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class ParagraphBlock in Paragraph blocks 8

Same name and namespace in other branches
  1. 8.2 src/Plugin/Block/ParagraphBlock.php \Drupal\paragraph_blocks\Plugin\Block\ParagraphBlock
  2. 3.x src/Plugin/Block/ParagraphBlock.php \Drupal\paragraph_blocks\Plugin\Block\ParagraphBlock

Provides a block to a paragraph value on an entity.

Plugin annotation


@Block(
  id = "paragraph_field",
  deriver = "Drupal\paragraph_blocks\Plugin\Deriver\ParagraphBlocksDeriver",
  category = @Translation("Content")
)

Hierarchy

Expanded class hierarchy of ParagraphBlock

File

src/Plugin/Block/ParagraphBlock.php, line 22

Namespace

Drupal\paragraph_blocks\Plugin\Block
View source
class ParagraphBlock extends BlockBase implements ContextAwarePluginInterface, ContainerFactoryPluginInterface {

  /**
   * The entity type id.
   *
   * @var string
   */
  protected $entityTypeId;

  /**
   * The field name.
   *
   * @var string
   */
  protected $fieldName;

  /**
   * The field delta.
   *
   * @var int
   */
  protected $fieldDelta;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityManagerInterface
   */
  protected $entityManager;

  /**
   * Constructs a new ParagraphBlock.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin ID for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
   *   The entity manager.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityManagerInterface $entity_manager) {
    $this->entityManager = $entity_manager;

    // Get the field delta from the plugin.
    list(, $entity_type_id, $field_name, $field_delta) = explode(':', $plugin_id);
    $this->entityTypeId = $entity_type_id;
    $this->fieldName = $field_name;
    $this->fieldDelta = $field_delta;
    parent::__construct($configuration, $plugin_id, $plugin_definition);
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('entity.manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function build() {

    // Get the referencing and referenced entity.

    /** @var \Drupal\Core\Entity\EntityInterface $entity */
    $paragraph = NULL;
    $entity = $this
      ->getContextEntity();
    if ($entity) {
      $referenced_entities = $entity
        ->get($this->fieldName)
        ->referencedEntities();
      if (isset($referenced_entities[$this->fieldDelta])) {
        $paragraph = $referenced_entities[$this->fieldDelta];
      }
    }
    if (!$paragraph) {

      // The Content group block exists on the page, but the page's Content
      // group has been removed.
      return [
        '#markup' => $this
          ->t('This block is broken. The Content group or the paragraph does not exist.'),
      ];
    }

    // Build the render array.

    /** @var \Drupal\Core\Entity\EntityViewBuilder $view_builder */
    $view_builder = $this->entityManager
      ->getViewBuilder($paragraph
      ->getEntityTypeId());
    $build = $view_builder
      ->view($paragraph, 'default');

    // Add geysir contextual links.
    if (function_exists('geysir_contextual_links')) {
      $link_options = [
        'parent_entity_type' => $entity
          ->getEntityType()
          ->id(),
        'parent_entity' => $entity
          ->id(),
        'field' => $this->fieldName,
        'field_wrapper_id' => Html::getUniqueId('geysir--' . $this->fieldName),
        'delta' => $this->fieldDelta,
        'js' => 'nojs',
        'paragraph' => $paragraph
          ->id(),
      ];
      $build['#geysir_field_paragraph_links'] = geysir_contextual_links($link_options);
      $build['#theme_wrappers'][] = 'geysir_field_paragraph_wrapper';
      $build['#attributes']['data-geysir-field-paragraph-field-wrapper'] = $link_options['field_wrapper_id'];
    }

    // Set the cache data appropriately.
    CacheableMetadata::createFromObject($this
      ->getContext('entity'))
      ->applyTo($build);
    return $build;
  }

  /**
   * Return the entity that contains the paragraph.
   *
   * @return \Drupal\Core\Entity\EntityInterface
   *   Returns the entity that holds the paragraph field.
   */
  protected function getContextEntity() {
    return $this
      ->getContextValue('entity');
  }

}

Members

Namesort descending Modifiers Type Description Overrides
BlockPluginInterface::BLOCK_LABEL_VISIBLE constant Indicates the block label (title) should be displayed to end users.
BlockPluginTrait::$transliteration protected property The transliteration service.
BlockPluginTrait::access public function
BlockPluginTrait::baseConfigurationDefaults protected function Returns generic default configuration for block plugins.
BlockPluginTrait::blockAccess protected function Indicates whether the block should be shown. 16
BlockPluginTrait::blockForm public function 16
BlockPluginTrait::blockSubmit public function 13
BlockPluginTrait::blockValidate public function 3
BlockPluginTrait::buildConfigurationForm public function Creates a generic configuration form for all block types. Individual block plugins can add elements to this form by overriding BlockBase::blockForm(). Most block plugins should not override this method unless they need to alter the generic form elements. 2
BlockPluginTrait::calculateDependencies public function
BlockPluginTrait::defaultConfiguration public function 19
BlockPluginTrait::getConfiguration public function 1
BlockPluginTrait::getMachineNameSuggestion public function 1
BlockPluginTrait::getPreviewFallbackString public function 3
BlockPluginTrait::label public function
BlockPluginTrait::setConfiguration public function
BlockPluginTrait::setConfigurationValue public function
BlockPluginTrait::setTransliteration public function Sets the transliteration service.
BlockPluginTrait::submitConfigurationForm public function Most block plugins should not override this method. To add submission handling for a specific block type, override BlockBase::blockSubmit().
BlockPluginTrait::transliteration protected function Wraps the transliteration service.
BlockPluginTrait::validateConfigurationForm public function Most block plugins should not override this method. To add validation for a specific block type, override BlockBase::blockValidate(). 1
ContextAwarePluginAssignmentTrait::addContextAssignmentElement protected function Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler protected function Wraps the context handler.
ContextAwarePluginBase::$context protected property The data objects representing the context of this plugin.
ContextAwarePluginBase::$contexts Deprecated private property Data objects representing the contexts passed in the plugin configuration.
ContextAwarePluginBase::createContextFromConfiguration protected function Overrides ContextAwarePluginBase::createContextFromConfiguration
ContextAwarePluginBase::getCacheContexts public function The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts 9
ContextAwarePluginBase::getCacheMaxAge public function The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge 7
ContextAwarePluginBase::getCacheTags public function The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags 4
ContextAwarePluginBase::getContext public function This code is identical to the Component in order to pick up a different Context class. Overrides ContextAwarePluginBase::getContext
ContextAwarePluginBase::getContextDefinition public function Overrides ContextAwarePluginBase::getContextDefinition
ContextAwarePluginBase::getContextDefinitions public function Overrides ContextAwarePluginBase::getContextDefinitions
ContextAwarePluginBase::getContextMapping public function Gets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::getContextMapping
ContextAwarePluginBase::getContexts public function Gets the defined contexts. Overrides ContextAwarePluginInterface::getContexts
ContextAwarePluginBase::getContextValue public function Gets the value for a defined context. Overrides ContextAwarePluginInterface::getContextValue
ContextAwarePluginBase::getContextValues public function Gets the values for all defined contexts. Overrides ContextAwarePluginInterface::getContextValues
ContextAwarePluginBase::setContext public function Set a context on this plugin. Overrides ContextAwarePluginBase::setContext
ContextAwarePluginBase::setContextMapping public function Sets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::setContextMapping
ContextAwarePluginBase::setContextValue public function Sets the value for a defined context. Overrides ContextAwarePluginBase::setContextValue
ContextAwarePluginBase::validateContexts public function Validates the set values for the defined contexts. Overrides ContextAwarePluginInterface::validateContexts
ContextAwarePluginBase::__get public function Implements magic __get() method.
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
ParagraphBlock::$entityManager protected property The entity type manager.
ParagraphBlock::$entityTypeId protected property The entity type id.
ParagraphBlock::$fieldDelta protected property The field delta.
ParagraphBlock::$fieldName protected property The field name.
ParagraphBlock::build public function Builds and returns the renderable array for this block plugin. Overrides BlockPluginInterface::build
ParagraphBlock::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
ParagraphBlock::getContextEntity protected function Return the entity that contains the paragraph.
ParagraphBlock::__construct public function Constructs a new ParagraphBlock. Overrides BlockPluginTrait::__construct
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginWithFormsTrait::getFormClass public function
PluginWithFormsTrait::hasFormClass public function
StringTranslationTrait::$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.
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 2
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 2