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class DataFieldRow in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/rest/src/Plugin/views/row/DataFieldRow.php \Drupal\rest\Plugin\views\row\DataFieldRow

Plugin which displays fields as raw data.

Plugin annotation


@ViewsRow(
  id = "data_field",
  title = @Translation("Fields"),
  help = @Translation("Use fields as row data."),
  display_types = {"data"}
)

Hierarchy

Expanded class hierarchy of DataFieldRow

Related topics

Views row plugins
Plugins that control how Views outputs an individual record.

File

core/modules/rest/src/Plugin/views/row/DataFieldRow.php, line 22

Namespace

Drupal\rest\Plugin\views\row
View source 
class DataFieldRow extends RowPluginBase {

  /**
   * {@inheritdoc}
   */
  protected $usesFields = TRUE;

  /**
   * Stores an array of prepared field aliases from options.
   *
   * @var array
   */
  protected $replacementAliases = [];

  /**
   * Stores an array of options to determine if the raw field output is used.
   *
   * @var array
   */
  protected $rawOutputOptions = [];

  /**
   * {@inheritdoc}
   */
  public function init(ViewExecutable $view, DisplayPluginBase $display, array &$options = NULL) {
    parent::init($view, $display, $options);
    if (!empty($this->options['field_options'])) {
      $options = (array) $this->options['field_options'];

      // Prepare a trimmed version of replacement aliases.
      $aliases = static::extractFromOptionsArray('alias', $options);
      $this->replacementAliases = array_filter(array_map('trim', $aliases));

      // Prepare an array of raw output field options.
      $this->rawOutputOptions = static::extractFromOptionsArray('raw_output', $options);
    }
  }

  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['field_options'] = [
      'default' => [],
    ];
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    $form['field_options'] = [
      '#type' => 'table',
      '#header' => [
        $this
          ->t('Field'),
        $this
          ->t('Alias'),
        $this
          ->t('Raw output'),
      ],
      '#empty' => $this
        ->t('You have no fields. Add some to your view.'),
      '#tree' => TRUE,
    ];
    $options = $this->options['field_options'];
    if ($fields = $this->view->display_handler
      ->getOption('fields')) {
      foreach ($fields as $id => $field) {

        // Don't show the field if it has been excluded.
        if (!empty($field['exclude'])) {
          continue;
        }
        $form['field_options'][$id]['field'] = [
          '#markup' => $id,
        ];
        $form['field_options'][$id]['alias'] = [
          '#title' => $this
            ->t('Alias for @id', [
            '@id' => $id,
          ]),
          '#title_display' => 'invisible',
          '#type' => 'textfield',
          '#default_value' => isset($options[$id]['alias']) ? $options[$id]['alias'] : '',
          '#element_validate' => [
            [
              $this,
              'validateAliasName',
            ],
          ],
        ];
        $form['field_options'][$id]['raw_output'] = [
          '#title' => $this
            ->t('Raw output for @id', [
            '@id' => $id,
          ]),
          '#title_display' => 'invisible',
          '#type' => 'checkbox',
          '#default_value' => isset($options[$id]['raw_output']) ? $options[$id]['raw_output'] : '',
        ];
      }
    }
  }

  /**
   * Form element validation handler for \Drupal\rest\Plugin\views\row\DataFieldRow::buildOptionsForm().
   */
  public function validateAliasName($element, FormStateInterface $form_state) {
    if (preg_match('@[^A-Za-z0-9_-]+@', $element['#value'])) {
      $form_state
        ->setError($element, $this
        ->t('The machine-readable name must contain only letters, numbers, dashes and underscores.'));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function validateOptionsForm(&$form, FormStateInterface $form_state) {

    // Collect an array of aliases to validate.
    $aliases = static::extractFromOptionsArray('alias', $form_state
      ->getValue([
      'row_options',
      'field_options',
    ]));

    // If array filter returns empty, no values have been entered. Unique keys
    // should only be validated if we have some.
    if (($filtered = array_filter($aliases)) && array_unique($filtered) !== $filtered) {
      $form_state
        ->setErrorByName('aliases', $this
        ->t('All field aliases must be unique'));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function render($row) {
    $output = [];
    foreach ($this->view->field as $id => $field) {

      // If the raw output option has been set, just get the raw value.
      if (!empty($this->rawOutputOptions[$id])) {
        $value = $field
          ->getValue($row);
      }
      else {

        // Advanced render for token replacement.
        $markup = $field
          ->advancedRender($row);

        // Post render to support uncacheable fields.
        $field
          ->postRender($row, $markup);
        $value = $field->last_render;
      }

      // Omit excluded fields from the rendered output.
      if (empty($field->options['exclude'])) {
        $output[$this
          ->getFieldKeyAlias($id)] = $value;
      }
    }
    return $output;
  }

  /**
   * Return an alias for a field ID, as set in the options form.
   *
   * @param string $id
   *   The field id to lookup an alias for.
   *
   * @return string
   *   The matches user entered alias, or the original ID if nothing is found.
   */
  public function getFieldKeyAlias($id) {
    if (isset($this->replacementAliases[$id])) {
      return $this->replacementAliases[$id];
    }
    return $id;
  }

  /**
   * Extracts a set of option values from a nested options array.
   *
   * @param string $key
   *   The key to extract from each array item.
   * @param array $options
   *   The options array to return values from.
   *
   * @return array
   *   A regular one dimensional array of values.
   */
  protected static function extractFromOptionsArray($key, $options) {
    return array_map(function ($item) use ($key) {
      return isset($item[$key]) ? $item[$key] : NULL;
    }, $options);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DataFieldRow::$rawOutputOptions protected property Stores an array of options to determine if the raw field output is used.
DataFieldRow::$replacementAliases protected property Stores an array of prepared field aliases from options.
DataFieldRow::$usesFields protected property Does the row plugin support to add fields to its output. Overrides RowPluginBase::$usesFields
DataFieldRow::buildOptionsForm public function Provide a form for setting options. Overrides RowPluginBase::buildOptionsForm
DataFieldRow::defineOptions protected function Information about options for all kinds of purposes will be held here. Overrides RowPluginBase::defineOptions
DataFieldRow::extractFromOptionsArray protected static function Extracts a set of option values from a nested options array.
DataFieldRow::getFieldKeyAlias public function Return an alias for a field ID, as set in the options form.
DataFieldRow::init public function Initialize the plugin. Overrides PluginBase::init
DataFieldRow::render public function Render a row object. This usually passes through to a theme template of some form, but not always. Overrides RowPluginBase::render
DataFieldRow::validateAliasName public function Form element validation handler for \Drupal\rest\Plugin\views\row\DataFieldRow::buildOptionsForm().
DataFieldRow::validateOptionsForm public function Validate the options form. Overrides RowPluginBase::validateOptionsForm
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::$definition public property Plugins's definition
PluginBase::$displayHandler public property The display object this plugin is for.
PluginBase::$options public property Options for this plugin will be held here.
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::$renderer protected property Stores the render API renderer. 3
PluginBase::$view public property The top object of a view. 1
PluginBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies 14
PluginBase::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create 62
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::destroy public function Clears a plugin. Overrides ViewsPluginInterface::destroy 2
PluginBase::doFilterByDefinedOptions protected function Do the work to filter out stored options depending on the defined options.
PluginBase::filterByDefinedOptions public function Filter out stored options depending on the defined options. Overrides ViewsPluginInterface::filterByDefinedOptions
PluginBase::getAvailableGlobalTokens public function Returns an array of available token replacements. Overrides ViewsPluginInterface::getAvailableGlobalTokens
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::getProvider public function Returns the plugin provider. Overrides ViewsPluginInterface::getProvider
PluginBase::getRenderer protected function Returns the render API renderer. 1
PluginBase::globalTokenForm public function Adds elements for available core tokens to a form. Overrides ViewsPluginInterface::globalTokenForm
PluginBase::globalTokenReplace public function Returns a string with any core tokens replaced. Overrides ViewsPluginInterface::globalTokenReplace
PluginBase::INCLUDE_ENTITY constant Include entity row languages when listing languages.
PluginBase::INCLUDE_NEGOTIATED constant Include negotiated languages when listing languages.
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginBase::listLanguages protected function Makes an array of languages, optionally including special languages.
PluginBase::pluginTitle public function Return the human readable name of the display. Overrides ViewsPluginInterface::pluginTitle
PluginBase::preRenderAddFieldsetMarkup public static function Moves form elements into fieldsets for presentation purposes. Overrides ViewsPluginInterface::preRenderAddFieldsetMarkup
PluginBase::preRenderFlattenData public static function Flattens the structure of form elements. Overrides ViewsPluginInterface::preRenderFlattenData
PluginBase::queryLanguageSubstitutions public static function Returns substitutions for Views queries for languages.
PluginBase::setOptionDefaults protected function Fills up the options of the plugin with defaults.
PluginBase::summaryTitle public function Returns the summary of the settings in the display. Overrides ViewsPluginInterface::summaryTitle 6
PluginBase::themeFunctions public function Provide a full list of possible theme templates used by this style. Overrides ViewsPluginInterface::themeFunctions 1
PluginBase::trustedCallbacks public static function Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks 6
PluginBase::unpackOptions public function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away. Overrides ViewsPluginInterface::unpackOptions
PluginBase::usesOptions public function Returns the usesOptions property. Overrides ViewsPluginInterface::usesOptions 8
PluginBase::validate public function Validate that the plugin is correct and can be saved. Overrides ViewsPluginInterface::validate 6
PluginBase::viewsTokenReplace protected function Replaces Views' tokens in a given string. The resulting string will be sanitized with Xss::filterAdmin. 1
PluginBase::VIEWS_QUERY_LANGUAGE_SITE_DEFAULT constant Query string to indicate the site default language.
PluginBase::__construct public function Constructs a PluginBase object. Overrides PluginBase::__construct
RowPluginBase::$usesOptions protected property Denotes whether the plugin has an additional options form. Overrides PluginBase::$usesOptions 1
RowPluginBase::preRender public function Allow the style to do stuff before each row is rendered. 4
RowPluginBase::query public function Add anything to the query that we might need to. Overrides PluginBase::query 2
RowPluginBase::submitOptionsForm public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. Overrides PluginBase::submitOptionsForm 1
RowPluginBase::usesFields public function Returns the usesFields property. 4
StringTranslationTrait::$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.
TrustedCallbackInterface::THROW_EXCEPTION constant Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION constant Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING constant Untrusted callbacks trigger E_USER_WARNING errors.