class CommentNodeFormatter in Open Social 8

Provides a node comment formatter.

Plugin annotation

@FieldFormatter(
  id = "comment_node",
  module = "social_core",
  label = @Translation("Comment on node list"),
  field_types = {
    "comment"
  },
  quickedit = {
    "editor" = "disabled"
  }
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\Core\Field\PluginSettingsBase implements DependentPluginInterface, PluginSettingsInterface
      • class \Drupal\Core\Field\FormatterBase implements FormatterInterface, ContainerFactoryPluginInterface
        • class \Drupal\comment\Plugin\Field\FieldFormatter\CommentDefaultFormatter implements ContainerFactoryPluginInterface uses DeprecatedServicePropertyTrait
          • class \Drupal\social_core\Plugin\Field\FieldFormatter\CommentNodeFormatter

File

modules/social_features/social_core/src/Plugin/Field/FieldFormatter/CommentNodeFormatter.php, line 30

Namespace

Drupal\social_core\Plugin\Field\FieldFormatter

class CommentNodeFormatter extends CommentDefaultFormatter {

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    return [
      'num_comments' => 2,
      'always_show_all_comments' => FALSE,
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    $output = [];
    $field_name = $this->fieldDefinition
      ->getName();
    $entity = $items
      ->getEntity();
    $status = $items->status;
    $access_comments_in_group = FALSE;

    // Exclude entities without the set id.
    if (!empty($entity
      ->id())) {
      $group_contents = GroupContent::loadByEntity($entity);
    }
    if (!empty($group_contents)) {

      // Add cache contexts.
      $elements['#cache']['contexts'][] = 'group.type';
      $elements['#cache']['contexts'][] = 'group_membership';
      $account = \Drupal::currentUser();
      $renderer = \Drupal::service('renderer');
      foreach ($group_contents as $group_content) {
        $group = $group_content
          ->getGroup();
        $membership = $group
          ->getMember($account);
        $renderer
          ->addCacheableDependency($elements, $membership);
        if ($group
          ->hasPermission('access comments', $account)) {
          $access_comments_in_group = TRUE;
        }
      }
    }
    $comments_per_page = $this
      ->getSetting('num_comments');
    if ($access_comments_in_group && $status != CommentItemInterface::HIDDEN && empty($entity->in_preview) && !in_array($this->viewMode, [
      'search_result',
      'search_index',
    ])) {
      $comment_settings = $this
        ->getFieldSettings();
      $comment_count = $entity
        ->get($field_name)->comment_count;

      // Only attempt to render comments if the entity has visible comments.
      // Unpublished comments are not included in
      // $entity->get($field_name)->comment_count, but unpublished comments
      // should display if the user is an administrator.
      $elements['#cache']['contexts'][] = 'user.permissions';
      if ($this->currentUser
        ->hasPermission('access comments') || $this->currentUser
        ->hasPermission('administer comments')) {
        $output['comments'] = [];
        if ($comment_count || $this->currentUser
          ->hasPermission('administer comments')) {
          $mode = $comment_settings['default_mode'];
          $comments = $this
            ->loadThread($entity, $field_name, $mode, $comments_per_page, FALSE);
          if ($comments) {
            $build = $this->viewBuilder
              ->viewMultiple($comments);
            $output['comments'] += $build;
          }
        }

        // Prepare the show all comments link.
        $t_args = [
          ':num_comments' => $comment_count,
        ];

        // Set link classes to be added to the button.
        $more_link_options = [
          'attributes' => [
            'class' => [
              'btn',
              'btn-flat',
              'brand-text-primary',
            ],
          ],
        ];

        // Set path to node.
        $link_url = $entity
          ->urlInfo('canonical');

        // Attach the attributes.
        $link_url
          ->setOptions($more_link_options);
        if ($comment_count == 0) {
          $more_link = $this
            ->t(':num_comments comments', $t_args);
          $output['more_link'] = $more_link;
        }
        elseif ($comment_count == 1) {
          $more_link = $this
            ->t(':num_comments comment', $t_args);
          $output['more_link'] = $more_link;
        }
        else {
          $more_link = $this
            ->t('Show all :num_comments comments', $t_args);
        }

        // Build the link.
        $more_button = Link::fromTextAndUrl($more_link, $link_url);
        $always_show_all_comments = $this
          ->getSetting('always_show_all_comments');
        if ($always_show_all_comments && $comment_count > 1) {
          $output['more_link'] = $more_button;
        }
        elseif ($comments_per_page && $comment_count > $comments_per_page) {
          $output['more_link'] = $more_button;
        }
      }
      $elements[] = $output + [
        '#comment_type' => $this
          ->getFieldSetting('comment_type'),
        '#comment_display_mode' => $this
          ->getFieldSetting('default_mode'),
        'comments' => [],
        'comment_form' => [],
        'more_link' => [],
      ];
    }
    return $elements;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $element = [];
    $element['num_comments'] = [
      '#type' => 'number',
      '#min' => 0,
      '#max' => 10,
      '#title' => $this
        ->t('Number of comments'),
      '#default_value' => $this
        ->getSetting('num_comments'),
    ];
    $element['always_show_all_comments'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Always show all comments link'),
      '#description' => $this
        ->t('If selected it will show a "all comments" link if there is at least 1 comment.'),
      '#default_value' => $this
        ->getSetting('always_show_all_comments'),
    ];
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    return [];
  }

  /**
   * {@inheritdoc}
   *
   * @see Drupal\comment\CommentStorage::loadThead()
   */
  public function loadThread(EntityInterface $entity, $field_name, $mode, $comments_per_page = 0, $pager_id = 0) {

    // @TODO: Refactor this to use CommentDefaultFormatter->loadThread with dependency injection instead.
    $query = db_select('comment_field_data', 'c');
    $query
      ->addField('c', 'cid');
    $query
      ->condition('c.entity_id', $entity
      ->id())
      ->condition('c.entity_type', $entity
      ->getEntityTypeId())
      ->condition('c.field_name', $field_name)
      ->condition('c.default_langcode', 1)
      ->isNull('c.pid')
      ->addTag('entity_access')
      ->addTag('comment_filter')
      ->addMetaData('base_table', 'comment')
      ->addMetaData('entity', $entity)
      ->addMetaData('field_name', $field_name);
    if (!$this->currentUser
      ->hasPermission('administer comments')) {
      $query
        ->condition('c.status', CommentInterface::PUBLISHED);
    }
    if ($mode == CommentManagerInterface::COMMENT_MODE_FLAT) {
      $query
        ->orderBy('c.cid', 'DESC');
    }
    else {

      // See comment above. Analysis reveals that this doesn't cost too
      // much. It scales much much better than having the whole comment
      // structure.
      $query
        ->addExpression('SUBSTRING(c.thread, 1, (LENGTH(c.thread) - 1))', 'torder');
      $query
        ->orderBy('torder', 'DESC');
    }

    // Limit The number of results.
    if ($comments_per_page) {
      $query
        ->range(0, $comments_per_page);
    }
    $cids = $query
      ->execute()
      ->fetchCol();
    $comments = [];
    if ($cids) {
      $comments = entity_load_multiple('comment', $cids);
    }
    return $comments;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CommentDefaultFormatter::$currentUser	protected	property	The current user.
CommentDefaultFormatter::$deprecatedProperties	protected	property
CommentDefaultFormatter::$entityDisplayRepository	protected	property	The entity display repository.
CommentDefaultFormatter::$entityFormBuilder	protected	property	The entity form builder.
CommentDefaultFormatter::$routeMatch	protected	property
CommentDefaultFormatter::$storage	protected	property	The comment storage.
CommentDefaultFormatter::$viewBuilder	protected	property	The comment render controller.
CommentDefaultFormatter::calculateDependencies	public	function	Calculates dependencies for the configured plugin. Overrides PluginSettingsBase::calculateDependencies
CommentDefaultFormatter::create	public static	function	Creates an instance of the plugin. Overrides FormatterBase::create
CommentDefaultFormatter::getViewModes	protected	function	Provides a list of comment view modes for the configured comment type.
CommentDefaultFormatter::__construct	public	function	Constructs a new CommentDefaultFormatter. Overrides FormatterBase::__construct
CommentNodeFormatter::defaultSettings	public static	function	Defines the default settings for this plugin. Overrides CommentDefaultFormatter::defaultSettings
CommentNodeFormatter::loadThread	public	function
CommentNodeFormatter::settingsForm	public	function	Returns a form to configure settings for the formatter. Overrides CommentDefaultFormatter::settingsForm
CommentNodeFormatter::settingsSummary	public	function	Returns a short summary for the current formatter settings. Overrides CommentDefaultFormatter::settingsSummary
CommentNodeFormatter::viewElements	public	function	Builds a renderable array for a field value. Overrides CommentDefaultFormatter::viewElements
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
DeprecatedServicePropertyTrait::__get	public	function	Allows to access deprecated/removed properties.
FormatterBase::$fieldDefinition	protected	property	The field definition.
FormatterBase::$label	protected	property	The label display setting.
FormatterBase::$settings	protected	property	The formatter settings. Overrides PluginSettingsBase::$settings
FormatterBase::$viewMode	protected	property	The view mode.
FormatterBase::getFieldSetting	protected	function	Returns the value of a field setting.
FormatterBase::getFieldSettings	protected	function	Returns the array of field settings.
FormatterBase::isApplicable	public static	function	Returns if the formatter can be used for the provided field. Overrides FormatterInterface::isApplicable	14
FormatterBase::prepareView	public	function	Allows formatters to load information for field values being displayed. Overrides FormatterInterface::prepareView	2
FormatterBase::view	public	function	Builds a renderable array for a fully themed field. Overrides FormatterInterface::view	1
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	3
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
PluginSettingsBase::$defaultSettingsMerged	protected	property	Whether default settings have been merged into the current $settings.
PluginSettingsBase::$thirdPartySettings	protected	property	The plugin settings injected by third party modules.
PluginSettingsBase::getSetting	public	function	Returns the value of a setting, or its default value if absent. Overrides PluginSettingsInterface::getSetting
PluginSettingsBase::getSettings	public	function	Returns the array of settings, including defaults for missing settings. Overrides PluginSettingsInterface::getSettings
PluginSettingsBase::getThirdPartyProviders	public	function	Gets the list of third parties that store information. Overrides ThirdPartySettingsInterface::getThirdPartyProviders
PluginSettingsBase::getThirdPartySetting	public	function	Gets the value of a third-party setting. Overrides ThirdPartySettingsInterface::getThirdPartySetting
PluginSettingsBase::getThirdPartySettings	public	function	Gets all third-party settings of a given module. Overrides ThirdPartySettingsInterface::getThirdPartySettings
PluginSettingsBase::mergeDefaults	protected	function	Merges default settings values into $settings.
PluginSettingsBase::onDependencyRemoval	public	function	Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval	3
PluginSettingsBase::setSetting	public	function	Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings	public	function	Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting	public	function	Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting	public	function	Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.