public function RssFields::buildOptionsForm in Views RSS 8.3

Same name in this branch

1. 8.3 src/Plugin/views/style/RssFields.php \Drupal\views_rss\Plugin\views\style\RssFields::buildOptionsForm()
2. 8.3 src/Plugin/views/row/RssFields.php \Drupal\views_rss\Plugin\views\row\RssFields::buildOptionsForm()

Same name and namespace in other branches

1. 8.2 src/Plugin/views/row/RssFields.php \Drupal\views_rss\Plugin\views\row\RssFields::buildOptionsForm()

Provide a form for setting options.

Overrides RowPluginBase::buildOptionsForm

File

src/Plugin/views/row/RssFields.php, line 51

Definition of Drupal\views\Plugin\views\row\RssFields.

Class

RssFields

Renders an RSS item based on fields.

Namespace

Drupal\views_rss\Plugin\views\row

Code

public function buildOptionsForm(&$form, FormStateInterface $form_state) {
  parent::buildOptionsForm($form, $form_state);
  $initial_labels = array(
    '' => $this
      ->t('- None -'),
  );
  $view_fields_labels = $this->displayHandler
    ->getFieldLabels();
  $view_fields_labels = array_merge($initial_labels, $view_fields_labels);
  $item_elements = views_rss_get('item_elements');
  if (count($item_elements)) {
    foreach ($item_elements as $module => $module_item_elements) {
      foreach ($module_item_elements as $element => $definition) {
        if (!isset($definition['configurable']) || $definition['configurable']) {
          list($namespace, $element_name) = views_rss_extract_element_names($element, 'core');

          // Add fieldset for namespace if not yet added.
          if (!isset($form['item'][$namespace])) {
            $form['item'][$namespace] = array(
              '#type' => 'details',
              '#title' => t('Item elements : @namespace', array(
                '@namespace' => $namespace,
              )),
              '#description' => t('Select fields containing relevant values for &lt;item&gt; elements in "@namespace" namespace. See <a href="@guide_url">Views RSS documentation</a> for more information.', array(
                '@namespace' => $namespace,
                '@guide_url' => Url::fromUri('http://drupal.org/node/1344136'),
              )),
              '#open' => FALSE,
            );
          }

          // Prepare form element.
          $default_value = NULL;
          if (!empty($this->options['item'][$namespace][$module][$element_name])) {
            $default_value = $this->options['item'][$namespace][$module][$element_name];
          }
          elseif (!empty($definition['group'])) {
            $default_value = $this->options['item'][$namespace][$module][$definition['group']][$element_name];
          }
          $form_item = array(
            '#type' => 'select',
            '#title' => Xss::filter(isset($definition['title']) ? $definition['title'] : $element_name),
            '#description' => Xss::filter(isset($definition['description']) ? $definition['description'] : NULL),
            '#options' => $view_fields_labels,
            '#default_value' => $default_value,
          );

          // Allow to overwrite default form element.
          if (!empty($definition['settings form'])) {
            $form_item = array_merge($form_item, $definition['settings form']);

            // Make sure that #options is an associative array.
            if (!empty($definition['settings form']['#options'])) {
              $form_item['#options'] = views_rss_map_assoc($definition['settings form']['#options']);
            }
          }

          // Add help link if provided.
          if (isset($definition['help']) && $definition['help']) {
            $form_item['#description'] .= ' ' . \Drupal::l('[?]', Url::fromUri($definition['help']), array(
              'attributes' => array(
                'title' => t('Need more information?'),
              ),
            ));
          }

          // Check if element should be displayed in a subgroup.
          if (isset($definition['group']) && $definition['group']) {

            // Add a subgroup to the form if it not yet added.
            if (!isset($form['item'][$namespace][$module][$definition['group']])) {

              // Does module provide the group definition?
              $group_title = !empty($element_groups[$module][$definition['group']]['title']) ? $element_groups[$module][$definition['group']]['title'] : $definition['group'];
              $group_description = !empty($element_groups[$module][$definition['group']]['description']) ? $element_groups[$module][$definition['group']]['description'] : NULL;
              $form['item'][$namespace][$module][$definition['group']] = array(
                '#type' => 'details',
                '#title' => Xss::filter($group_title),
                '#description' => Xss::filter($group_description),
                '#open' => FALSE,
              );
            }
            $form['item'][$namespace][$module][$definition['group']][$element_name] = $form_item;
          }
          else {
            $form['item'][$namespace][$module][$element_name] = $form_item;
          }
        }
      }
    }
  }
}