Drupal hook_nodeapi example - Transform CCK field to body content

This is how you can transform a CCK field and add it to the body content by using nodeapi

<?php
function riddle_nodeapi(&$node, $op, $teaser, $page) {
  if ($node->type == "historia") {

          switch ($op) {

          case 'view':
                if ($node->field_svar[0]['value'] != "" AND $page == 1) {
                       $svar = '<form><fieldset class="collapsible collapsed">
                                      <legend>Svar</legend>
                                      <div>'.$node->field_svar[0]['value'].'</div>
                              </fieldset></form>';

                    $node->content['riddle'] = array(
                      '#value' => $svar,
                      '#weight' => 0,
                    );

                    if (is_array($node->content['field_svar'])) {
                           unset($node->content['field_svar']);
                     }
                  }

          break;
          }
  }
}
?>

In the example above a colapsible field is used and to make this work on a view of a page you have to add the JavaScript collapse.js, witch is normally loaded on add or edit. In my case I added it in the page.tpl.php file in the tag. You find the file in the theme folder.

<?php
<script type="text/javascript" src="/misc/collapse.js?"></script>
?>
Knowledge keywords: 
hook_nodeapi
Drupal 6.x