Processes views and sets the default RSS view mode if necessary.

Parameters

\Drupal\views\ViewEntityInterface $view: The view entity.

string|null $previous_view_mode: The previous view mode.

Return value

bool TRUE if the view was updated with a default RSS view mode.

2 calls to ViewsConfigUpdater::processRssViewModeUpdate()

ViewsConfigUpdater::needsRssViewModeUpdate in core/modules/views/src/ViewsConfigUpdater.php

Checks for views needing a default RSS view mode.

ViewsConfigUpdater::updateAll in core/modules/views/src/ViewsConfigUpdater.php

Performs all required updates.

File

core/modules/views/src/ViewsConfigUpdater.php, line 424

Class

ViewsConfigUpdater

Provides a BC layer for modules providing old configurations.

Namespace

Drupal\views

Code

public function processRssViewModeUpdate(ViewEntityInterface $view, ?string $previous_view_mode = NULL) : bool {
  $changed = FALSE;
  $displays = $view->get('display');
  // Row types that need updating.
  $row_types = [
    'comment_rss' => 'comment',
    'node_rss' => 'node',
  ];
  foreach ($displays as &$display) {
    if (isset($display['display_options']['row']['options']['view_mode']) && array_key_exists($display['display_options']['row']['type'], $row_types) && $display['display_options']['row']['options']['view_mode'] === 'default') {
      // When system.rss is already removed but a view is saved, we still need
      // to try and set the view_mode to something more sane. But detecting
      // if the view mode was always default, or default because it used the
      // system.rss setting is hard. So if there is a default mode available
      // it will use that.
      // It would make sense to use any RSS view_mode if available, but that
      // would mean 'default' can never be set as a view mode. That is an
      // issue, therefore, if we have a default view mode available, we will
      // use that.
      if ($previous_view_mode === NULL) {
        $view_modes = $this->entityDisplayRepository
          ->getViewModes($row_types[$display['display_options']['row']['type']]);
        if (array_key_exists('default', $view_modes)) {
          return FALSE;
        }
        // If there is no default, the most likely view mode is RSS. If that
        // is available we use that. Otherwise, fall back to the first
        // available.
        $probable_view_mode = isset($view_modes['rss']) ? 'rss' : array_key_first($view_modes);
        $display['display_options']['row']['options']['view_mode'] = $probable_view_mode;
        $changed = TRUE;
      }
      else {
        $display['display_options']['row']['options']['view_mode'] = $previous_view_mode;
        $changed = TRUE;
      }
    }
  }
  if ($changed) {
    $view->set('display', $displays);
  }
  return $changed;
}

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