comment.views.inc

<?php


/**
 * @file
 * Provide views data for comment.module.
 */
use Drupal\Core\Entity\ContentEntityInterface;

/**
 * Implements hook_views_data_alter().
 */
function comment_views_data_alter(&$data) {
    // New comments are only supported for node table because it requires the
    // history table.
    $data['node']['new_comments'] = [
        'title' => t('New comments'),
        'help' => t('The number of new comments on the node.'),
        'field' => [
            'id' => 'node_new_comments',
            'no group by' => TRUE,
        ],
    ];
    // Provides an integration for each entity type except comment.
    foreach (\Drupal::entityTypeManager()->getDefinitions() as $entity_type_id => $entity_type) {
        if ($entity_type_id == 'comment' || !$entity_type->entityClassImplements(ContentEntityInterface::class) || !$entity_type->getBaseTable()) {
            continue;
        }
        $fields = \Drupal::service('comment.manager')->getFields($entity_type_id);
        $base_table = $entity_type->getDataTable() ?: $entity_type->getBaseTable();
        $args = [
            '@entity_type' => $entity_type_id,
        ];
        if ($fields) {
            $data[$base_table]['comments_link'] = [
                'field' => [
                    'title' => t('Add comment link'),
                    'help' => t('Display the standard add comment link used on regular @entity_type, which will only display if the viewing user has access to add a comment.', $args),
                    'id' => 'comment_entity_link',
                ],
            ];
            // Multilingual properties are stored in data table.
            if (!($table = $entity_type->getDataTable())) {
                $table = $entity_type->getBaseTable();
            }
            $data[$table]['uid_touch'] = [
                'title' => t('User posted or commented'),
                'help' => t('Display nodes only if a user posted the @entity_type or commented on the @entity_type.', $args),
                'argument' => [
                    'field' => 'uid',
                    'name table' => 'users_field_data',
                    'name field' => 'name',
                    'id' => 'argument_comment_user_uid',
                    'no group by' => TRUE,
                    'entity_type' => $entity_type_id,
                    'entity_id' => $entity_type->getKey('id'),
                ],
                'filter' => [
                    'field' => 'uid',
                    'name table' => 'users_field_data',
                    'name field' => 'name',
                    'id' => 'comment_user_uid',
                    'entity_type' => $entity_type_id,
                    'entity_id' => $entity_type->getKey('id'),
                ],
            ];
            foreach ($fields as $field_name => $field) {
                $data[$base_table][$field_name . '_cid'] = [
                    'title' => t('Comments of the @entity_type using field: @field_name', $args + [
                        '@field_name' => $field_name,
                    ]),
                    'help' => t('Relate all comments on the @entity_type. This will create 1 duplicate record for every comment. Usually if you need this it is better to create a comment view.', $args),
                    'relationship' => [
                        'group' => t('Comment'),
                        'label' => t('Comments'),
                        'base' => 'comment_field_data',
                        'base field' => 'entity_id',
                        'relationship field' => $entity_type->getKey('id'),
                        'id' => 'standard',
                        'extra' => [
                            [
                                'field' => 'entity_type',
                                'value' => $entity_type_id,
                            ],
                            [
                                'field' => 'field_name',
                                'value' => $field_name,
                            ],
                        ],
                    ],
                ];
            }
        }
    }
}