DocumentHandler::checkRequiredInputParams

protected function checkRequiredInputParams(array $inputParams, array $required)
{
	foreach ($required as $item)
	{
		if(
			!isset($inputParams[$item]) ||
			(
				!$inputParams[$item] &&
				!(is_string($inputParams[$item]) && $inputParams[$item] !== '') &&
				!($inputParams[$item] === 0)
			)
		)
		{
			$this->errorCollection->add(array(new Error(Loc::getMessage('DISK_DOC_HANDLER_ERROR_REQUIRED_PARAMETER', array('#PARAM#' => $item)), self::ERROR_REQUIRED_PARAMETER)));
			return false;
		}
	}

	return true;
}