CaracoleBundle/Solver/Statistic/StatisticSolver.php

<?php

namespace Lc\CaracoleBundle\Solver\Statistic;

class StatisticSolver
{
    const INTERVAL_DAY = 'D';
    const INTERVAL_WEEK = 'W';
    const INTERVAL_MONTH = 'M';

    public function getIntervalChoices()
    {
        return [
            self::INTERVAL_DAY,
            self::INTERVAL_WEEK,
            self::INTERVAL_MONTH
        ];
    }

}