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<?php
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// $Id: revision_moderation.module,v 1.48 2008/12/24 15:24:01 add1sun Exp $
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/**
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* @file
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* Allows moderation of node revisions while existing revisions stay visible.
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*/
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// Actions module support.
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include_once drupal_get_path('module', 'revision_moderation') .'/revision_moderation_actions.inc';
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/**
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* Implementation of hook_menu().
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*/
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function revision_moderation_menu() {
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$items = array();
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// Admin menu
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$items['admin/content/node/revisions'] = array(
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'title' => t('Pending revisions'),
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'page callback' => 'revision_moderation_pending_revisions_admin',
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'access arguments' => array('administer nodes'),
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'type' => MENU_LOCAL_TASK,
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);
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// Admin menu
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$items['admin/settings/revision_moderation'] = array(
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'title' => t('Revision moderation'),
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'page callback' => 'drupal_get_form',
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'page arguments' => array('revision_moderation_settings'),
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'description' => t('Configure revision publishing options.'),
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'access arguments' => array('administer nodes'),
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);
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// Callback to allow users to edit revisions.
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$items['node/%node/revisions/%/edit'] = array(
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'title' => t('Edit revision'),
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'load arguments' => array(3),
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'page callback' => 'revision_moderation_edit',
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'page arguments' => array(1),
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'access callback' => '_node_revision_access',
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'access arguments' => array(1, 'update'),
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'file' => 'node.pages.inc',
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'file path' => drupal_get_path('module', 'node'),
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'type' => MENU_CALLBACK,
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);
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// Callback to allow users to publish revisions directly.
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$items['node/%node/revisions/%/publish'] = array(
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'title' => t('Publish revision'),
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'load arguments' => array(3),
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'page callback' => 'drupal_get_form',
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'page arguments' => array('revision_moderation_publish_confirm', 1),
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'access callback' => '_node_revision_access',
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'access arguments' => array(1, 'update'),
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'type' => MENU_CALLBACK,
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);
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return $items;
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}
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/**
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* Menu permission callback.
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*/
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function revision_moderation_admin_perm($nid) {
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$node = node_load($nid);
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$access = user_access('administer nodes') || (user_access('view revisions') && node_access('update', $node));
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return $access;
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}
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/**
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* Menu callback; admin settings page.
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*/
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function revision_moderation_settings() {
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$form['revision_moderation_exempt'] = array(
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'#type' => 'checkbox',
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'#title' => t('Exempt administrators from revision moderation'),
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'#default_value' => variable_get('revision_moderation_exempt', 1),
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'#description' => t('With this option enabled, users with the "administer nodes" privilege will bypass the moderation system, and their revisions will be published immediately.'),
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);
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return system_settings_form($form);
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}
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/**
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* Implementation of hook_form_alter().
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*/
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function revision_moderation_form_alter(&$form, $form_state, $form_id) {
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// On node edit forms, add in the "New revisions in moderation" option.
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if (isset($form['#id']) && $form['#id'] == 'node-form') {
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$default_value = in_array('revision_moderation', variable_get("node_options_{$form['type']['#value']}", array('status', 'promote')));
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if ($form['nid']['#value']) {
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$result = db_result(db_query('SELECT revision_moderation FROM {revision_moderation} WHERE nid = %d', $form['nid']['#value']));
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if ($result !== FALSE) {
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$default_value = $result;
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}
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}
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// Only show the checkbox if user has 'administer nodes' privileges.
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if (!empty($node->revision) || user_access('administer nodes')) {
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$form['revision_information']['revision_moderation'] = array(
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'#type' => 'checkbox',
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'#title' => t('New revisions in moderation'),
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'#default_value' => $default_value,
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);
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}
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else {
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$form['revision_moderation'] = array(
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'#type' => 'value',
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'#value' => $default_value,
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);
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}
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}
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// Also add option to node settings form
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elseif ($form_id == 'node_type_form') {
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$form['workflow']['node_options']['#options']['revision_moderation'] = t('New revisions in moderation');
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}
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}
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/**
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* Implementation of hook_nodeapi().
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*/
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function revision_moderation_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
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switch ($op) {
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case 'insert':
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// Store revision moderation setting of this node.
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drupal_write_record('revision_moderation', $node);
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break;
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case 'update':
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// Update revision moderation setting of this node.
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drupal_write_record('revision_moderation', $node, 'nid');
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break;
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case 'delete':
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// Delete record from revision_moderation table when node is deleted.
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db_query('DELETE FROM {revision_moderation} WHERE nid = %d', $node->nid);
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break;
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case 'load':
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// Set a revision_moderation property which can be checked later.
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$node->revision_moderation = db_result(db_query('SELECT revision_moderation FROM {revision_moderation} WHERE nid = %d', $node->nid));
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break;
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case 'view':
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// Cannot use _node_revision_access() here, it's static cached with 1 op
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$access_update = user_access('revert revisions');
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$access_delete = user_access('delete revisions');
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// Display more descriptive message at the top of node revision views, including operations
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// that the current user has available to them.
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$current_vid = db_result(db_query('SELECT vid FROM {node} WHERE nid = %d', $node->nid));
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if ($node->vid != $current_vid) {
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$links = array(); // Array of links to show along with the message.
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if ($access_update) {
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// Add a link directly to the diff if we have Diff module installed.
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if (module_exists('diff')) {
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if ($node->vid > $current_vid) {
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$difflink = "node/$node->nid/revisions/view/$current_vid/$node->vid";
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}
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else {
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$difflink = "node/$node->nid/revisions/view/$node->vid/$current_vid";
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}
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$links[] = l(t('Compare revisions'), $difflink);
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}
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$links[] = l(t('Edit revision'), "node/$node->nid/revisions/$node->vid/edit");
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// If this revision is old, show an option to revert to it.
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// Otherwise, show an option to publish it.
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if ($node->vid < $current_vid) {
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$links[] = l(t('Revert to revision'), "node/$node->nid/revisions/$node->vid/revert");
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}
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else {
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$links[] = l(t('Publish revision'), "node/$node->nid/revisions/$node->vid/publish");
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}
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}
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if ($access_delete) {
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$links[] = l(t('Delete revision'), "node/$node->nid/revisions/$node->vid/delete");
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}
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// Get username for the revision rather than the original node.
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$revision_author = user_load($node->revision_uid);
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drupal_set_message(t('You are currently viewing a revision of this post created on @date by !author.', array('@date' => format_date($node->revision_timestamp, 'small'), '!author' => theme('username', $revision_author))) . theme('item_list', $links));
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}
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elseif ($node->revision_moderation == 1 && !$teaser) {
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// Notify admin if a node has pending revisions.
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if ($access_update && arg(2) != 'revisions' && revision_moderation_get_node_pending_revisions($node->nid)) {
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drupal_set_message(t('This post has one or more pending revisions: <a href="@list">view list of revisions</a>.', array('@list' => url("node/$node->nid/revisions"))));
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}
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}
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break;
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}
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// Only do this logic for non-admin users on nodes with revision moderation
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// turned on.
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// And not editing a chose revision
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if ($node->nid && $node->revision_moderation == 1 && arg(2) != 'revisions'
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&& (!user_access('administer nodes') || !variable_get('revision_moderation_exempt', 1))) {
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switch ($op) {
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case 'prepare':
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// If user has a pending revision for this node, load the latest version of
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// it instead.
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if ($revisions = revision_moderation_get_node_pending_revisions($node->nid)) {
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global $user;
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foreach ($revisions as $revision) {
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if ($revision->uid == $user->uid) {
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drupal_set_message(t('Editing your latest revision, which is still pending moderation.'));
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$node = node_load($node->nid, $revision->vid);
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break;
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}
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}
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}
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break;
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case 'presave':
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$current_vid = db_result(db_query('SELECT vid FROM {node} WHERE nid = %d', $node->nid));
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$node->original_node = node_load($node->nid, $current_vid);
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break;
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case 'update':
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if (isset($node->original_node)) {
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// Update node table's vid to the original value.
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db_query("UPDATE {node} SET vid = %d, title = '%s', status = %d, moderate = %d WHERE nid = %d", $node->original_node->vid, $node->original_node->title, $node->original_node->status, $node->original_node->moderate, $node->nid);
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drupal_set_message(t('Your changes have been submitted for moderation.'));
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}
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break;
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}
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}
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}
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/**
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* Implementation of hook_block().
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*/
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function revision_moderation_block($op = 'list', $delta = 0, $edit = array()) {
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if ($op == 'list') {
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$blocks[0]['info'] = t('Pending revisions');
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return $blocks;
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}
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elseif ($op == 'view') {
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$block = array();
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if (user_access('administer nodes')) {
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$output = '';
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$list = array();
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$nodes = revision_moderation_get_all_pending_revisions(10);
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if (count($nodes)) {
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foreach ($nodes as $node) {
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$list[] = l($node->title, "node/$node->nid/revisions/$node->vid/view");
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}
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$output .= theme('item_list', $list);
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$output .= '<p>'. l(t('View all pending revisions'), 'admin/content/node/revisions') .'</p>';
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}
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else {
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$output .= t('No pending revisions found.');
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}
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$block['subject'] = t('Pending revisions');
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$block['content'] = $output;
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}
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return $block;
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}
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}
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/**
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* Menu callback to display list of nodes with pending revisions.
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*/
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function revision_moderation_pending_revisions_admin() {
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return theme('revision_moderation_pending_revisions_admin');
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}
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/**
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* Implementation of hook_theme().
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*/
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function revision_moderation_theme() {
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return array(
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'revision_moderation_pending_revisions_admin' => array(
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'arguments' => array(),
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),
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);
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}
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/**
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* Displays list of nodes with pending revisions.
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*/
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function theme_revision_moderation_pending_revisions_admin() {
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$nodes = revision_moderation_get_all_pending_revisions(50);
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if (count($nodes)) {
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$header = array(
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t('Title'),
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t('Type'),
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t('Updated by'),
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t('Last updated'),
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);
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$rows = array();
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foreach ($nodes as $node) {
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$rows[] = array(
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l($node->title, "node/$node->nid/revisions"),
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check_plain(node_get_types('name', $node)),
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theme('username', user_load(array('uid' => $node->uid))),
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format_date($node->timestamp),
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);
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}
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return theme('table', $header, $rows);
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}
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else {
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return '<p>'. t('No pending revisions found.') .'</p>';
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}
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}
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/**
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* Retrieve list of all pending revisions.
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*
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* @param $limit
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* The number of pending revisions to retrieve.
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*/
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function revision_moderation_get_all_pending_revisions($limit) {
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// Obtain a list of nodes with revisions higher than current published revision.
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$sql = "SELECT n.nid, r.vid, n.type, r.title, r.body, r.uid, r.timestamp FROM {node} n INNER JOIN {node_revisions} r ON n.nid = r.nid WHERE r.vid > n.vid ORDER BY r.vid DESC LIMIT %d";
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$result = db_query($sql, $limit);
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$revisions = array();
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while ($revision = db_fetch_object($result)) {
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$revisions[$revision->nid] = $revision;
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}
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return $revisions;
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}
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/**
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* Retrieve list of all pending revisions for a given node.
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*
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* @param $nid
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* The node ID to retrieve.
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*/
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function revision_moderation_get_node_pending_revisions($nid) {
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// Obtain a list of revisions higher than current published revision for a given node.
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$sql = "SELECT n.nid, r.vid, r.uid FROM {node} n INNER JOIN {node_revisions} r ON n.nid = r.nid WHERE r.vid > n.vid AND n.nid = %d ORDER BY r.vid DESC";
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$result = db_query($sql, $nid);
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$revisions = array();
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while ($revision = db_fetch_object($result)) {
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$revisions[$revision->vid] = $revision;
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}
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return $revisions;
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}
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/**
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* Menu callback; edit revision.
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*/
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function revision_moderation_edit($node) {
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// Get username for the revision rather than the original node.
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$revision_author = user_load($node->revision_uid);
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drupal_set_message(t('You are currently editing a revision of this post created on @date by !author.', array('@date' => format_date($node->revision_timestamp, 'small'), '!author' => theme('username', $revision_author))));
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return drupal_get_form($node->type .'_node_form', $node);
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}
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/**
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* Returns a confirmation page for publishing a revision.
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*
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* @param $node
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* The node object for which revision is to be published.
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*/
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function revision_moderation_publish_confirm($form_state, $node) {
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$form['node_id'] = array('#type' => 'value', '#value' => $node->nid);
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$form['title'] = array('#type' => 'value', '#value' => $node->title);
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$form['revision'] = array('#type' => 'value', '#value' => $node->vid);
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$form['type'] = array('#type' => 'value', '#value' => $node->type);
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return confirm_form($form, t('Are you sure you want to publish this revision for %title?', array('%title' => $node->title)), 'node/'. $node->nid .'/revisions/'. $node->vid, t('Publishing this revision will make it public for all users.'), t('Publish'), t('Cancel'));
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}
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/**
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* Submission handler for the publish confirm form.
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* Publishes a revision directly.
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*/
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function revision_moderation_publish_confirm_submit($form, &$form_state) {
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$nid = $form_state['values']['node_id'];
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$title = $form_state['values']['title'];
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$vid = $form_state['values']['revision'];
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$type = $form_state['values']['type'];
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db_query("UPDATE {node} SET vid = %d, title = '%s' WHERE nid = %d", $vid, $title, $nid);
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// Clear the cache so an anonymous poster can see the changes
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cache_clear_all();
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drupal_set_message('The selected revision has been published.');
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watchdog('content', '@type: published %title revision %revision', array('@type' => t($type), '%title' => $title, '%revision' => $vid), WATCHDOG_NOTICE, l(t('view'), "node/$nid/revisions/$vid/view"));
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$form_state['redirect'] = 'node/'. $nid;
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}
|
Parent Directory
| 
Revision Log
| 
Revision Graph