<?php

namespace Questionnaire\Model;

use Questionnaire\Application;
use Symfony\Component\Yaml\Yaml;

abstract class QuestionnairePeer
{
    /**
     * @var string
     */
    protected static $yaml;

    protected static function getYaml()
    {
        if (null !== self::$yaml) {
            return self::$yaml;
        }

        $file = Application::getInstance()['config.locator']
            ->locate('questionnaire.yml');

        return self::$yaml = Yaml::parse($file);
    }
}