I want to add a custom validation to text input, I followed the instruction provided in https://www.drupal.org/docs/8/modules/webform/webform-cookbook/how-to-add-custom-validation-to-a-webform-element
I have a requirement which needs to verify an id entered into a text box, by making a REST API call to another system, the issue is to make that REST API call, I need another text parameter which is also inputed into the webform. I have written a custom handler which makes that rest call, but that custom handler work on webform post save option only, how can I pass more than 2 fields to the validate function mentioned in the example given.
function onboarding_webform_element_alter(array &$element, FormStateInterface $form_state, array $context) {
// check for desired element
if (isset($element['#webform_id']) && $element['#webform_id'] === 'register_account--surname'){
$surname= $element['#default_value'];
$form_state->setValue('SOME_NAME', $surname);
}
if (isset($element['#webform_id']) && $element['#webform_id'] === 'register_account--proda_id') {
$element['#element_validate'][] = array(
'Drupal\dhs_vendor_onboarding\Validate\DhsValidateConstraint',
'validate'
);
}
}
In the validate function:
public static function validate(array &$element, FormStateInterface $formState, array &$form) {
ksm($formState->getValue('SOME_NAME'));
$webformKey = $element['#webform_key'];
$value = $formState->getValue($webformKey);
$surname= $form_state$formState->getValue('SOME_NAME');
}
I am not getting any value for surname
