Draft system for Eloquent Models

DraftTrait.php

<?php namespace path\to\your\traits\directory;

/**
 * Class DraftTrait
 *
 * @package app\acme\Services\Traits
 */
trait DraftTrait {

    /**
     * Trait override for draft features.
     *
     * @param array $attributes
     */
    public function save(Array $attributes = [])
    {
        // Upon saving the model event...
        parent::saving(function ($model) {

            // If we are previewing the model change.
            if (\Input::get('preview')) {

                // Set the model into the session.
                \Session::set(__CLASS__ . '.' . $model->id, $this);

                // Don't save to the model.
                return false;

            }

            // Clear the session if we've decided to publish.
            \Session::forget(__CLASS__ . '.' . $this->id);

        });

        // Continue saving as usual...
        parent::save($attributes);
    }

}