function DynamicFormSections::submitForm

Final submit handler.

Reports what values were finally set.

Overrides FormInterface::submitForm

File

modules/ajax_example/src/Form/DynamicFormSections.php, line 177

Class

DynamicFormSections

Dynamically-enabled form with graceful no-JS degradation.

Namespace

Code

public function submitForm(array &$form, FormStateInterface $form_state) {
    $messenger = $this->messenger();
    // This is only executed when a button is pressed, not when the AJAXfield
    // select is changed.
    // Now handle the case of the next, previous, and submit buttons.
    // Only submit will result in actual submission, all others rebuild.
    if ($form_state->getValue('question_type_submit') == 'Choose') {
        $form_state->setValue('question_type_select', $form_state->getUserInput()['question_type_select']);
        $form_state->setRebuild();
    }
    if ($form_state->getValue('submit') == 'Submit your answer') {
        $form_state->setRebuild(FALSE);
        $answer = $form_state->getValue('question');
        // Special handling for the checkbox.
        if ($answer == 1 && $form['questions_fieldset']['question']['#type'] == 'checkbox') {
            $answer = $form['questions_fieldset']['question']['#title'];
        }
        if ($answer == $this->t('George Washington')) {
            $messenger->addMessage($this->t('You got the right answer: @answer', [
                '@answer' => $answer,
            ]));
        }
        else {
            $messenger->addMessage($this->t('Sorry, your answer (@answer) is wrong', [
                '@answer' => $answer,
            ]));
        }
        return;
    }
    // Sets the form to be rebuilt after processing.
    $form_state->setRebuild();
}