protected function makeBetweenCacheKey(Carbon $from, Carbon $until, $locale, $cacheKey)
    {
        $key = 'tracker.between.' . $cacheKey . '.';
        $key .= (is_null($locale) ? '' : $locale . '.');

        return $key . $from->timestamp . '-' . $until->timestamp;
    }
protected function makeBetweenCacheKey(Carbon $from, Carbon $until, $locale, $cacheKey)
    {
        $key = 'tracker.between.' . $cacheKey . '.';
        $key .= (is_null($locale) ? '' : $locale . '.');

        return $key . $from->timestamp . '-' . $until->timestamp;
    }
protected function makeBetweenCacheKey ( Carbon $ from , Carbon $ until , $ locale , $ cacheKey ) { $ key = 'tracker.between.' . $ cacheKey . '.' ; $ key .= ( is_null ( $ locale ) ? '' : $ locale . '.' ) ; return $ key . $ from -> timestamp . '-' . $ until -> timestamp ; }
Makes the cache key

@param Carbon $from
@param Carbon $until
@param string $locale
@param string $cacheKey
@return string
Makes the cache key