class ListWidget in Select (or other) 4.x

Same name and namespace in other branches

8 src/Plugin/Field/FieldWidget/ListWidget.php \Drupal\select_or_other\Plugin\Field\FieldWidget\ListWidget

Plugin implementation of the 'select_or_other_list' widget.

Plugin annotation


@FieldWidget(
  id = "select_or_other_list",
  label = @Translation("Select or Other"),
  field_types = {
    "list_integer",
    "list_float",
    "list_string"
  },
  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\select_or_other\Plugin\Field\FieldWidget\WidgetBase
    class \Drupal\select_or_other\Plugin\Field\FieldWidget\ListWidget

Expanded class hierarchy of ListWidget

1 file declares its use of ListWidget

ListWidgetTest.php in tests/src/Unit/ListWidgetTest.php

File

src/Plugin/Field/FieldWidget/ListWidget.php, line 23

Namespace

Drupal\select_or_other\Plugin\Field\FieldWidget

View source

class ListWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    return [
      'add_other_value_to_allowed_values' => TRUE,
    ] + parent::defaultSettings();
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $form = parent::settingsForm($form, $form_state);
    $form['add_other_value_to_allowed_values'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Add entered values from the other field to the allowed values list.'),
      '#default_value' => $this
        ->getSetting('add_other_value_to_allowed_values'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  protected function getOptions(FieldableEntityInterface $entity = NULL) {
    $options = [];
    if ($entity) {
      $options = $this->fieldDefinition
        ->getFieldStorageDefinition()
        ->getOptionsProvider($this
        ->getColumn(), $entity)
        ->getSettableOptions(\Drupal::currentUser());
    }
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $element = parent::formElement($items, $delta, $element, $form, $form_state);
    if (!$this
      ->getSetting('add_other_value_to_allowed_values')) {

      // Add original options to the element.
      $element['#original_options'] = $element['#options'];

      // Add selected "Other" values to the element.
      $element['#other_options'] = [];
      $values = $items
        ->getValue();
      if (!empty($values)) {
        foreach ($values as $value) {

          // Set value only if value exists and is not a default option.
          if (isset($value['value']) && !isset($element['#options'][$value['value']])) {
            $element['#other_options'][] = $value['value'];
          }
        }
      }
    }
    $element = $element + [
      '#merged_values' => TRUE,
    ];
    return $element;
  }
  public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
    unset($values['select']);
    unset($values['other']);
    if ($this
      ->getSetting('add_other_value_to_allowed_values')) {
      $new_values = $this
        ->extractNewValues($values);
      if (!empty($new_values)) {
        $this
          ->addNewValuesToAllowedValues($new_values);
      }
    }
    return parent::massageFormValues($values, $form, $form_state);
  }

  /**
   * Extract unknown values found in the values array.
   *
   * @param array $values
   *   The values.
   *
   * @return array
   *   Any unknown values found in the values array.
   */
  protected function extractNewValues(array $values) {
    $allowed_values = $this->fieldDefinition
      ->getSetting('allowed_values');
    $new_values = [];
    foreach ($values as $value) {
      if (!empty($value) && !isset($allowed_values[$value])) {
        $new_values[] = $value;
      }
    }
    return $new_values;
  }

  /**
   * Adds new values to the allowed values for this field.
   *
   * @param array $values_to_add
   *   The values to add to the allowed values.
   */
  protected function addNewValuesToAllowedValues(array $values_to_add) {
    $entity_type = $this->fieldDefinition
      ->getTargetEntityTypeId();
    $field_name = $this->fieldDefinition
      ->getName();

    /** @var \Drupal\field\FieldStorageConfigInterface $storage */
    $storage = \Drupal::entityTypeManager()
      ->getStorage('field_storage_config')
      ->load("{$entity_type}.{$field_name}");
    $allowed_values = $storage
      ->getSetting('allowed_values');
    foreach ($values_to_add as $value) {
      if (!isset($allowed_values[$value])) {
        $allowed_values[$value] = $value;
      }
    }
    if ($allowed_values !== $storage
      ->getSetting('allowed_values')) {
      $storage
        ->setSetting('allowed_values', $allowed_values)
        ->save();
      drupal_static_reset('options_allowed_values');
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__sleep	public	function		2
DependencySerializationTrait::__wakeup	public	function		2
ListWidget::addNewValuesToAllowedValues	protected	function	Adds new values to the allowed values for this field.
ListWidget::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 WidgetBase::defaultSettings
ListWidget::extractNewValues	protected	function	Extract unknown values found in the values array.
ListWidget::formElement	public	function	Returns the form for a single field widget. Overrides WidgetBase::formElement
ListWidget::getOptions	protected	function	Returns the array of options for the widget. Overrides WidgetBase::getOptions
ListWidget::massageFormValues	public	function	Massages the form values into the format expected for field values. Overrides WidgetBase::massageFormValues
ListWidget::settingsForm	public	function	Returns a form to configure settings for the widget. Overrides WidgetBase::settingsForm
MessengerTrait::$messenger	protected	property	The messenger.	27
MessengerTrait::messenger	public	function	Gets the messenger.	27
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$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	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::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::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::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::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::prepareSelectedOptions	protected	function	Prepares selected options for comparison to the available options.	1
WidgetBase::selectElementTypeOptions	private	function	Returns the types of select elements available for selection.
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.
WidgetBase::__construct	public	function	Constructs a WidgetBase object. Overrides PluginBase::__construct	5

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class ListWidget in Select (or other) 4.x

Plugin annotation

Hierarchy

File

Namespace

Members

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