`.
*
* ```
*
*
* ```
*
* @see https://docs.typo3.org/permalink/t3viewhelper:typo3-fluid-form-radio
*/
final class RadioViewHelper extends AbstractFormFieldViewHelper
{
/**
* @var string
*/
protected $tagName = 'input';
public function initializeArguments(): void
{
parent::initializeArguments();
$this->registerArgument('errorClass', 'string', 'CSS class to set if there are errors for this ViewHelper', false, 'f3-form-error');
$this->registerArgument('checked', 'bool', 'Specifies that the input element should be preselected');
$this->registerArgument('value', 'string', 'Value of input tag. Required for radio buttons', true);
}
public function render(): string
{
$checked = $this->arguments['checked'];
$this->tag->addAttribute('type', 'radio');
$nameAttribute = $this->getName();
$valueAttribute = $this->getValueAttribute();
$propertyValue = null;
if ($this->hasMappingErrorOccurred()) {
$propertyValue = $this->getLastSubmittedFormData();
}
if ($checked === null && $propertyValue === null) {
$propertyValue = $this->getPropertyValue();
$propertyValue = $this->convertToPlainValue($propertyValue);
}
if ($propertyValue !== null) {
// no type-safe comparison by intention
$checked = $propertyValue == $valueAttribute;
}
$this->registerFieldNameForFormTokenGeneration($nameAttribute);
$this->tag->addAttribute('name', $nameAttribute);
$this->tag->addAttribute('value', $valueAttribute);
if ($checked === true) {
$this->tag->addAttribute('checked', 'checked');
}
$this->setErrorClassAttribute();
return $this->tag->render();
}
}