How to add a vocabulary (taxonomy) to variable via administration settings pages

This is how you can add a vocabulary (taxonomy) to variable via administration settings pages.

  • First you need a menu hook admin/settings/[whatever]
  • Then a function to do the presentation of forms
  • A function to create the forms
  • A submit function storing your values in the varaible tabel

<?php
/**
 * Menu hook
 *
 * @return unknown
 */
function forumblock_menu() {
  $items = array();

  $items['admin/settings/forumblock'] = array(
    'title' => 'Forum block',
    'description' => 'Edit Forum block settings',
    'page callback' => 'forumblock_admin',
    'access arguments' => array('access administration pages'),
    'type' => MENU_NORMAL_ITEM,
  );

  return $items;
}


/**
 * Forum block administration view
 *
 */
function forumblock_admin(){

  $output .= "<p>Edit settings for Forum block";
  $output .= drupal_get_form('forumblock_admin_form');
  return $output;
}

/**
 * Forum block link admin form
 *
 */
function forumblock_admin_form(){

  $voc = taxonomy_get_vocabularies();

  foreach ($voc as $key => $vocab) {
      $options[$vocab->vid] = $vocab->name;
  }

    $form['forumblock']['user_taxonomy'] = array(
        '#type' => 'select',
        '#title' => t('User Taxonomy'),
        '#weight' => 1,
        '#default_value' => variable_get('forumblock_user_taxonomy', 0),
        '#options' => $options,
        '#description' => t('Select taxonomy used on user in forum'),
    );

    /*****************************************************/

    $form['forumblock']['submit'] = array(
        '#type' => 'submit',
        '#value' => 'Submit',
        '#weight' => 20,
    );


    return $form;
}

/**
*   Save submited forms
*
**/
function forumblock_admin_form_submit($form, &$form_state) {

    variable_set("forumblock_user_taxonomy", trim($form_state['values']['user_taxonomy']));

    drupal_set_message("Forum block setting has been saved.");

}
?>
Knowledge keywords: 
settings
vocabulary
Drupal 6.x