A simple Expires trait for use in a laravel app on an Eloquent model. Requires ExpiringScope

Expires.php

<?php

namespace App;

use Carbon\Carbon;

trait Expires
{
    public static function bootExpires()
    {
        static::addGlobalScope(new ExpiringScope);

        static::saving(function($model) {
            $model->expires_at = Carbon::now()->addMinutes(15);
        });
    }

    public function willExpire()
    {
        return ! is_null($this->expires_at)
        && $this->expires_at->gt(Carbon::now());
    }

    public function hasExpired()
    {
        return ! is_null($this->expires_at)
        && $this->expires_at->format('Y') > 0
        && $this->expires_at->lt(Carbon::now());
    }

    /**
     * Get the name of the "expires at" column.
     *
     * @return string
     */
    public function getExpiresAtColumn()
    {
        return 'expires_at';
    }

    /**
     * Get the fully qualified "expires at" column.
     *
     * @return string
     */
    public function getQualifiedExpiresAtColumn()
    {
        return $this->getTable().'.'.$this->getExpiresAtColumn();
    }
}