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Drupal example source code file (views_handler_field_comment_node_link.inc)

This example Drupal source code file (views_handler_field_comment_node_link.inc) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

array, comment, field, file, form, form_state, function, link, node, php, return, the, type, values

The views_handler_field_comment_node_link.inc Drupal example source code

// $Id: views_handler_field_comment_node_link.inc,v 2010/11/16 17:01:44 dereine Exp $
* Handler for showing comment module's node link.
class views_handler_field_comment_node_link extends views_handler_field {
  function construct() {

    // Add the node fields that comment_link will need..
    $this->additional_fields['nid'] = array(
      'field' => 'nid',
    $this->additional_fields['type'] = array(
      'field' => 'type',
    $this->additional_fields['comment'] = array(
      'field' => 'comment',

  function option_definition() {
    $options = parent::option_definition();
    $options['teaser'] = array('default' => 0);
    return $options;

  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);

    $form['teaser'] = array(
      '#type' => 'checkbox',
      '#title' => t('Show teaser-style link'),
      '#default_value' => $this->options['teaser'],
      '#description' => t('Show the comment link in the form used on standard node teasers, rather than the full node form.'),


  function query() {

  function render($values) {
    // Build fake $node.
    $node = new stdClass();
    $node->nid      = $values->{$this->aliases['nid']};
    $node->type     = $values->{$this->aliases['type']};
    $node->comment  = $values->{$this->aliases['comment']};

    // Call comment.module's hook_link: comment_link($type, $node = NULL, $teaser = FALSE)
    // Call node by reference so that something is changed here
    comment_node_view($node, $this->options['teaser'] ? 'teaser' : 'full');
    // question: should we run these through:    drupal_alter('link', $links, $node);
    // might this have unexpected consequences if these hooks expect items in $node that we don't have?

    // Only render the links, if they are defined.
    return !empty($node->content['links']['comment']) ? drupal_render($node->content['links']['comment']) : '';

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