class RSSEnclosureFormatter in Drupal 8

Plugin implementation of the 'file_rss_enclosure' formatter.

Plugin annotation

@FieldFormatter(
  id = "file_rss_enclosure",
  label = @Translation("RSS enclosure"),
  field_types = {
    "file"
  }
)

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\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase
          • class \Drupal\file\Plugin\Field\FieldFormatter\FileFormatterBase
            • class \Drupal\file\Plugin\Field\FieldFormatter\RSSEnclosureFormatter

File

core/modules/file/src/Plugin/Field/FieldFormatter/RSSEnclosureFormatter.php, line 18

Namespace

Drupal\file\Plugin\Field\FieldFormatter

class RSSEnclosureFormatter extends FileFormatterBase {

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $entity = $items
      ->getEntity();

    // Add the first file as an enclosure to the RSS item. RSS allows only one
    // enclosure per item. See: http://wikipedia.org/wiki/RSS_enclosure
    foreach ($this
      ->getEntitiesToView($items, $langcode) as $delta => $file) {

      /** @var \Drupal\file\FileInterface $file */
      $entity->rss_elements[] = [
        'key' => 'enclosure',
        'attributes' => [
          // In RSS feeds, it is necessary to use absolute URLs. The 'url.site'
          // cache context is already associated with RSS feed responses, so it
          // does not need to be specified here.
          'url' => $file
            ->createFileUrl(FALSE),
          'length' => $file
            ->getSize(),
          'type' => $file
            ->getMimeType(),
        ],
      ];
    }
    return [];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
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
EntityReferenceFormatterBase::getEntitiesToView	protected	function	Returns the referenced entities for display.	1
EntityReferenceFormatterBase::prepareView	public	function	Loads the entities referenced in that field across all the entities being viewed. Overrides FormatterBase::prepareView
EntityReferenceFormatterBase::view	public	function	Overrides FormatterBase::view
FileFormatterBase::checkAccess	protected	function	Checks access to the given entity. Overrides EntityReferenceFormatterBase::checkAccess
FileFormatterBase::needsEntityLoad	protected	function	Returns whether the entity referenced by an item needs to be loaded. Overrides EntityReferenceFormatterBase::needsEntityLoad	1
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::$viewMode	protected	property	The view mode.
FormatterBase::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create	11
FormatterBase::getFieldSetting	protected	function	Returns the value of a field setting.
FormatterBase::getFieldSettings	protected	function	Returns the array of field settings.
FormatterBase::isApplicable	public static	function	Returns if the formatter can be used for the provided field. Overrides FormatterInterface::isApplicable	14
FormatterBase::settingsForm	public	function	Returns a form to configure settings for the formatter. Overrides FormatterInterface::settingsForm	24
FormatterBase::settingsSummary	public	function	Returns a short summary for the current formatter settings. Overrides FormatterInterface::settingsSummary	22
FormatterBase::__construct	public	function	Constructs a FormatterBase object. Overrides PluginBase::__construct	11
MessengerTrait::$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::calculateDependencies	public	function	Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies	6
PluginSettingsBase::defaultSettings	public static	function	Defines the default settings for this plugin. Overrides PluginSettingsInterface::defaultSettings	42
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 $settings.
PluginSettingsBase::onDependencyRemoval	public	function	Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval	3
PluginSettingsBase::setSetting	public	function	Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings	public	function	Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting	public	function	Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting	public	function	Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
RSSEnclosureFormatter::viewElements	public	function	Builds a renderable array for a field value. Overrides FormatterInterface::viewElements
StringTranslationTrait::$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.