class DataListItemAdd

Provides an 'Add list item' action.

@todo Add access callback information from Drupal 7?

Plugin annotation

@RulesAction(
  id = "rules_list_item_add",
  label = @Translation("Add list item"),
  category = @Translation("Data"),
  context_definitions = {
    "list" = @ContextDefinition("list",
      label = @Translation("List"),
      description = @Translation("The data list, to which an item is to be added."),
      assignment_restriction = "selector"
    ),
    "item" = @ContextDefinition("any",
      label = @Translation("Item"),
      description = @Translation("Item to add.")
    ),
    "unique" = @ContextDefinition("boolean",
      label = @Translation("Enforce uniqueness"),
      description = @Translation("Only add the item to the list if it is not yet contained."),
      options_provider = "\Drupal\rules\TypedData\Options\YesNoOptions",
      default_value = FALSE,
      required = FALSE
    ),
    "position" = @ContextDefinition("string",
      label = @Translation("Insert position"),
      description = @Translation("Position to insert the item."),
      options_provider = "\Drupal\rules\TypedData\Options\ListPositionOptions",
      default_value = "end",
      required = FALSE
    ),
  }
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait implements \Drupal\Component\Plugin\PluginBase
    • class \Drupal\rules\Core\RulesActionBase extends \Drupal\rules\Core\RulesActionInterface uses \Drupal\Core\Plugin\ContextAwarePluginTrait, \Drupal\rules\Context\ContextProviderTrait, \Drupal\rules\Core\ExecutablePluginTrait, \Drupal\rules\Core\ConfigurationAccessControlTrait implements \Drupal\Core\Plugin\PluginBase
      • class \Drupal\rules\Plugin\RulesAction\DataListItemAdd implements \Drupal\rules\Core\RulesActionBase

Expanded class hierarchy of DataListItemAdd

File

src/Plugin/RulesAction/DataListItemAdd.php, line 43

Namespace

class DataListItemAdd extends RulesActionBase {
  
  /**
   * Add an item to a list.
   *
   * @param array $list
   *   A list to which an item is added.
   * @param mixed $item
   *   An item being added to the list.
   * @param bool $unique
   *   (optional) Whether or not we can add duplicate items.
   * @param string $position
   *   (optional) Determines if item will be added at beginning or end.
   *   Allowed values:
   *   - "start": Add to beginning of the list.
   *   - "end": Add to end of the list.
   */
  protected function doExecute(array $list, $item, $unique = FALSE, $position = 'end') {
    // Optionally, only add the list item if it is not yet contained.
    if (!((bool) $unique && in_array($item, $list))) {
      if ($position === 'start') {
        array_unshift($list, $item);
      }
      else {
        $list[] = $item;
      }
    }
    $this->setContextValue('list', $list);
  }

}

Members