protected function checkModuleArgument($paramValue)
    {
        if (!preg_match('#^([a-z0-9]+):([\+-]?[0-9]+|up|down)$#i', $paramValue, $matches)) {
            throw new \InvalidArgumentException(
                'Arguments must be in format moduleName:[+|-]position where position is an integer or up or down.'
            );
        }

        $this->moduleQuery->clear();
        $module = $this->moduleQuery->findOneByCode($matches[1]);
        if ($module === null) {
            throw new \RuntimeException(sprintf('%s module does not exists. Try to refresh first.', $matches[1]));
        }

        $this->modulesList[] = $matches[1];
        $this->positionsList[] = $matches[2];
    }