function comment_query_node_access_alter

Implements hook_query_TAG_alter().

Lists of comments (such as at admin/content/comment) are always tied to queries that use the "node_access" tag, since the comments are shown on node paths. Alter node access queries to hide comments when they are disabled at the node type level.

File

core/modules/comment/comment.module, line 1507

Enables users to comment on published content.

Code

function comment_query_node_access_alter(QueryAlterableInterface $query) {
  $comment_alias = FALSE;
  $node_alias = FALSE;

  foreach ($query->getTables() as $alias => $table) {
    if ($table['table'] == 'comment') {
      $comment_alias = $alias;
    }
    elseif ($table['table'] == 'node') {
      $node_alias = $alias;
    }
  }

  if ($comment_alias && $node_alias) {
    $node_types = node_type_get_types();

    $excluded_content_types = array();
    foreach ($node_types as $type_name => $node_type) {
      if (empty($node_type->settings['comment_enabled'])) {
        $excluded_content_types[] = $type_name;
      }
    }

    if ($excluded_content_types) {
      $query->condition($node_alias . '.type', array($excluded_content_types), 'NOT IN');
    }
  }
}