Serializer.php in Zircon Profile 8

Contains \Drupal\rest\Plugin\views\style\Serializer.

Namespace

Drupal\rest\Plugin\views\style

File

core/modules/rest/src/Plugin/views/style/Serializer.php

<?php

/**
 * @file
 * Contains \Drupal\rest\Plugin\views\style\Serializer.
 */
namespace Drupal\rest\Plugin\views\style;

use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableDependencyInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\Plugin\views\style\StylePluginBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\Serializer\SerializerInterface;

/**
 * The style plugin for serialized output formats.
 *
 * @ingroup views_style_plugins
 *
 * @ViewsStyle(
 *   id = "serializer",
 *   title = @Translation("Serializer"),
 *   help = @Translation("Serializes views row data using the Serializer component."),
 *   display_types = {"data"}
 * )
 */
class Serializer extends StylePluginBase implements CacheableDependencyInterface {

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

  /**
   * {@inheritdoc}
   */
  protected $usesGrouping = FALSE;

  /**
   * The serializer which serializes the views result.
   *
   * @var \Symfony\Component\Serializer\Serializer
   */
  protected $serializer;

  /**
   * The available serialization formats.
   *
   * @var array
   */
  protected $formats = array();

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('serializer'), $container
      ->getParameter('serializer.formats'));
  }

  /**
   * Constructs a Plugin object.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, SerializerInterface $serializer, array $serializer_formats) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->definition = $plugin_definition + $configuration;
    $this->serializer = $serializer;
    $this->formats = $serializer_formats;
  }

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

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    $form['formats'] = array(
      '#type' => 'checkboxes',
      '#title' => $this
        ->t('Accepted request formats'),
      '#description' => $this
        ->t('Request formats that will be allowed in responses. If none are selected all formats will be allowed.'),
      '#options' => array_combine($this->formats, $this->formats),
      '#default_value' => $this->options['formats'],
    );
  }

  /**
   * {@inheritdoc}
   */
  public function submitOptionsForm(&$form, FormStateInterface $form_state) {
    parent::submitOptionsForm($form, $form_state);
    $formats = $form_state
      ->getValue(array(
      'style_options',
      'formats',
    ));
    $form_state
      ->setValue(array(
      'style_options',
      'formats',
    ), array_filter($formats));
  }

  /**
   * {@inheritdoc}
   */
  public function render() {
    $rows = array();

    // If the Data Entity row plugin is used, this will be an array of entities
    // which will pass through Serializer to one of the registered Normalizers,
    // which will transform it to arrays/scalars. If the Data field row plugin
    // is used, $rows will not contain objects and will pass directly to the
    // Encoder.
    foreach ($this->view->result as $row_index => $row) {
      $this->view->row_index = $row_index;
      $rows[] = $this->view->rowPlugin
        ->render($row);
    }
    unset($this->view->row_index);

    // Get the content type configured in the display or fallback to the
    // default.
    if (empty($this->view->live_preview)) {
      $content_type = $this->displayHandler
        ->getContentType();
    }
    else {
      $content_type = !empty($this->options['formats']) ? reset($this->options['formats']) : 'json';
    }
    return $this->serializer
      ->serialize($rows, $content_type);
  }

  /**
   * Gets a list of all available formats that can be requested.
   *
   * This will return the configured formats, or all formats if none have been
   * selected.
   *
   * @return array
   *   An array of formats.
   */
  public function getFormats() {
    return $this->options['formats'];
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheMaxAge() {
    return Cache::PERMANENT;
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheContexts() {
    return [
      'request_format',
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheTags() {
    return [];
  }

}

Classes

Name	Description
Serializer	The style plugin for serialized output formats.