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views_handler_field_node_page_title.inc in Page Title 6.2

Contains the Views field handler for the Page Title field.

File

views_handler_field_node_page_title.inc
View source
<?php

/**
 * @file
 * Contains the Views field handler for the Page Title field.
 */

/**
 * Field handler to provide simple renderer that allows linking to a node.
 *
 * This is a copy from views_handler_field_node.inc in the Views module.
 * Additions are commented inline.
 */

// TODO this is a dirty hack to get around Page Title seeming to load before Node/Views?!
// Without it, you get the following error:
// Fatal error: Class 'views_handler_field_node' not found in......
module_load_include('inc', 'views', 'modules/node/views_handler_field_node');
class views_handler_field_node_page_title extends views_handler_field_node {

  /**
   * Constructor to provide additional fields to add.
   */
  function construct() {
    parent::construct();

    // Page Title: Load the node title for later.
    $this->additional_fields['title'] = array(
      'table' => 'node',
      'field' => 'title',
    );
  }
  function option_definition() {
    $options = parent::option_definition();

    // Page Title: Adding the node title fallback option and default value.
    $options['use_node_title'] = array(
      'default' => FALSE,
    );
    return $options;
  }

  /**
   * Provide link to node option and fallback to node title option.
   */
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);

    // Page Title: Adding the form field for the node title fallback option.
    $form['use_node_title'] = array(
      '#title' => t('Fall back on to Node: Title'),
      '#description' => t('If no Page Title is set for a node then the normal node title will be used instead.'),
      '#type' => 'checkbox',
      '#default_value' => !empty($this->options['use_node_title']),
    );
  }

  /**
   * Render whatever the data is as a link to the node.
   *
   * Data should be made XSS safe prior to calling this function.
   */
  function render_link($data, $values) {
    if (!empty($this->options['link_to_node']) && $data !== NULL && $data !== '') {
      $this->options['alter']['make_link'] = TRUE;
      $this->options['alter']['path'] = "node/" . $values->{$this->aliases['nid']};
      if (isset($this->aliases['language'])) {
        $languages = language_list();
        if (isset($languages[$values->{$this->aliases['language']}])) {
          $this->options['alter']['language'] = $languages[$values->{$this->aliases['language']}];
        }
        else {
          unset($this->options['alter']['language']);
        }
      }
    }
    return $data;
  }
  function render($values) {
    if (empty($values->{$this->field_alias}) && !empty($this->options['use_node_title'])) {
      return $this
        ->render_link(check_plain($values->{$this->aliases['title']}), $values);
    }
    else {
      return $this
        ->render_link(check_plain($values->{$this->field_alias}), $values);
    }
  }

}