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class CountryStateWidget in Country, State and City Fields 8

Plugin implementation of the 'country_state_widget' widget.

Plugin annotation


@FieldWidget(
  id = "country_state_widget",
  label = @Translation("Country state widget"),
  field_types = {
    "country_state_type"
  }
)

Hierarchy

Expanded class hierarchy of CountryStateWidget

File

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

Namespace

Drupal\country_state_city\Plugin\Field\FieldWidget
View source 
class CountryStateWidget extends WidgetBase implements ContainerFactoryPluginInterface {

  /**
   * File storage for files.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * Construct a MyFormatter object.
   *
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   Defines an interface for entity field definitions.
   * @param array $settings
   *   The formatter settings.
   * @param array $third_party_settings
   *   Any third party settings.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
   *   Entity type manager service.
   */
  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, array $third_party_settings, EntityTypeManagerInterface $entityTypeManager) {
    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $third_party_settings);
    $this->entityTypeManager = $entityTypeManager;
  }

  /**
   * {@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'));
  }

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    return [] + parent::defaultSettings();
  }

  /**
   * Gets the initial values for the widget.
   *
   * This is a replacement for the disabled default values functionality.
   *
   * @return array
   *   The initial values, keyed by property.
   */
  protected function getInitialValues() {
    $initial_values = [
      'country' => '',
      'state' => '',
    ];
    return $initial_values;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $elements = [];
    return $elements;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    $summary = [];
    return $summary;
  }

  /**
   * {@inheritdoc}
   */
  public function getStates($country_id) {
    if ($country_id) {
      $query = $this->entityTypeManager
        ->getStorage('statelist')
        ->getQuery()
        ->condition('country_id', $country_id)
        ->sort('name', 'asc');
      $ids = $query
        ->execute();
      $states = [];
      if (count($ids) == 1) {
        $result = $this->entityTypeManager
          ->getStorage('statelist')
          ->load(key($ids));
        $states[$result
          ->id()] = $result
          ->getName();
      }
      elseif (count($ids) > 1) {
        $results = $this->entityTypeManager
          ->getStorage('statelist')
          ->loadMultiple($ids);
        foreach ($results as $result) {
          $states[$result
            ->id()] = $result
            ->getName();
        }
      }
      return $states;
    }
  }

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $item = $items[$delta];
    $value = $item
      ->getEntity()
      ->isNew() ? $this
      ->getInitialValues() : $item
      ->toArray();
    $field_name = $this->fieldDefinition
      ->getName();
    if (isset($form_state
      ->getUserInput()[$field_name][$delta])) {
      $country_id = $form_state
        ->getUserInput()[$field_name][$delta]['country'];
      $state_id = $form_state
        ->getUserInput()[$field_name][$delta]['state'];
    }
    $country_id = $country_id ?? $value['country'] ?? NULL;
    $state_id = $state_id ?? $value['state'] ?? NULL;
    $query = $this->entityTypeManager
      ->getStorage('countrylist')
      ->getQuery()
      ->sort('name', 'asc');
    $ids = $query
      ->execute();
    $countries = [];
    if (count($ids) == 1) {
      $result = $this->entityTypeManager
        ->getStorage('countrylist')
        ->load(key($ids));
      $countries[$result
        ->id()] = $result
        ->getName();
    }
    elseif (count($ids) > 1) {
      $results = $this->entityTypeManager
        ->getStorage('countrylist')
        ->loadMultiple($ids);
      foreach ($results as $result) {
        $countries[$result
          ->id()] = $result
          ->getName();
      }
    }
    $div_id = 'state-wrapper-' . $field_name . '-' . $delta;
    if ($this->fieldDefinition
      ->getFieldStorageDefinition()
      ->getCardinality() == 1) {
      $element += [
        '#type' => 'fieldset',
        '#attributes' => [
          'id' => $div_id,
        ],
      ];
    }
    $element['#attached']['library'][] = 'country_state_city/country_state_city.search_option';
    $element['country'] = [
      '#type' => 'select',
      '#options' => $countries,
      '#default_value' => $country_id,
      '#empty_option' => $this
        ->t('-- Select an option --'),
      '#required' => $this->fieldDefinition
        ->isRequired(),
      '#title' => !empty($this
        ->getFieldSetting('country_lable')) ? $this
        ->getFieldSetting('country_lable') : $this
        ->t('Country'),
      '#delta' => $delta,
      '#validated' => TRUE,
      '#attributes' => [
        'class' => [
          'csc-country-details',
        ],
      ],
      '#ajax' => [
        'callback' => [
          $this,
          'ajaxFillState',
        ],
        'event' => 'change',
        'wrapper' => $div_id,
        'progress' => [
          'type' => 'throbber',
          'message' => $this
            ->t('Searching states...'),
        ],
      ],
    ];
    if ($country_id) {
      $element['state'] = [
        '#type' => 'select',
        '#default_value' => $state_id,
        '#options' => $this
          ->getStates($country_id),
        '#empty_option' => $this
          ->t('-- Select an option --'),
        '#required' => $this->fieldDefinition
          ->isRequired(),
        '#title' => !empty($this
          ->getFieldSetting('state_lable')) ? $this
          ->getFieldSetting('state_lable') : $this
          ->t('State'),
        '#active' => FALSE,
        '#delta' => $delta,
        '#validated' => TRUE,
        '#attributes' => [
          'class' => [
            'csc-state-details',
          ],
        ],
      ];
    }
    return $element;
  }

  /**
   * Call the function that consume the webservice.
   *
   * @param array $form
   *   A form that be modified.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The values of the form.
   *
   * @return array
   *   The form modified
   */
  public function ajaxFillState(array $form, FormStateInterface $form_state) {
    $element = $form_state
      ->getTriggeringElement();
    $delta = $element['#delta'];
    $field_name = $this->fieldDefinition
      ->getName();
    $form = $form[$field_name];
    unset($form['widget'][$delta]['_weight']);
    return $form['widget'][$delta];
  }

}

Members

Namesort descending 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.
CountryStateWidget::$entityTypeManager protected property File storage for files.
CountryStateWidget::ajaxFillState public function Call the function that consume the webservice.
CountryStateWidget::create public static function Creates an instance of the plugin. Overrides WidgetBase::create
CountryStateWidget::defaultSettings public static function Defines the default settings for this plugin. Overrides PluginSettingsBase::defaultSettings
CountryStateWidget::formElement public function Returns the form for a single field widget. Overrides WidgetInterface::formElement
CountryStateWidget::getInitialValues protected function Gets the initial values for the widget.
CountryStateWidget::getStates public function
CountryStateWidget::settingsForm public function Returns a form to configure settings for the widget. Overrides WidgetBase::settingsForm
CountryStateWidget::settingsSummary public function Returns a short summary for the current widget settings. Overrides WidgetBase::settingsSummary
CountryStateWidget::__construct public function Construct a MyFormatter object. Overrides WidgetBase::__construct
DependencySerializationTrait::$_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 $settings.
PluginSettingsBase::onDependencyRemoval public function Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval 3
PluginSettingsBase::setSetting public function Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings public function Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting public function Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting public function Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
StringTranslationTrait::$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::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::setWidgetState public static function Stores processing information about the widget in $form_state. Overrides WidgetBaseInterface::setWidgetState