firefly-iii/app/Support/SingleCacheProperties.php

<?php
/**
 * SingleCacheProperties.php
 * Copyright (c) 2017 thegrumpydictator@gmail.com
 *
 * This file is part of Firefly III.
 *
 * Firefly III is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Firefly III is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
 */
declare(strict_types=1);

namespace FireflyIII\Support;

use Illuminate\Support\Collection;

/**
 * Class CacheProperties.
 */
class SingleCacheProperties extends CacheProperties
{
    /**
     *
     */
    public function __construct()
    {
        parent::__construct();
        $this->properties = new Collection;
        if (auth()->check()) {
            $this->addProperty(auth()->user()->id);
            $this->addProperty(app('preferences')->lastActivity());
        }
    }
}