Entity.php in Zircon Profile 8

Contains \Drupal\views\Plugin\views\argument_validator\Entity.

Namespace

Drupal\views\Plugin\views\argument_validator

File

core/modules/views/src/Plugin/views/argument_validator/Entity.php

<?php

/**
 * @file
 * Contains \Drupal\views\Plugin\views\argument_validator\Entity.
 */
namespace Drupal\views\Plugin\views\argument_validator;

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\Plugin\views\argument\ArgumentPluginBase;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Defines a argument validator plugin for each entity type.
 *
 * @ViewsArgumentValidator(
 *   id = "entity",
 *   deriver = "Drupal\views\Plugin\Derivative\ViewsEntityArgumentValidator"
 * )
 *
 * @see \Drupal\views\Plugin\Derivative\ViewsEntityArgumentValidator
 */
class Entity extends ArgumentValidatorPluginBase {

  /**
   * The entity manager.
   *
   * @var \Drupal\Core\Entity\EntityManagerInterface
   */
  protected $entityManager;

  /**
   * If this validator can handle multiple arguments.
   *
   * @var bool
   */
  protected $multipleCapable = TRUE;

  /**
   * Constructs an \Drupal\views\Plugin\views\argument_validator\Entity object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
   *   The entity manager.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityManagerInterface $entity_manager) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->entityManager = $entity_manager;
  }

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

  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['bundles'] = array(
      'default' => array(),
    );
    $options['access'] = array(
      'default' => FALSE,
    );
    $options['operation'] = array(
      'default' => 'view',
    );
    $options['multiple'] = array(
      'default' => FALSE,
    );
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    $entity_type_id = $this->definition['entity_type'];

    // Derivative IDs are all entity:entity_type. Sanitized for js.
    // The ID is converted back on submission.
    $sanitized_id = ArgumentPluginBase::encodeValidatorId($this->definition['id']);
    $entity_type = $this->entityManager
      ->getDefinition($entity_type_id);

    // If the entity has bundles, allow option to restrict to bundle(s).
    if ($entity_type
      ->hasKey('bundle')) {
      $bundle_options = array();
      foreach ($this->entityManager
        ->getBundleInfo($entity_type_id) as $bundle_id => $bundle_info) {
        $bundle_options[$bundle_id] = $bundle_info['label'];
      }
      $form['bundles'] = array(
        '#title' => $entity_type
          ->getBundleLabel() ?: $this
          ->t('Bundles'),
        '#default_value' => $this->options['bundles'],
        '#type' => 'checkboxes',
        '#options' => $bundle_options,
        '#description' => $this
          ->t('If none are selected, all are allowed.'),
      );
    }

    // Offer the option to filter by access to the entity in the argument.
    $form['access'] = array(
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Validate user has access to the %name', array(
        '%name' => $entity_type
          ->getLabel(),
      )),
      '#default_value' => $this->options['access'],
    );
    $form['operation'] = array(
      '#type' => 'radios',
      '#title' => $this
        ->t('Access operation to check'),
      '#options' => array(
        'view' => $this
          ->t('View'),
        'update' => $this
          ->t('Edit'),
        'delete' => $this
          ->t('Delete'),
      ),
      '#default_value' => $this->options['operation'],
      '#states' => array(
        'visible' => array(
          ':input[name="options[validate][options][' . $sanitized_id . '][access]"]' => array(
            'checked' => TRUE,
          ),
        ),
      ),
    );

    // If class is multiple capable give the option to validate single/multiple.
    if ($this->multipleCapable) {
      $form['multiple'] = array(
        '#type' => 'radios',
        '#title' => $this
          ->t('Multiple arguments'),
        '#options' => array(
          0 => $this
            ->t('Single ID', array(
            '%type' => $entity_type
              ->getLabel(),
          )),
          1 => $this
            ->t('One or more IDs separated by , or +', array(
            '%type' => $entity_type
              ->getLabel(),
          )),
        ),
        '#default_value' => (string) $this->options['multiple'],
      );
    }
  }

  /**
   * {@inheritdoc}
   */
  public function submitOptionsForm(&$form, FormStateInterface $form_state, &$options = array()) {

    // Filter out unused options so we don't store giant unnecessary arrays.
    $options['bundles'] = array_filter($options['bundles']);
  }

  /**
   * {@inheritdoc}
   */
  public function validateArgument($argument) {
    $entity_type = $this->definition['entity_type'];
    if ($this->multipleCapable && $this->options['multiple']) {

      // At this point only interested in individual IDs no matter what type,
      // just splitting by the allowed delimiters.
      $ids = array_filter(preg_split('/[,+ ]/', $argument));
    }
    elseif ($argument) {
      $ids = array(
        $argument,
      );
    }
    else {
      return FALSE;
    }
    $entities = $this->entityManager
      ->getStorage($entity_type)
      ->loadMultiple($ids);

    // Validate each id => entity. If any fails break out and return false.
    foreach ($ids as $id) {

      // There is no entity for this ID.
      if (!isset($entities[$id])) {
        return FALSE;
      }
      if (!$this
        ->validateEntity($entities[$id])) {
        return FALSE;
      }
    }
    return TRUE;
  }

  /**
   * Validates an individual entity against class access settings.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *
   * @return bool
   *   True if validated.
   */
  protected function validateEntity(EntityInterface $entity) {

    // If access restricted by entity operation.
    if ($this->options['access'] && !$entity
      ->access($this->options['operation'])) {
      return FALSE;
    }

    // If restricted by bundle.
    $bundles = $this->options['bundles'];
    if (count($bundles) && empty($bundles[$entity
      ->bundle()])) {
      return FALSE;
    }
    return TRUE;
  }

  /**
   * {@inheritdoc}
   */
  public function calculateDependencies() {
    $dependencies = parent::calculateDependencies();
    $entity_type_id = $this->definition['entity_type'];
    $bundle_entity_type = $this->entityManager
      ->getDefinition($entity_type_id)
      ->getBundleEntityType();

    // The bundle entity type might not exist. For example, users do not have
    // bundles.
    if ($this->entityManager
      ->hasHandler($bundle_entity_type, 'storage')) {
      $bundle_entity_storage = $this->entityManager
        ->getStorage($bundle_entity_type);
      foreach ($bundle_entity_storage
        ->loadMultiple(array_keys($this->options['bundles'])) as $bundle_entity) {
        $dependencies[$bundle_entity
          ->getConfigDependencyKey()][] = $bundle_entity
          ->getConfigDependencyName();
      }
    }
    return $dependencies;
  }

}

Classes

Name	Description
Entity	Defines a argument validator plugin for each entity type.