Helpers file from a "random" Laravel project

helpers.php

<?php

use Illuminate\Support\Facades\Route;

function path_to_user_profile_image($filename)
{
    if ($filename != '') {
        return url('img/children/' . $filename);
    }
    return url('img/default_child.png');
}

function path_to_user_profile_retina_image($filename)
{
    if ($filename != '') {
        return url('img/children/retina_' . $filename);
    }
    return url('img/default_child.png');
}

function path_to_dish_image($filename)
{
    if (empty($filename)) {
        return url('img/default.png');
    }
    return url('img/dishes/' . $filename);
}

function path_to_dish_retina_image($filename)
{
    if (empty($filename)) {
        return url('img/default.png');
    }
    return url('img/dishes/retina_' . $filename);
}

function getClassIfActive($route)
{
    if (Route::currentRouteName() == $route) {
        return 'active';
    } else {
        return '';
    }
}

function t($key)
{
    return trans($key);
}