hook_taxonomy

• Drupal 4.6
• Drupal 4.7
• Drupal 5
• Drupal 6

Versions

4.6

hook_taxonomy($op, $type, $object)

4.7

hook_taxonomy($op, $type, $object = NULL)

5 – 6

hook_taxonomy($op, $type, $array = NULL)

Act on taxonomy changes.

This hook allows modules to take action when the terms and vocabularies in the taxonomy are modified.

Parameters

$op What is being done to $object. Possible values:

• "delete"
• "insert"
• "update"
• "form"

$type What manner of item $object is. Possible values:

• "term"
• "vocabulary"

$object The item on which $op is being performed.

Return value

None for delete, insert and update. For operations "form", a $form object containing the form api elements that you wish to display on the form.

Related topics

Hooks

Allow modules to interact with the Drupal core.

Code

developer/hooks/core.php, line 963

<?php
function hook_taxonomy($op, $type, $object = NULL) {
  if ($type == 'vocabulary' && ($op == 'insert' || $op == 'update')) {
    if (variable_get('forum_nav_vocabulary', '') == ''
        && in_array('forum', $object['nodes'])) {
      // since none is already set, silently set this vocabulary as the navigation vocabulary
      variable_set('forum_nav_vocabulary', $object['vid']);
    }
  }
}
?>

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