function comment_node_view in Drupal 7

Implements hook_node_view().

File

modules/comment/comment.module, line 615

Enables users to comment on published content.

Code

function comment_node_view($node, $view_mode) {
  $links = array();
  if ($node->comment != COMMENT_NODE_HIDDEN) {
    if ($view_mode == 'rss') {

      // Add a comments RSS element which is a URL to the comments of this node.
      $node->rss_elements[] = array(
        'key' => 'comments',
        'value' => url('node/' . $node->nid, array(
          'fragment' => 'comments',
          'absolute' => TRUE,
        )),
      );
    }
    elseif ($view_mode == 'teaser') {

      // Teaser view: display the number of comments that have been posted,
      // or a link to add new comments if the user has permission, the node
      // is open to new comments, and there currently are none.
      if (user_access('access comments')) {
        if (!empty($node->comment_count)) {
          $links['comment-comments'] = array(
            'title' => format_plural($node->comment_count, '1 comment', '@count comments'),
            'href' => "node/{$node->nid}",
            'attributes' => array(
              'title' => t('Jump to the first comment of this posting.'),
            ),
            'fragment' => 'comments',
            'html' => TRUE,
          );

          // Show a link to the first new comment.
          if ($new = comment_num_new($node->nid)) {
            $links['comment-new-comments'] = array(
              'title' => format_plural($new, '1 new comment', '@count new comments'),
              'href' => "node/{$node->nid}",
              'query' => comment_new_page_count($node->comment_count, $new, $node),
              'attributes' => array(
                'title' => t('Jump to the first new comment of this posting.'),
              ),
              'fragment' => 'new',
              'html' => TRUE,
            );
          }
        }
      }
      if ($node->comment == COMMENT_NODE_OPEN) {
        if (user_access('post comments')) {
          $links['comment-add'] = array(
            'title' => t('Add new comment'),
            'href' => "comment/reply/{$node->nid}",
            'attributes' => array(
              'title' => t('Add a new comment to this page.'),
            ),
            'fragment' => 'comment-form',
          );
        }
        else {
          $links['comment_forbidden'] = array(
            'title' => theme('comment_post_forbidden', array(
              'node' => $node,
            )),
            'html' => TRUE,
          );
        }
      }
    }
    elseif ($view_mode != 'search_index' && $view_mode != 'search_result') {

      // Node in other view modes: add a "post comment" link if the user is
      // allowed to post comments and if this node is allowing new comments.
      // But we don't want this link if we're building the node for search
      // indexing or constructing a search result excerpt.
      if ($node->comment == COMMENT_NODE_OPEN) {
        $comment_form_location = variable_get('comment_form_location_' . $node->type, COMMENT_FORM_BELOW);
        if (user_access('post comments')) {

          // Show the "post comment" link if the form is on another page, or
          // if there are existing comments that the link will skip past.
          if ($comment_form_location == COMMENT_FORM_SEPARATE_PAGE || !empty($node->comment_count) && user_access('access comments')) {
            $links['comment-add'] = array(
              'title' => t('Add new comment'),
              'attributes' => array(
                'title' => t('Share your thoughts and opinions related to this posting.'),
              ),
              'href' => "node/{$node->nid}",
              'fragment' => 'comment-form',
            );
            if ($comment_form_location == COMMENT_FORM_SEPARATE_PAGE) {
              $links['comment-add']['href'] = "comment/reply/{$node->nid}";
            }
          }
        }
        else {
          $links['comment_forbidden'] = array(
            'title' => theme('comment_post_forbidden', array(
              'node' => $node,
            )),
            'html' => TRUE,
          );
        }
      }
    }
    $node->content['links']['comment'] = array(
      '#theme' => 'links__node__comment',
      '#links' => $links,
      '#attributes' => array(
        'class' => array(
          'links',
          'inline',
        ),
      ),
    );

    // Only append comments when we are building a node on its own node detail
    // page. We compare $node and $page_node to ensure that comments are not
    // appended to other nodes shown on the page, for example a node_reference
    // displayed in 'full' view mode within another node.
    if ($node->comment && $view_mode == 'full' && node_is_page($node) && empty($node->in_preview)) {
      $node->content['comments'] = comment_node_page_additions($node);
    }
  }
}