old-town / old-town-workflow

     * @return DOMElement|null

     * @throws InvalidWriteWorkflowException

     */

    protected function printPostFunctions(DOMDocument $dom)

    {

        $postFunctions = $this->getPostFunctions();

        if ($postFunctions->count() > 0) {

            $postFunctionsElements = $dom->createElement('post-functions');

            foreach ($postFunctions as $function) {

                try {

                    $functionElement = $function->writeXml($dom);

                } catch (\Exception $e) {

                    $errMsg  = 'Ошибка сохранения workflow. Ошибка в post-function';

                    throw new InvalidWriteWorkflowException($errMsg, $e->getCode(), $e);

                }

                $postFunctionsElements->appendChild($functionElement);

            }

            return $postFunctionsElements;

        }

        return null;

    }

    /**

     * Вывод информации о функциях пред обработки

     *

     * @throws InvalidWriteWorkflowException

     */

    protected function printPreFunctions(DOMDocument $dom)

    {

        $preFunctions = $this->getPreFunctions();

        if ($preFunctions->count() > 0) {

            $preFunctionsElements = $dom->createElement('pre-functions');

            foreach ($preFunctions as $function) {

                try {

                    $functionElement = $function->writeXml($dom);

                } catch (\Exception $e) {

                    $errMsg  = 'Ошибка сохранения workflow. Ошибка в pre-function';

                    throw new InvalidWriteWorkflowException($errMsg, $e->getCode(), $e);

                }

                $preFunctionsElements->appendChild($functionElement);

            }

            return $preFunctionsElements;

        }

        return null;

    }

    /**