class ReferenceWidget in Select (or other) 8

Same name and namespace in other branches

4.x src/Plugin/Field/FieldWidget/ReferenceWidget.php \Drupal\select_or_other\Plugin\Field\FieldWidget\ReferenceWidget

Plugin implementation of the 'select_or_other_reference' widget.

Plugin annotation


@FieldWidget(
  id = "select_or_other_reference",
  label = @Translation("Select or Other"),
  field_types = {
    "entity_reference"
  },
  multiple_values = TRUE
)

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\WidgetBase implements WidgetInterface, ContainerFactoryPluginInterface uses AllowedTagsXssTrait
    class \Drupal\select_or_other\Plugin\Field\FieldWidget\WidgetBase
    class \Drupal\select_or_other\Plugin\Field\FieldWidget\ReferenceWidget implements ContainerFactoryPluginInterface

Expanded class hierarchy of ReferenceWidget

1 file declares its use of ReferenceWidget

ReferenceWidgetTest.php in tests/src/Unit/ReferenceWidgetTest.php

File

src/Plugin/Field/FieldWidget/ReferenceWidget.php, line 30

Namespace

Drupal\select_or_other\Plugin\Field\FieldWidget

View source

class ReferenceWidget extends WidgetBase implements ContainerFactoryPluginInterface {

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

  /**
   * The bundle info service.
   *
   * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
   */
  protected $bundleInfoService;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($plugin_id, $plugin_definition, $configuration['field_definition'], $configuration['settings'], $configuration['third_party_settings'], $container
      ->get('entity_type.manager'), $container
      ->get('entity_type.bundle.info'));
  }

  /**
   * Constructs a ReferenceWidget object.
   */
  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, array $third_party_settings, EntityTypeManagerInterface $entity_type = NULL, EntityTypeBundleInfoInterface $bundle_info_service = NULL) {
    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $third_party_settings);
    $this->entityTypeManager = $entity_type;
    $this->bundleInfoService = $bundle_info_service;
  }

  /**
   * Helper method which prepares element values for validation.
   *
   * EntityAutocomplete::validateEntityAutocomplete expects a string when
   * validating taxonomy terms.
   *
   * @param array $element
   *   The element to prepare.
   */
  protected static function prepareElementValuesForValidation(array &$element) {
    if ($element['#tags']) {
      $element['#value'] = Tags::implode($element['#value']);
    }
  }

  /**
   * Retrieves the entityStorage object.
   *
   * @return \Drupal\Core\Entity\EntityStorageInterface
   *   EntityStorage for entity types that can be referenced by this widget.
   *
   * @codeCoverageIgnore
   *   Ignore this method because if ::getFieldSetting() or entityTypeManager
   *   does not return the expected result, we have other problems on our hands.
   */
  protected function getEntityStorage() {
    $target_type = $this
      ->getFieldSetting('target_type');
    return $this->entityTypeManager
      ->getStorage($target_type);
  }

  /**
   * Retrieves the key used to indicate a bundle for the entity type.
   *
   * @return string
   *   The key used to indicate a bundle for the entity type referenced by this
   *   widget's field.
   *
   * @codeCoverageIgnore
   *   Ignore this method because if any of the called core functions does not
   *   return the expected result, we've got other problems on our hands.
   */
  protected function getBundleKey() {
    $entity_keys = $this
      ->getEntityStorage()
      ->getEntityType()
      ->get('entity_keys');
    return $entity_keys['bundle'];
  }

  /**
   * {@inheritdoc}
   */
  protected function getOptions(FieldableEntityInterface $entity = NULL) {
    $options = [];

    // Prepare properties to use for loading.
    $entity_storage = $this
      ->getEntityStorage();
    $bundle_key = $this
      ->getBundleKey();
    $target_bundles = $this
      ->getSelectionHandlerSetting('target_bundles');
    $properties = [
      $bundle_key => $target_bundles,
    ];
    $entities = $entity_storage
      ->loadByProperties($properties);

    // Prepare the options.
    foreach ($entities as $entity) {
      $options["{$entity->label()} ({$entity->id()})"] = $entity
        ->label();
    }
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  protected function prepareSelectedOptions(array $options) {
    $prepared_options = [];
    $entities = $this
      ->getEntityStorage()
      ->loadMultiple($options);
    foreach ($entities as $entity) {
      $prepared_options[] = "{$entity->label()} ({$entity->id()})";
    }
    return $prepared_options;
  }

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $element = parent::formElement($items, $delta, $element, $form, $form_state);
    $entity = $items
      ->getEntity();
    $element = $element + [
      '#target_type' => $this
        ->getFieldSetting('target_type'),
      '#selection_handler' => $this
        ->getFieldSetting('handler'),
      '#selection_settings' => $this
        ->getFieldSetting('handler_settings'),
      '#autocreate' => [
        'bundle' => $this
          ->getAutocreateBundle(),
        'uid' => $entity instanceof EntityOwnerInterface ? $entity
          ->getOwnerId() : \Drupal::currentUser()
          ->id(),
      ],
      '#validate_reference' => TRUE,
      '#tags' => $this
        ->getFieldSetting('target_type') === 'taxonomy_term',
      '#merged_values' => TRUE,
    ];
    $element['#element_validate'] = [
      [
        get_class($this),
        'validateReferenceWidget',
      ],
    ];
    return $element;
  }

  /**
   * Returns the value of a setting for the entity reference selection handler.
   *
   * @todo This is shamelessly copied from EntityAutocomplete. We should
   * probably file a core issue to turn this into a trait. The same goes for
   * $this::getAutoCreateBundle()
   *
   * @param string $setting_name
   *   The setting name.
   *
   * @return mixed
   *   The setting value.
   *
   * @codeCoverageIgnore
   *   Ignore this function because it is a straight copy->paste.
   */
  protected function getSelectionHandlerSetting($setting_name) {
    $settings = $this
      ->getFieldSetting('handler_settings');
    return isset($settings[$setting_name]) ? $settings[$setting_name] : NULL;
  }

  /**
   * Returns the name of the bundle which will be used for autocreated entities.
   *
   * @todo This is shamelessly copied from EntityAutocomplete. We should
   * probably file a core issue to turn this into a trait. The same goes for
   * $this::getSelectionHandlerSetting()
   *
   * @return string
   *   The bundle name.
   *
   * @codeCoverageIgnore
   *   Ignore this function because it is a straight copy->paste.
   */
  protected function getAutocreateBundle() {
    $bundle = NULL;
    if ($this
      ->getSelectionHandlerSetting('auto_create')) {

      // If the 'target_bundles' setting is restricted to a single choice, we
      // can use that.
      if (($target_bundles = $this
        ->getSelectionHandlerSetting('target_bundles')) && count($target_bundles) == 1) {
        $bundle = reset($target_bundles);
      }
      else {

        // @todo Expose a proper UI for choosing the bundle for autocreated
        // entities in https://www.drupal.org/node/2412569.
        $bundles = $this->bundleInfoService
          ->getBundleInfo($this
          ->getFieldSetting('target_type'));
        $bundle = key($bundles);
      }
    }
    return $bundle;
  }

  /**
   * Form element validation handler for select_or_other_reference elements.
   *
   * @codeCoverageIgnore
   *   Ignore
   */
  public static function validateReferenceWidget(array &$element, FormStateInterface $form_state, array &$complete_form) {
    self::prepareElementValuesForValidation($element);
    if (!empty($element['#value'])) {
      EntityAutocomplete::validateEntityAutocomplete($element, $form_state, $complete_form);
    }
  }

  /**
   * {@inheritdoc}
   */
  public static function isApplicable(FieldDefinitionInterface $field_definition) {
    $options = $field_definition
      ->getSettings();
    $handler_settings = isset($options['handler_settings']) ? $options['handler_settings'] : NULL;
    $handler = \Drupal::service('plugin.manager.entity_reference_selection')
      ->getInstance($options);
    return $handler instanceof SelectionWithAutocreateInterface && isset($handler_settings['auto_create']) && $handler_settings['auto_create'];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AllowedTagsXssTrait::allowedTags	public	function	Returns a list of tags allowed by AllowedTagsXssTrait::fieldFilterXss().
AllowedTagsXssTrait::displayAllowedTags	public	function	Returns a human-readable list of allowed tags for display in help texts.
AllowedTagsXssTrait::fieldFilterXss	public	function	Filters an HTML string to prevent XSS vulnerabilities.
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::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$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::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 $settings.
PluginSettingsBase::onDependencyRemoval	public	function	Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval	3
PluginSettingsBase::setSetting	public	function	Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings	public	function	Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting	public	function	Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting	public	function	Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
ReferenceWidget::$bundleInfoService	protected	property	The bundle info service.
ReferenceWidget::$entityTypeManager	protected	property	The entity type manager.
ReferenceWidget::create	public static	function	Creates an instance of the plugin. Overrides WidgetBase::create
ReferenceWidget::formElement	public	function	Returns the form for a single field widget. Overrides WidgetBase::formElement
ReferenceWidget::getAutocreateBundle	protected	function	Returns the name of the bundle which will be used for autocreated entities.
ReferenceWidget::getBundleKey	protected	function	Retrieves the key used to indicate a bundle for the entity type.
ReferenceWidget::getEntityStorage	protected	function	Retrieves the entityStorage object.
ReferenceWidget::getOptions	protected	function	Returns the array of options for the widget. Overrides WidgetBase::getOptions
ReferenceWidget::getSelectionHandlerSetting	protected	function	Returns the value of a setting for the entity reference selection handler.
ReferenceWidget::isApplicable	public static	function	Returns if the widget can be used for the provided field. Overrides WidgetBase::isApplicable
ReferenceWidget::prepareElementValuesForValidation	protected static	function	Helper method which prepares element values for validation.
ReferenceWidget::prepareSelectedOptions	protected	function	Prepares selected options for comparison to the available options. Overrides WidgetBase::prepareSelectedOptions
ReferenceWidget::validateReferenceWidget	public static	function	Form element validation handler for select_or_other_reference elements.
ReferenceWidget::__construct	public	function	Constructs a ReferenceWidget object. Overrides WidgetBase::__construct
StringTranslationTrait::$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.
WidgetBase::$fieldDefinition	protected	property	The field definition.
WidgetBase::$settings	protected	property	The widget settings. Overrides PluginSettingsBase::$settings
WidgetBase::addMoreAjax	public static	function	Ajax callback for the "Add another item" button.
WidgetBase::addMoreSubmit	public static	function	Submission handler for the "Add another item" button.
WidgetBase::afterBuild	public static	function	After-build handler for field elements in a form.
WidgetBase::defaultSettings	public static	function	@codeCoverageIgnore Ignore this method because we would be testing if a hard coded array is equal to another hard coded array. Overrides PluginSettingsBase::defaultSettings	1
WidgetBase::errorElement	public	function	Assigns a field-level validation error to the right widget sub-element. Overrides WidgetInterface::errorElement	8
WidgetBase::extractFormValues	public	function	Extracts field values from submitted form values. Overrides WidgetBaseInterface::extractFormValues	2
WidgetBase::flagErrors	public	function	Reports field-level validation errors against actual form elements. Overrides WidgetBaseInterface::flagErrors	2
WidgetBase::flattenOptions	protected	function	Flattens an array of allowed values.
WidgetBase::form	public	function	Creates a form element for a field. Overrides WidgetBaseInterface::form	3
WidgetBase::formMultipleElements	protected	function	Special handling to create form elements for multiple values.	1
WidgetBase::formSingleElement	protected	function	Generates the form element for a single copy of the widget.
WidgetBase::getAvailableSortOptions	private	function	Returns the available sorting options.
WidgetBase::getColumn	protected	function	Helper method to determine the identifying column for the field.
WidgetBase::getFieldSetting	protected	function	Returns the value of a field setting.
WidgetBase::getFieldSettings	protected	function	Returns the array of field settings.
WidgetBase::getFilteredDescription	protected	function	Returns the filtered field description.
WidgetBase::getSelectedOptions	protected	function	Determines selected options from the incoming field values.
WidgetBase::getWidgetState	public static	function	Retrieves processing information about the widget from $form_state. Overrides WidgetBaseInterface::getWidgetState
WidgetBase::getWidgetStateParents	protected static	function	Returns the location of processing information within $form_state.
WidgetBase::handlesMultipleValues	protected	function	Returns whether the widget handles multiple values.
WidgetBase::isDefaultValueWidget	protected	function	Returns whether the widget used for default value form.
WidgetBase::isMultiple	protected	function	Helper method to determine if the field supports multiple values.
WidgetBase::isRequired	protected	function	Helper method to determine if the field is required.
WidgetBase::massageFormValues	public	function	Massages the form values into the format expected for field values. Overrides WidgetInterface::massageFormValues	7
WidgetBase::selectElementTypeOptions	private	function	Returns the types of select elements available for selection.
WidgetBase::settingsForm	public	function	Returns a form to configure settings for the widget. Overrides WidgetBase::settingsForm	1
WidgetBase::settingsSummary	public	function	Returns a short summary for the current widget settings. Overrides WidgetBase::settingsSummary
WidgetBase::setWidgetState	public static	function	Stores processing information about the widget in $form_state. Overrides WidgetBaseInterface::setWidgetState
WidgetBase::sortOptions	private	function	Adds the available options to the select or other element.
WidgetBase::supportsGroups	protected	function	Indicates whether the widgets support optgroups.

You are here

class ReferenceWidget in Select (or other) 8

Plugin annotation

Hierarchy

File

Namespace

Members

API Navigation