TextfieldViewHelper.php

<?php

namespace MyVendor\EventCenter\ViewHelpers\Form;


class TextfieldViewHelper extends \TYPO3\CMS\Fluid\ViewHelpers\Form\TextfieldViewHelper {

	 /**
	 * Get errors for the property and form name of this view helper
	 *
	 * @return \TYPO3\CMS\Extbase\Error\Result
	 */
	protected function getMappingResultsForProperty() {
		$originalRequestMappingResults = $this->controllerContext->getRequest()->getOriginalRequestMappingResults();
		if ($this->isObjectAccessorMode()) {
			$formObjectName = $this->viewHelperVariableContainer->get('TYPO3\\CMS\\Fluid\\ViewHelpers\\FormViewHelper', 'formObjectName');
			return $originalRequestMappingResults->forProperty($formObjectName)->forProperty($this->arguments['property']);
		} else {
			return $originalRequestMappingResults->forProperty($this->arguments['name']);
		}
	}

}