid';
    const CLOSED = 'closed';

    public static function states(){
        return [
            State::on(static::PENDING, [static::PAID, static::CLOSED]),
            State::on(static::PAID, static::CLOSED),
        ];
    }
}

...

/**
 * @property OrderStatus $status
 */
class Order extends Model{

    protected $casts = [
        'status' => OrderStatus::class
    ];

    // or

    protected function status(): Attribute{
        return OrderStatus::useAttribute();
    }
}

...

// same as with enum above
if($order->status->is('pending')){
    $order->status->transitionTo('paid');
}

Installation

composer require moirei/laravel-state

Tests

composer test