View Presenters for Laravel 5

PresentableTrait.php

<?php namespace App\Presenters;

trait PresentableTrait {

    protected $presenterInstance;

    public function present()
    {
        if (! $this->presenter)
        {
            throw new \Exception('Falta la propiedad presenter en la Entidad/Modelo');
        }
        if (! class_exists($this->presenter))
        {
            throw new \Exception("La clase '{$this->presenter}' no existe");
        }

        if ( ! $this->presenterInstance)
        {
            $this->presenterInstance = new $this->presenter($this);
        }

        return $this->presenterInstance;
    }
}

Presenter.php

<?php namespace App\Presenters;


abstract class Presenter {

    protected $entity;

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

    public function __get($property)
    {
        if (method_exists($this, $property))
        {
            return $this->{$property}();
        }

        return $this->entity->{$property};
    }
}