class EntityAutocomplete in Open Social 8

Provides an entity autocomplete form element.

The #default_value accepted by this element is either an entity object or an array of entity objects.

Plugin annotation

@FormElement("entity_autocomplete");

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
      • class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
        • class \Drupal\Core\Render\Element\Textfield
          • class \Drupal\Core\Entity\Element\EntityAutocomplete
            • class \Drupal\social_core\Entity\Element\EntityAutocomplete

File

modules/social_features/social_core/src/Entity/Element/EntityAutocomplete.php, line 18

Namespace

Drupal\social_core\Entity\Element

class EntityAutocomplete extends EntityAutocompleteBase {

  /**
   * {@inheritdoc}
   */
  public static function getEntityLabels(array $entities, $hide_id = FALSE) {
    $entity_labels = [];
    foreach ($entities as $entity) {

      // Use the special view label, since some entities allow the label to be
      // viewed, even if the entity is not allowed to be viewed.
      $label = $entity
        ->access('view label') ? $entity
        ->label() : t('- Restricted access -');

      // Take into account "autocreated" entities.
      if (!$entity
        ->isNew() && !$hide_id) {
        $label .= ' (' . $entity
          ->id() . ')';
      }

      // Labels containing commas or quotes must be wrapped in quotes.
      $entity_labels[] = Tags::encode($label);
    }
    return implode(', ', $entity_labels);
  }

  /**
   * {@inheritdoc}
   */
  public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
    $hide_id = !empty($element['#selection_settings']['hide_id']);

    // Process the #default_value property.
    if ($input === FALSE && isset($element['#default_value']) && $element['#process_default_value']) {
      if (is_array($element['#default_value']) && $element['#tags'] !== TRUE) {
        throw new \InvalidArgumentException('The #default_value property is an array but the form element does not allow multiple values.');
      }
      elseif (!empty($element['#default_value']) && !is_array($element['#default_value'])) {

        // Convert the default value into an array for easier processing in
        // static::getEntityLabels().
        $element['#default_value'] = [
          $element['#default_value'],
        ];
      }
      if ($element['#default_value']) {
        if (!reset($element['#default_value']) instanceof EntityInterface) {
          throw new \InvalidArgumentException('The #default_value property has to be an entity object or an array of entity objects.');
        }

        // Extract the labels from the passed-in entity objects, taking access
        // checks into account.
        return static::getEntityLabels($element['#default_value'], $hide_id);
      }
    }

    // Potentially the #value is set directly, so it contains the 'target_id'
    // array structure instead of a string.
    if ($input !== FALSE && is_array($input)) {
      $entity_ids = array_map(function (array $item) {
        return $item['target_id'];
      }, $input);
      $entities = \Drupal::entityTypeManager()
        ->getStorage($element['#target_type'])
        ->loadMultiple($entity_ids);
      return static::getEntityLabels($entities, $hide_id);
    }
  }

}

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
EntityAutocomplete::extractEntityIdFromAutocompleteInput	public static	function	Extracts the entity ID from the autocompletion result.
EntityAutocomplete::getEntityLabels	public static	function	Converts an array of entity objects into a string of entity labels. Overrides EntityAutocomplete::getEntityLabels
EntityAutocomplete::getInfo	public	function	Returns the element properties for this element. Overrides Textfield::getInfo
EntityAutocomplete::matchEntityByTitle	protected static	function	Finds an entity from an autocomplete input without an explicit ID.
EntityAutocomplete::processEntityAutocomplete	public static	function	Adds entity autocomplete functionality to a form element.
EntityAutocomplete::validateEntityAutocomplete	public static	function	Form element validation handler for entity_autocomplete elements.
EntityAutocomplete::valueCallback	public static	function	Determines how user input is mapped to an element's #value property. Overrides EntityAutocomplete::valueCallback
FormElement::processAutocomplete	public static	function	Adds autocomplete functionality to elements.
FormElement::processPattern	public static	function	#process callback for #pattern form element property.
FormElement::validatePattern	public static	function	#element_validate callback for #pattern form element property.
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.
PluginBase::__construct	public	function	Constructs a \Drupal\Component\Plugin\PluginBase object.	92
RenderElement::preRenderAjaxForm	public static	function	Adds Ajax information about an element to communicate with JavaScript.
RenderElement::preRenderGroup	public static	function	Adds members of this group as actual elements for rendering.
RenderElement::processAjaxForm	public static	function	Form element processing handler for the #ajax form property.	1
RenderElement::processGroup	public static	function	Arranges elements into groups.
RenderElement::setAttributes	public static	function	Sets a form element's class attribute. Overrides ElementInterface::setAttributes
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.
Textfield::preRenderTextfield	public static	function	Prepares a #type 'textfield' render element for input.html.twig.