CommentGroupContentFormatter.php in Open Social 8.8

Namespace

Drupal\group_core_comments\Plugin\Field\FieldFormatter

File

modules/custom/group_core_comments/src/Plugin/Field/FieldFormatter/CommentGroupContentFormatter.php

<?php

namespace Drupal\group_core_comments\Plugin\Field\FieldFormatter;

use Drupal\comment\Plugin\Field\FieldFormatter\CommentDefaultFormatter;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Url;
use Drupal\group\Entity\GroupContent;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Access\AccessResult;
use Drupal\Core\Link;

/**
 * Plugin implementation of the 'comment_group_content' formatter.
 *
 * @FieldFormatter(
 *   id = "comment_group_content",
 *   label = @Translation("Comment on group content"),
 *   field_types = {
 *     "comment"
 *   }
 * )
 */
class CommentGroupContentFormatter extends CommentDefaultFormatter {

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $output = parent::viewElements($items, $langcode);
    $entity = $items
      ->getEntity();

    // Exclude entities without the set id.
    if (!empty($entity
      ->id())) {
      $group_contents = GroupContent::loadByEntity($entity);
    }
    if (!empty($group_contents)) {

      // Add cache contexts.
      $output['#cache']['contexts'][] = 'group.type';
      $output['#cache']['contexts'][] = 'user.group_permissions';
      $account = \Drupal::currentUser();

      /** @var \Drupal\group\Entity\GroupInterface $group */
      $group = reset($group_contents)
        ->getGroup();
      $group_url = $group
        ->toUrl('canonical', [
        'language' => $group
          ->language(),
      ]);
      $access_post_comments = $this
        ->getPermissionInGroups('post comments', $account, $group_contents, $output);
      if ($access_post_comments
        ->isForbidden()) {
        $join_directly_bool = FALSE;
        if ($group
          ->getGroupType()
          ->id() === 'flexible_group') {
          if (social_group_flexible_group_can_join_directly($group)) {
            $join_directly_bool = TRUE;
          }
        }
        elseif ($group
          ->hasPermission('join group', $account)) {
          $join_directly_bool = TRUE;
        }

        // If a user can't join directly, about page makes more sense.
        if (!$join_directly_bool) {
          $group_url = Url::fromRoute('view.group_information.page_group_about', [
            'group' => $group
              ->id(),
          ]);
        }
        if ($join_directly_bool) {
          $action = [
            'type' => 'join_directly',
            'label' => $this
              ->t('Join group'),
            'url' => Url::fromRoute('group_core_comments.quick_join_group', [
              'group' => $group
                ->id(),
            ]),
            'class' => 'btn btn-accent',
          ];
        }
        else {
          $action = [
            'type' => 'invitation_only',
            'label' => $this
              ->t('Invitation only'),
            'url' => NULL,
            'class' => 'btn btn-accent disabled',
          ];
        }
        $description = $this
          ->t('You are not allowed to comment on content in a group you are not member of.');
        $group_image = NULL;
        if ($group
          ->hasField('field_group_image') && !$group
          ->get('field_group_image')
          ->isEmpty()) {

          /** @var \Drupal\file\FileInterface $image_file */
          $image_file = $group
            ->get('field_group_image')->entity;
          $group_image = [
            '#theme' => 'image_style',
            '#style_name' => 'social_xx_large',
            '#uri' => $image_file
              ->getFileUri(),
          ];
        }
        $output[0]['comment_form'] = [
          '#theme' => 'comments_join_group',
          '#description' => $description,
          '#group_info' => [
            'image' => $group_image,
            'label' => $group
              ->label(),
            'type' => $group
              ->getGroupType()
              ->label(),
            'members_count' => count($group
              ->getMembers()),
            'url' => $group_url
              ->toString(),
          ],
          '#action' => $action,
        ];
      }
      $access_view_comments = $this
        ->getPermissionInGroups('access comments', $account, $group_contents, $output);
      if ($access_view_comments
        ->isForbidden()) {
        $description = $this
          ->t('You are not allowed to view comments on content in a group you are not member of. You can join the group @group_link.', [
          '@group_link' => Link::fromTextAndUrl($this
            ->t('here'), $group_url)
            ->toString(),
        ]);
        unset($output[0]);
        $output[0]['comments'] = [
          '#markup' => $description,
        ];
      }
    }
    return $output;
  }

  /**
   * Checks if account was granted permission in group.
   */
  protected function getPermissionInGroups($perm, AccountInterface $account, $group_contents, &$output) {
    $renderer = \Drupal::service('renderer');
    foreach ($group_contents as $group_content) {
      $group = $group_content
        ->getGroup();

      // Add cacheable dependency.
      $membership = $group
        ->getMember($account);
      $renderer
        ->addCacheableDependency($output, $membership);
      if ($group
        ->hasPermission($perm, $account)) {
        return AccessResult::allowed()
          ->cachePerUser();
      }
    }

    // Fallback.
    return AccessResult::forbidden()
      ->cachePerUser();
  }

}

Classes

Name	Description
CommentGroupContentFormatter	Plugin implementation of the 'comment_group_content' formatter.