function faq_ask_form_node_faq_form_alter in FAQ_Ask 8

Implements hook_form_FORM_ID_alter().

This is how we build the "ask question" form.

@TODO: Make sure this is called after the taxonomy is added, so that we may delete or modify the taxonomy part of the form if we want to.

File

./faq_ask.module, line 42

This module is an add-on to FAQ module, allows users to 'ask question'.

Code

function faq_ask_form_node_faq_form_alter(&$form, FormStateInterface $form_state) {
  $user = \Drupal::currentUser();

  // Issue #1280446 by deck7uk.
  // If this form is reached, user can ask question but should not answer.
  if ($user
    ->hasPermission('ask question') && !$user
    ->hasPermission('answer question')) {

    // Make sure the ask query is set.
    $_GET['ask'] = 1;
  }
  if (!isset($_GET['ask']) || $_GET['ask'] != 1 && $_GET['ask'] != 'TRUE') {

    // Do not modify form if ask query is not set.
    return;
  }
  $language = \Drupal::languageManager()
    ->getCurrentLanguage()
    ->getId();
  if (!$user
    ->hasPermission('view own unpublished content') || $user
    ->id() == 0) {
    $form_state
      ->setRedirect('faq-page');
  }
  $form['#title'] = t('Ask a Question');

  // Set the published field off and make sure they can't override it.
  $form['options']['status']['#default_value'] = FALSE;
  $form['options']['status']['#disabled'] = TRUE;
  $faq_ask_settings = \Drupal::config('faq_ask.settings');

  // Add default text to body field.
  $form['body']['#default_value'] = $faq_ask_settings
    ->get('unanswered');

  // Hide the body elements (we'll dummy one later) and the menu elements.
  hide($form['body']);
  hide($form['menu']);
  hide($form['options']);
  hide($form['upload']);
  $form['additional_settings']['#access'] = FALSE;
  $form['upload']['#access'] = FALSE;

  // Check if only experts can categorize the question.
  if ($faq_ask_settings
    ->get('categorize')) {

    // Hide all taxonomy fields.
    $fields = \Drupal::entityManager()
      ->getFieldDefinitions('node', 'faq');
    foreach ($fields as $name => $properties) {
      if (!empty($properties
        ->getTargetBundle())) {
        $fieldSettings = $properties
          ->getSettings();
        if (array_key_exists('handler', $fieldSettings)) {
          if ($fieldSettings['handler'] == 'default:taxonomy_term' && isset($form[$name])) {

            // Hide form if it is a taxonomy field.
            hide($form[$name]);

            // If hidden, then do not expect it to be required.
            $form[$name][$language]['#required'] = FALSE;
          }
        }
      }
    }
  }

  // If we're supposed to notify asker on answer, add form item for this.
  if ($faq_ask_settings
    ->get('notify_asker')) {

    // If asker is anonymous, add an optional e-mail field.
    if ($user
      ->id() == 0) {

      // Form field for e-mail.
      $form['faq_email'] = array(
        '#type' => 'textfield',
        '#title' => t('Notification E-mail (optional)'),
        '#default_value' => '',
        '#weight' => 10,
        '#description' => t('Write your e-mail here if you would like to be notified when the question is answered.'),
      );
    }
    else {

      // Checkbox for notification.
      $form['notify_mail'] = array(
        '#type' => 'checkbox',
        '#title' => t('Notify by E-mail (optional)'),
        '#default_value' => FALSE,
        '#weight' => 10,
        '#description' => t('Check this box if you would like to be notified when the question is answered.'),
      );
    }
  }

  // Add validation of the e-mail field.
  if (!isset($form['#validate'])) {
    $form['#validate'] = array();
  }
  $form['#validate'][] = 'faq_ask_form_validate';

  // Make sure we know we came from here.
  $form['faq_ask'] = array(
    '#type' => 'value',
    '#value' => TRUE,
  );
  $form['actions']['submit']['#submit'][] = 'faq_ask_submit';

  // Handle special cases if this is a block form.
  if (isset($_GET['block'])) {
    if ($_GET['block']) {

      // Shorter description on Qestion field + move it higher.
      $form['title']['#description'] = t('Question to be answered.');
      $form['title']['#weight'] = '-5';

      // Make sure it is not set to 60 as default.
      $form['title']['#size'] = '';

      // Shorter description on detailed question field.
      $form['detailed_question']['#description'] = t('Longer question text.');

      // Make sure it is not set to 60 as default.
      $form['detailed_question']['#size'] = '';

      // Make sure the category field does not expand too wide.
      $fields = \Drupal::entityManager()
        ->getFieldDefinitions('node', 'faq');
      foreach ($fields as $name => $properties) {
        if ($properties['display']['default']['module'] != 'taxonomy' && isset($form[$name]) && $properties['field_name'] == 'field_tags') {
          $form[$name][$form[$name]['#language']]['#cols'] = '';
          $form[$name][$form[$name]['#language']]['#size'] = '';
        }
      }

      // Email field.
      if (isset($form['faq_email'])) {

        // Make sure it is not set to 60 as default.
        $form['faq_email']['#size'] = '';
      }
    }
  }
}