class MultiselectWidget in Multiselect 2.x

Same name and namespace in other branches

8 src/Plugin/Field/FieldWidget/MultiselectWidget.php \Drupal\multiselect\Plugin\Field\FieldWidget\MultiselectWidget

Plugin implementation of the 'multiselect' widget.

Plugin annotation


@FieldWidget(
  id = "multiselect",
  label = @Translation("Multiselect"),
  field_types = {
    "list_string",
    "list_float",
    "list_integer",
    "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
    class \Drupal\Core\Field\Plugin\Field\FieldWidget\OptionsWidgetBase
    class \Drupal\multiselect\Plugin\Field\FieldWidget\MultiselectWidget

Expanded class hierarchy of MultiselectWidget

File

src/Plugin/Field/FieldWidget/MultiselectWidget.php, line 24

Namespace

Drupal\multiselect\Plugin\Field\FieldWidget

View source

class MultiselectWidget extends OptionsWidgetBase {

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {

    /** @var \Drupal\multiselect\Element\Multiselect $element */
    $element = parent::formElement($items, $delta, $element, $form, $form_state);

    // Prepare some properties for the child methods to build the actual form
    // element.
    $this->required = $element['#required'];
    $this->multiple = $this->fieldDefinition
      ->getFieldStorageDefinition()
      ->isMultiple();
    $this->has_value = isset($items[0]->{$this->column});
    $element += [
      '#type' => 'multiselect',
      '#name' => $items
        ->getName(),
      '#size' => $this
        ->getSetting('size'),
      '#options' => $this
        ->getOptions($items
        ->getEntity()),
      '#default_value' => $this
        ->getSelectedOptions($items, $delta),
      // Do not display a 'multiple' select box if there is only one option.
      '#multiple' => $this->multiple && count($this->options) > 1,
    ];
    return $element;
  }

  /**
   * Form validation handler for widget elements.
   *
   * @param array $element
   *   The form element.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state.
   */
  public static function validateElement(array $element, FormStateInterface $form_state) {

    // @todo fix multiselect validation.
    parent::validateElement($element, $form_state);

    // Massage submitted form values.
    // Drupal\Core\Field\WidgetBase::submit() expects values as
    // an array of values keyed by delta first, then by column, while our
    // widgets return the opposite.
    if (is_array($element['#value'])) {
      $values = array_values($element['#value']);
    }
    else {
      $values = [
        $element['#value'],
      ];
    }

    // Filter out the 'none' option. Use a strict comparison, because
    // 0 == 'any string'.
    $index = array_search('_none', $values, TRUE);
    if ($index !== FALSE) {
      unset($values[$index]);
    }

    // Transpose selections from field => delta to delta => field.
    $items = [];
    foreach ($values as $value) {
      $items[] = [
        $element['#key_column'] => $value,
      ];
    }
    $form_state
      ->setValueForElement($element, $items);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__sleep	public	function		2
DependencySerializationTrait::__wakeup	public	function		2
MessengerTrait::$messenger	protected	property	The messenger.	27
MessengerTrait::messenger	public	function	Gets the messenger.	27
MessengerTrait::setMessenger	public	function	Sets the messenger.
MultiselectWidget::formElement	public	function	Returns the form for a single field widget. Overrides OptionsWidgetBase::formElement
MultiselectWidget::validateElement	public static	function	Form validation handler for widget elements. Overrides OptionsWidgetBase::validateElement
OptionsWidgetBase::$column	protected	property	Abstract over the actual field columns, to allow different field types to reuse those widgets.
OptionsWidgetBase::getEmptyLabel	protected	function	Returns the empty option label to add to the list of options, if any.	2
OptionsWidgetBase::getOptions	protected	function	Returns the array of options for the widget.
OptionsWidgetBase::getSelectedOptions	protected	function	Determines selected options from the incoming field values.
OptionsWidgetBase::sanitizeLabel	protected	function	Sanitizes a string label to display as an option.	1
OptionsWidgetBase::supportsGroups	protected	function	Indicates whether the widgets support optgroups.	1
OptionsWidgetBase::__construct	public	function	Constructs a WidgetBase object. Overrides WidgetBase::__construct	1
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	2
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
PluginSettingsBase::$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 $settings.
PluginSettingsBase::onDependencyRemoval	public	function	Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval	3
PluginSettingsBase::setSetting	public	function	Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings	public	function	Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting	public	function	Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting	public	function	Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	4
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::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create	5
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::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::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::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::isApplicable	public static	function	Returns if the widget can be used for the provided field. Overrides WidgetInterface::isApplicable	4
WidgetBase::isDefaultValueWidget	protected	function	Returns whether the widget used for default value form.
WidgetBase::massageFormValues	public	function	Massages the form values into the format expected for field values. Overrides WidgetInterface::massageFormValues	7
WidgetBase::settingsForm	public	function	Returns a form to configure settings for the widget. Overrides WidgetInterface::settingsForm	16
WidgetBase::settingsSummary	public	function	Returns a short summary for the current widget settings. Overrides WidgetInterface::settingsSummary	15
WidgetBase::setWidgetState	public static	function	Stores processing information about the widget in $form_state. Overrides WidgetBaseInterface::setWidgetState

You are here

class MultiselectWidget in Multiselect 2.x

Plugin annotation

Hierarchy

File

Namespace

Members

API Navigation