EventOperation.php in RNG - Events and Registrations 8

Namespace

Drupal\rng\Plugin\Condition

File

src/Plugin/Condition/EventOperation.php

<?php

namespace Drupal\rng\Plugin\Condition;

use Drupal\Core\Condition\ConditionPluginBase;
use Drupal\Core\Form\FormStateInterface;

/**
 * Provides an identity has operation permission on event condition.
 *
 * Use registration context so it does not trigger on 'create' operations.
 *
 * @Condition(
 *   id = "rng_event_operation",
 *   label = @Translation("Operation on event"),
 *   context = {
 *     "event" = @ContextDefinition("entity",
 *       label = @Translation("Event"),
 *       required = TRUE
 *     ),
 *     "user" = @ContextDefinition("entity:user",
 *       label = @Translation("User"),
 *       required = TRUE
 *     )
 *   }
 * )
 */
class EventOperation extends ConditionPluginBase {

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {

    // @todo: select an operation.
    $form['description']['#markup'] = $this
      ->t('For %operation operations.', [
      '%operation' => implode(' ', array_keys($this->configuration['operations'])),
    ]);
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'operations' => [
        'manage event' => TRUE,
      ],
    ] + parent::defaultConfiguration();
  }

  /**
   * {@inheritdoc}
   */
  public function summary() {
    $operations = [];
    foreach ($this->configuration['operations'] as $operation => $granted) {
      if ($granted) {
        $operations[] = $this
          ->t("%operation", [
          '%operation' => $operation,
        ]);
      }
    }
    return $this
      ->t(!$this
      ->isNegated() ? 'Logged-in user has access to operations on event: @operations' : 'Logged-in user does not have access to operations on event: @operations', [
      '@operations' => count($operations) > 1 ? implode($this
        ->t(' and '), $operations) : reset($operations),
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function evaluate() {
    $operation = 'manage event';

    /* @var \Drupal\user\UserInterface $user */
    $user = $this
      ->getContextValue('user');

    /* @var \Drupal\Core\Entity\EntityInterface $event */
    $event = $this
      ->getContextValue('event');
    return $event
      ->access($operation);
  }

}

Classes

Name	Description
EventOperation	Provides an identity has operation permission on event condition.