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<?php
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// $Id: taxonomy_delegate.module,v 1.1 2008/02/23 05:00:02 nancyw Exp $
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/**
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* @file
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* Allows delegating taxonomy maintenance.
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*/
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// ******************************
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// ***** "Overhead" Section *****
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// ******************************
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/**
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* Implementation of hook_help().
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* The first case adds a little help text.
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* The second case adds some submission guidelines on the create content page.
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*/
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function taxonomy_delegate_help($path, $args = null) {
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switch ($path) {
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case 'admin/help#taxonomy_delegate':
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$output = '<p>'. t('The taxonomy_delegate module allows the administrator to delegate the maintenance of selected vocabularies without the need to grant "access taxonomy" permission. Delegation is done on the <a href="!link">Category Delegate</a> tab of the Categories administration page.', array('!link' => 'admin/content/taxonomy/delegate')) .'</p>';
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if (module_exists('forum')) {
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$output .= '<p>'. t('Note that forum containers and topics are a vocabulary, so you may delegate their maintenance to a specific role without giving full forums administration permission.') .'</p>';
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}
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break;
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case 'admin/content/taxonomy/delegate':
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$output = '<p>'. t('This is an overview of the current delegation of authority to administer categories. Setting of the delegation is done on the vocabulary edit page.') .'</p>';
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return $output;
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}
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}
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/**
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* Implementation of hook_menu().
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* The only menu items for this module is to list the emails that were intercepted.
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* It will be under the admin >> logs section of the Administer menu.
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*/
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function taxonomy_delegate_menu() {
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global $user;
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$items = array();
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// Admin Settings - becomes a tab on the admin >> categories page
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$items['admin/content/taxonomy/delegate'] = array(
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'title' => 'Delegation',
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'page callback' => 'taxonomy_delegate_admin',
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'access arguments' => array('administer taxonomy'),
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'description' => 'Allow delegation of taxonomy admin to specific roles.',
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'type' => MENU_LOCAL_TASK,
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);
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// User Admin callback.
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$any = count(_taxonomy_delegate_my_vocabularies());
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if ($any) {
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$items['category_admin'] = array(
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'title' => 'Administer My Categories',
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'page callback' => 'taxonomy_delegate_mycategories',
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'access arguments' => array('access content'),
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);
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}
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return $items;
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}
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/**
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* Implementation of hook_enable.
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* This function logs a message saying the module is enabled and gives the user id.
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*/
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function taxonomy_delegate_enable() {
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global $user;
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watchdog('taxonomy_delegate', 'taxonomy_delegate module enabled by !name', array('!name' => theme('username', $user)));
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}
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/**
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* Implementation of hook_disable.
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* This function logs a message saying the module is disabled and gives the user id.
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*/
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function taxonomy_delegate_disable() {
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global $user;
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watchdog('taxonomy_delegate', 'taxonomy_delegate module disabled by !name', array('!name' => theme('username', $user)));
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}
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// *****************************
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// ***** "Working" Section *****
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// *****************************
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/**
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* Implementation of hook_form_alter.
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* Alters the taxonomy vocabulary for, to allow delegation.
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*/
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function taxonomy_delegate_form_alter(&$form, &$form_state, $form_id) {
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switch ($form_id) {
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case 'taxonomy_form_vocabulary':
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$vid = $form['vid']['#value'];
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$roles = _taxonomy_delegate_get_roles(true);
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unset($roles[DRUPAL_ANONYMOUS_RID]); // Remove anonymous role.
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$defaults = _taxonomy_delegate_get_delegates($vid);
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$vocab = taxonomy_vocabulary_load($vid);
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$form['delete_current'] = array(
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'#type' => 'value',
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'#value' => count($defaults),
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);
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$form['taxonomy_delegate'] = array(
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'#type' => 'fieldset',
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'#title' => t('Delegation'),
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'#description' => t('Use this section to delegate authority to maintain this vocabulary to a specific role.'),
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'#collapsible' => true,
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'#collapsed' => false,
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'#weight' => 1,
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);
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$form['taxonomy_delegate']['roles'] = array(
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'#type' => 'select',
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'#title' => t('Choose the role(s) that may administer this vocabulary.'),
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'#options' => $roles,
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'#multiple' => true,
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'#default_value' => $defaults,
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'#description' => t('You may choose more than one by using the CTRL key.'),
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);
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$form['#submit'][] = 'taxonomy_delegate_vocabulary_submit';
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// Make some room for me.
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$form[submit]['#weight'] = 5;
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$form[delete]['#weight'] = 5;
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break;
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} // End switch.
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}
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/**
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*
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*/
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function taxonomy_delegate_vocabulary_submit($form, &$form_state) {
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// If there are some already, delete all roles currently associated with this vocabulary.
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if ($form_state['values']['delete_current']) {
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db_query('DELETE FROM {taxonomy_delegate} WHERE vid=%d', $form_state['values']['vid']);
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if ($form_state['values']['op'] == 'Delete') {
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return 'admin/content/taxonomy/delegate';
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}
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}
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// Add the new ones into the table. Key=0 means 'none'.
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if (!isset($form_state['values']['roles'][0])) {
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foreach ($form_state['values']['roles'] as $key => $value) {
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$insert = db_query('INSERT INTO {taxonomy_delegate} (vid, rid) VALUES(%d, %d)', $form_state['values']['vid'], $key);
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if (!$insert) {
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drupal_set_message("Inserted failed for role: $key", 'warning');
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}
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}
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}
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}
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/**
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*
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*/
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function taxonomy_delegate_admin($op=null, $vid=null) {
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$destination = drupal_get_destination();
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$output = '';
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$roles = _taxonomy_delegate_get_roles();
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// Is there an op parameter (call back)?
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if (is_null($op)) {
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// Not a call back, so build the list.
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$vocabularies = taxonomy_get_vocabularies();
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$rows = array();
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foreach ($vocabularies as $vocabulary) {
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$role_list = array();
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foreach (_taxonomy_delegate_get_delegates($vocabulary->vid) as $key => $rid) {
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$role_list[] = $roles[$rid];
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}
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if (count($role_list)) {
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$role_names = implode('<br/>', $role_list);
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}
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else {
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$role_names = 'None';
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}
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$rows[] = array(
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array('data' => $vocabulary->name, 'header' => true),
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$role_names,
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l(t('edit'), 'admin/content/taxonomy/edit/vocabulary/'. $vocabulary->vid,
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array('query' => $destination)),
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);
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}
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if (!empty($rows)) {
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$header[] = t('Vocabulary');
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$header[] = t('Roles');
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$header[] = t('Op');
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$output .= theme('table', $header, $rows, array('cellpadding' => '5', 'cellspacing' => '5'));
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}
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else { $output .= 'No vocabularies were found.'; }
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return $output;
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}
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else {
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// This is a call back to manage the list.
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return drupal_get_form('taxonomy_delegate_edit_form', $vid);
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}
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}
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/**
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*
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*/
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function taxonomy_delegate_edit_form($vid) {
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$form = array();
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$roles = _taxonomy_delegate_get_roles();
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unset($roles[1]); // Remove anonymous role.
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$defaults = _taxonomy_delegate_get_delegates($vid);
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$vocab = taxonomy_vocabulary_load($vid);
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$form['vid'] = array(
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'#type' => 'value',
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'#value' => $vid,
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);
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$form['delete_current'] = array(
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'#type' => 'value',
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'#value' => count($defaults),
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);
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$form['vocab'] = array(
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'#type' => 'fieldset',
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'#title' => '<big>'. $vocab->name ." (vid $vid)</big>",
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'#description' => '<h2>'. $vocab->description .'</h2>',
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'#collapsible' => true,
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'#collapsed' => false,
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'#prefix' => '<br/>',
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);
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$form['vocab']['roles'] = array(
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'#type' => 'select',
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'#title' => t('Choose the role(s) that may administer this vocabulary.'),
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'#options' => $roles,
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'#multiple' => true,
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'#default_value' => $defaults,
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'#description' => t('You may choose more than one by using the CTRL key.'),
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);
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// Add the buttons.
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$form['update']['attach'] = array(
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'#type' => 'submit',
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'#value' => t('Update'),
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'#weight' => 3
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);
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// This is only needed if there is a previous selection.
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if (!empty($defaults)) {
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$form['delete']['attach'] = array(
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'#type' => 'submit',
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'#value' => t('Delete'),
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'#weight' => 4
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);
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}
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$form['#redirect'] = 'admin/content/taxonomy/delegate';
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return $form;
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}
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/**
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*
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*/
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function taxonomy_delegate_edit_form_submit($form, &$form_state) {
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// If there are some already, delete all roles currently associated with this vocabulary.
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if ($form_state['values']['delete_current']) {
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db_query('DELETE FROM {taxonomy_delegate} WHERE vid=%d', $form_state['values']['vid']);
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if ($form_state['values']['op'] == 'Delete') {
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return 'admin/content/taxonomy/delegate';
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}
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}
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// Add the new ones into the table.
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if (count($form_state['values']['roles'])) {
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foreach ($form_state['values']['roles'] as $key => $value) {
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$insert = db_query('INSERT INTO {taxonomy_delegate} (vid, rid) VALUES(%d, %d)', $form_state['values']['vid'], $key);
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if (!$insert) {
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drupal_set_message("Inserted failed for role: $key", 'warning');
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}
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}
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}
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}
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/**
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*
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*/
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function taxonomy_delegate_mycategories($op=null, $vid=null) {
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global $user;
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$output = '<br/>';
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// In the op checking sections below, we have to make sure we should be here to help prevent
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// cheaters who might be typing in the paths to avoid the legitimate security.
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if ($op == 'list') { // Do list stuff.
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$vocabs = _taxonomy_delegate_my_vocabularies();
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if (isset($vocabs[$vid])) {
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return taxonomy_delegate_overview_terms($vid);
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}
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else {
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drupal_access_denied();
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return;
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}
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}
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if ($op == 'add') { // Do add stuff.
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$vocabs = _taxonomy_delegate_my_vocabularies();
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if (isset($vocabs[$vid])) {
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return drupal_get_form('taxonomy_form_term', $vid);
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}
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else {
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drupal_access_denied();
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return;
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}
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}
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if ($op == 'edit') { // Do edit stuff on a term (the $vid paramter is actually the tid).
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$tid = $vid;
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$term = taxonomy_get_term($tid);
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$vid = $term->vid;
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$vocabs = _taxonomy_delegate_my_vocabularies();
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if (isset($vocabs[$vid])) {
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return taxonomy_admin_term_edit($tid);
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}
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else {
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drupal_access_denied();
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return;
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}
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}
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$vocabs = _taxonomy_delegate_my_vocabularies();
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foreach ($vocabs as $vid => $name) {
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$rows[] = array('<big>'. $name .'</big>',
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' '. l(t('List terms'), 'category_admin/list/'. $vid),
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' '. l(t('Add terms'), 'category_admin/add/'. $vid),
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);
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}
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$header = array(
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t('Category'),
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array('data' => t('Operations'), 'colspan' => '2'),
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);
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$attributes = array(
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'cellpadding' => '10',
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'cellspacing' => '10',
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);
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$output .= theme('table', $header, $rows, $attributes);
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return $output;
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}
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/**
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* Display a tree of all the terms in a vocabulary, with options to edit each one.
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* Lifted from Taxonomy module.
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*/
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function taxonomy_delegate_overview_terms($vid) {
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$destination = drupal_get_destination();
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$use_image = module_exists('taxonomy_image');
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$vocabulary = taxonomy_vocabulary_load($vid);
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if (!$vocabulary) {
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return drupal_not_found();
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}
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drupal_set_title(t('Terms for ') . check_plain($vocabulary->name));
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$output = '<br/>';
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if ($vocabulary->tags) {
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$output .= '<p>'. t('This is a freetagging vocabulary.') .'</p>';
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| 364 |
// We are not calling taxonomy_get_tree because that might fail with a lot of tags in a freetagging vocabulary.
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$results = db_rewrite_sql('SELECT t.*, h.parent FROM {term_data} t INNER JOIN {term_hierarchy} h ON t.tid = h.tid WHERE t.vid = %d ORDER BY weight, name', 't', 'tid', $vid);
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while ($term = db_fetch_object($results)) {
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$rows[] = array(
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| 369 |
($use_image ? taxonomy_image_display($term->tid) : null),
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l($term->name, 'taxonomy/term/'. $term->tid),
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$term->description,
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l(t('edit'), 'category_admin/edit/'. $term->tid, array(), $destination),
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| 373 |
);
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}
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}
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else {
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| 377 |
$tree = taxonomy_get_tree($vocabulary->vid);
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| 378 |
foreach ($tree as $term) {
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| 379 |
if ($use_image) {
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| 380 |
$taxo_image = taxonomy_image_display($term->tid);
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| 381 |
}
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| 382 |
else {
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| 383 |
$taxo_image = null;
|
| 384 |
}
|
| 385 |
$rows[] = array(
|
| 386 |
$taxo_image,
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| 387 |
str_repeat('--', $term->depth) .' '. l($term->name, "taxonomy/term/$term->tid"),
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| 388 |
$term->description,
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| 389 |
l(t('edit'), 'category_admin/edit/'. $term->tid, array('query' => $destination)),
|
| 390 |
);
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| 391 |
}
|
| 392 |
}
|
| 393 |
|
| 394 |
if (!$rows) {
|
| 395 |
$rows[] = array(array('data' => t('No terms available.'), 'colspan' => '5'));
|
| 396 |
}
|
| 397 |
$header = array(
|
| 398 |
($use_image ? t('Image') : null),
|
| 399 |
t('Name'), t('Description'), t('Operations'),
|
| 400 |
);
|
| 401 |
|
| 402 |
$output .= theme('table', $header, $rows, array('id' => 'taxonomy'));
|
| 403 |
|
| 404 |
return $output;
|
| 405 |
}
|
| 406 |
|
| 407 |
// ******************************
|
| 408 |
// ***** Helper Functions *****
|
| 409 |
// ******************************
|
| 410 |
|
| 411 |
/**
|
| 412 |
*
|
| 413 |
*/
|
| 414 |
function _taxonomy_delegate_my_vocabularies() {
|
| 415 |
global $user;
|
| 416 |
$list = array();
|
| 417 |
foreach ($user->roles as $rid => $name) {
|
| 418 |
$list[] = $rid;
|
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}
|
| 420 |
$result = db_query('SELECT DISTINCT(vid) FROM {taxonomy_delegate} WHERE rid IN (%s)', implode(', ', $list));
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$vocabs = array();
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| 423 |
while ($vocab = db_fetch_array($result)) {
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| 424 |
$vid = $vocab['vid'];
|
| 425 |
$voc = taxonomy_vocabulary_load($vid);
|
| 426 |
$vocabs[$vid] = $voc->name;
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| 427 |
}
|
| 428 |
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| 429 |
return $vocabs;
|
| 430 |
}
|
| 431 |
|
| 432 |
/**
|
| 433 |
* This helper function gets a keyed array of the roles and their names.
|
| 434 |
*/
|
| 435 |
function _taxonomy_delegate_get_roles($add_none = false) {
|
| 436 |
$result = db_query('SELECT rid, name FROM {role}');
|
| 437 |
$roles = array();
|
| 438 |
if ($add_none) {
|
| 439 |
$roles[0] = '<none>';
|
| 440 |
}
|
| 441 |
|
| 442 |
while ($row = db_fetch_array($result)) {
|
| 443 |
$roles[$row['rid']] = $row['name'];
|
| 444 |
}
|
| 445 |
|
| 446 |
if (empty($roles)) {
|
| 447 |
drupal_set_message('No roles found.', 'warning');
|
| 448 |
}
|
| 449 |
|
| 450 |
return $roles;
|
| 451 |
}
|
| 452 |
|
| 453 |
/**
|
| 454 |
* This helper function gets an array of the currently allowed delegate roles.
|
| 455 |
*/
|
| 456 |
function _taxonomy_delegate_get_delegates($vid) {
|
| 457 |
$result = db_query('SELECT * FROM {taxonomy_delegate} WHERE vid=%d', $vid);
|
| 458 |
$roles = array();
|
| 459 |
|
| 460 |
while ($row = db_fetch_array($result)) {
|
| 461 |
$roles[] = $row['rid'];
|
| 462 |
}
|
| 463 |
|
| 464 |
return $roles;
|
| 465 |
}
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