/**
* Adjust form fields to given page.
*
* @param \FormFieldModel[] $formFields
* @param string $formId
* @param \Form $form
*/
public function compileFormFields($formFields, $formId, \Form $form)
{
// Make sure empty form fields arrays are skipped
if (0 === count($formFields)) {
return $formFields;
}
$manager = new MPFormsFormManager($form->id);
// Don't try to render multi page form if no valid combination
if (!$manager->isValidFormFieldCombination()) {
return $manager->getFieldsWithoutPageBreaks();
}
// Do not let Contao validate anything if user wants to go back
if ('back' === $_POST['mp_form_pageswitch']) {
$this->redirectToStep($manager, $manager->getPreviousStep());
}
// Validate previous steps data
if (!$manager->isFirstStep()) {
$vResult = $manager->validateSteps(0, $manager->getCurrentStep() - 1);
if (true !== $vResult) {
$manager->setPreviousStepsWereInvalid();
$this->redirectToStep($manager, $vResult);
}
}
// If someone wanted to skip the page, fake form submission so fields
// are validated and show the error message.
if ($manager->getPreviousStepsWereInvalid()) {
\Input::setPost('FORM_SUBMIT', $manager->getFormId());
$manager->resetPreviousStepsWereInvalid();
}
return $manager->getFieldsForStep($manager->getCurrentStep());
}
