public function getSelectField($renderApi, $unit, $fieldId, $postRequestValue = null)
{
$inputName = strlen($renderApi->getFormValue($unit, 'inputName')) > 0 ? $renderApi->getFormValue($unit, 'inputName') : $fieldId;
$formField = new \SelectField();
$formField->getElementProperties()->addAttribute("name", $inputName);
$formField->getElementProperties()->addAttribute("id", $fieldId);
$listOptions = $this->listOptions->getListOptions($renderApi, $unit);
if ($listOptions->hasOptions()) {
foreach ($listOptions->getOptions() as $option) {
/* @var $option \Option */
$optionField = new \OptionField();
$optionField->setContent($option->getName());
$elementProperties = $optionField->getElementProperties();
$elementProperties->addAttribute("value", $option->getValue());
if (is_null($postRequestValue) && $option->isChecked() || $postRequestValue === $option->getValue()) {
$elementProperties->addAttribute("selected", null);
}
$formField->add($optionField);
}
}
if ($this->formSubmit->isValid($renderApi, $unit) && !$this->isValidValue($unit, $postRequestValue)) {
$formField->getElementProperties()->addClass('vf__error');
}
return $formField;
}