ExtraFieldViewsPlugin.php in Entity Extra Field 8

Namespace

Drupal\entity_extra_field\Plugin\ExtraFieldType

File

src/Plugin/ExtraFieldType/ExtraFieldViewsPlugin.php

<?php

namespace Drupal\entity_extra_field\Plugin\ExtraFieldType;

use Drupal\Core\Annotation\Translation;
use Drupal\Core\Entity\Display\EntityDisplayInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\entity_extra_field\Annotation\ExtraFieldType;
use Drupal\entity_extra_field\ExtraFieldTypePluginBase;
use Drupal\views\Entity\View;

/**
 * Define extra field views plugin.
 *
 * @ExtraFieldType(
 *   id = "views",
 *   label = @Translation("Views")
 * )
 */
class ExtraFieldViewsPlugin extends ExtraFieldTypePluginBase {

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'display' => NULL,
      'view_name' => NULL,
      'arguments' => [],
    ] + parent::defaultConfiguration();
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    $form = parent::buildConfigurationForm($form, $form_state);
    $view_name = $this
      ->getPluginFormStateValue('view_name', $form_state);
    $form['view_name'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('View'),
      '#required' => TRUE,
      '#options' => $this
        ->getViewOptions(),
      '#empty_option' => $this
        ->t('- Select -'),
      '#default_value' => $view_name,
      '#ajax' => [
        'event' => 'change',
        'method' => 'replace',
      ] + $this
        ->extraFieldPluginAjax(),
    ];
    if (isset($view_name) && !empty($view_name)) {

      /** @var \Drupal\views\Entity\View $instance */
      $view = $this
        ->loadView($view_name);
      $display = $this
        ->getPluginFormStateValue('display', $form_state);
      $form['display'] = [
        '#type' => 'select',
        '#title' => $this
          ->t('Display'),
        '#required' => TRUE,
        '#options' => $this
          ->getViewDisplayOptions($view),
        '#default_value' => $display,
      ];
      $form['arguments'] = [
        '#type' => 'textfield',
        '#title' => $this
          ->t('Arguments'),
        '#description' => $this
          ->t('Input the views display arguments. If there
          are multiple, use a comma delimiter. <br/> <strong>Note:</strong>
          Tokens are supported.'),
        '#default_value' => $this
          ->getPluginFormStateValue('arguments', $form_state),
      ];
      if ($this->moduleHandler
        ->moduleExists('token')) {
        $form['token_replacements'] = [
          '#theme' => 'token_tree_link',
          '#token_types' => $this
            ->getEntityTokenTypes($this
            ->getTargetEntityTypeId(), $this
            ->getTargetEntityTypeBundle()
            ->id()),
        ];
      }
    }
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function build(EntityInterface $entity, EntityDisplayInterface $display) {
    return $this
      ->renderView($entity);
  }

  /**
   * {@inheritDoc}
   */
  public function calculateDependencies() {

    /** @var \Drupal\views\ViewEntityInterface $view */
    if ($view = $this
      ->getView()) {
      $this
        ->addDependencies($view
        ->getDependencies());
    }
    return parent::calculateDependencies();
  }

  /**
   * Render the view.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The view entity instance.
   *
   * @return array|null
   *   An renderable array of the view.
   *
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function renderView(EntityInterface $entity) {
    $view_name = $this
      ->getViewName();
    if (!isset($view_name)) {
      return [];
    }
    $view_arguments = $this
      ->getViewArguments($entity);
    return views_embed_view($view_name, $this
      ->getViewDisplay(), ...$view_arguments);
  }

  /**
   * Get the view instance.
   *
   * @return bool|\Drupal\Core\Entity\EntityInterface|null
   *   The view instance.
   *
   * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function getView() {
    $view_name = $this
      ->getViewName();
    if (!isset($view_name)) {
      return FALSE;
    }
    return $this
      ->loadView($view_name);
  }

  /**
   * Get the view name.
   *
   * @return string|null
   *   The view name; otherwise NULL.
   */
  protected function getViewName() {
    return $this
      ->getConfiguration()['view_name'] ?? NULL;
  }

  /**
   * Get the view display.
   *
   * @return string
   *   The view display name; otherwise default.
   */
  protected function getViewDisplay() {
    $configuration = $this
      ->getConfiguration();
    return isset($configuration['display']) ? $configuration['display'] : 'default';
  }

  /**
   * Get the view arguments.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity instance.
   *
   * @return array
   *   An array of view arguments.
   *
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function getViewArguments(EntityInterface $entity) {
    $configuration = $this
      ->getConfiguration();
    if (!isset($configuration['arguments']) || empty($configuration['arguments'])) {
      return [];
    }
    $arguments = array_filter(explode(',', $configuration['arguments']));
    foreach ($arguments as &$argument) {
      $argument = $this
        ->processEntityToken($argument, $entity);
    }
    return $arguments;
  }

  /**
   * Get view options.
   *
   * @return array
   *   An array of view options.
   *
   * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function getViewOptions() {
    $options = [];

    /** @var \Drupal\views\Entity\View $view */
    foreach ($this
      ->getActiveViewList() as $view_id => $view) {
      $options[$view_id] = $view
        ->label();
    }
    return $options;
  }

  /**
   * Get view display options.
   *
   * @param \Drupal\views\Entity\View $view
   *   The view instance.
   *
   * @return array
   *   An array of view display options.
   */
  protected function getViewDisplayOptions(View $view) {
    $options = [];
    $exec = $view
      ->getExecutable();
    $exec
      ->initHandlers();

    /** @var \Drupal\views\Plugin\views\display\DisplayPluginInterface $display */
    foreach ($exec->displayHandlers
      ->getIterator() as $display_id => $display) {
      if (!isset($display->display) || !isset($display->display['display_title'])) {
        continue;
      }
      $options[$display_id] = $display->display['display_title'];
    }
    return $options;
  }

  /**
   * Load view instance.
   *
   * @param $view_name
   *   The view name.
   *
   * @return \Drupal\Core\Entity\EntityInterface|null
   *   The view instance.
   *
   * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function loadView($view_name) {
    return $this
      ->getViewStorage()
      ->load($view_name);
  }

  /**
   * Get active view list.
   *
   * @return \Drupal\Core\Entity\EntityInterface[]
   *   An array of active views.
   *
   * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function getActiveViewList() {
    return $this
      ->getViewStorage()
      ->loadByProperties([
      'status' => TRUE,
    ]);
  }

  /**
   * Get view storage instance.
   *
   * @return \Drupal\Core\Entity\EntityStorageInterface
   *   The view storage instance.
   *
   * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   */
  protected function getViewStorage() {
    return $this->entityTypeManager
      ->getStorage('view');
  }

}

Classes

Name	Description
ExtraFieldViewsPlugin	Define extra field views plugin.