function comment_ranking in Drupal 7

Same name and namespace in other branches

1. 8 core/modules/comment/comment.module \comment_ranking()
2. 9 core/modules/comment/comment.module \comment_ranking()

Implements hook_ranking().

File

modules/comment/comment.module, line 2676

Enables users to comment on published content.

Code

function comment_ranking() {
  return array(
    'comments' => array(
      'title' => t('Number of comments'),
      'join' => array(
        'type' => 'LEFT',
        'table' => 'node_comment_statistics',
        'alias' => 'node_comment_statistics',
        'on' => 'node_comment_statistics.nid = i.sid',
      ),
      // Inverse law that maps the highest reply count on the site to 1 and 0 to 0.
      'score' => '2.0 - 2.0 / (1.0 + node_comment_statistics.comment_count * CAST(:scale AS DECIMAL))',
      'arguments' => array(
        ':scale' => variable_get('node_cron_comments_scale', 0),
      ),
    ),
  );
}