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<?php
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// $Id: translatable.node.inc,v 1.6 2008/09/12 17:01:11 smk Exp $
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/**
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* @file
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* Provides translation services for nodes.
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*/
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/**
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* Implementation of hook_menu().
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*/
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function translatable_node_menu($may_cache) {
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$items = array();
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if (!$may_cache) {
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if (arg(0) == 'node' && is_numeric(arg(1))) {
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$node = node_load(arg(1));
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if (translatable_content_type_enabled($node->type)) {
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// Add link to translation overview page to local tasks.
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$items[] = array(
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'path' => 'node/'. $node->nid .'/translations',
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'title' => t('Translations'),
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'callback' => 'translatable_node_node_page',
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'access' => user_access('access translatable'),
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'type' => MENU_LOCAL_TASK,
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'weight' => 3,
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);
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if (arg(2) == 'edit' && !arg(3) && $node->tnid != $node->nid) {
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// An existing destination url would override our path, pass it
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// through instead.
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$destination = isset($_REQUEST['destination']) ? 'destination='. urlencode($_REQUEST['destination']) : NULL;
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unset($_REQUEST['destination']);
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drupal_goto('node/'. $node->tnid .'/edit/translation/'. $node->language, $destination);
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}
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if (arg(3) == 'translation' && translatable_validate_locale(arg(4))) {
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$items[] = array(
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'path' => 'node/'. $node->nid .'/edit/translation/'. arg(4),
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'title' => t('Edit translation'),
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'callback' => 'translatable_node_edit_translation',
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'callback arguments' => array($node->type .'_node_form', $node, arg(4)),
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'access' => user_access('access translatable') && node_access('update', $node),
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'type' => MENU_CALLBACK,
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);
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}
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}
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}
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}
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return $items;
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}
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/**
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* Menu callback; presents the translation editing form, or redirects to delete confirmation.
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*/
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function translatable_node_edit_translation($form_id, $node, $lang) {
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if ($_POST['op'] == t('Delete')) {
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// Redirect to node/%/delete to make the tabs disappear, passing through
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// destination.
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if (isset($_REQUEST['destination'])) {
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$destination = drupal_get_destination();
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unset($_REQUEST['destination']);
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}
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// @todo This looks wrong (we'd like to delete the translation, not the source).
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drupal_goto('node/'. $node->nid .'/delete', isset($destination) ? $destination : NULL);
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}
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$languages = translatable_available_languages();
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$adminlocale = translatable_set_adminlocale($lang, FALSE);
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drupal_set_title(t('%language translation of %title', array('%language' => $languages[$adminlocale], '%title' => $node->title)));
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// Check whether we're creating a new translation or editing an existing one.
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$translation = translatable_find('node', "tnid = $node->nid AND language = '$lang'");
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if (!$translation) {
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$node->is_new = TRUE;
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}
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else {
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$node = node_load(key($translation));
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}
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return translatable_get_form($form_id, $node);
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}
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/**
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* Implementation of hook_nodeapi().
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*/
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function translatable_nodeapi(&$node, $op, $teaser, $page) {
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if (!translatable_content_type_enabled($node->type)) {
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return;
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}
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switch ($op) {
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case 'load':
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// Add translation properties to the node.
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$properties = translatable_findbyid('node', $node->nid);
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if ($properties) {
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$extra = array(
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'language' => $properties['language'],
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'tnid' => $properties['tnid'],
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'translatable_node_any' => $properties['any'],
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);
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}
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else {
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// Legacy node which hasn't been enabled for translation before.
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// Set language to the default site language.
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$extra = array(
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'language' => translatable_get_defaultcontentlocale(),
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'tnid' => $node->nid,
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);
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if (!empty($node->nid)) {
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$extra['translatable_node_any'] = 0;
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}
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}
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return $extra;
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case 'prepare':
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if (isset($node->language, $node->tnid)) {
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translatable_node_update_fields($node);
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}
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// If a completely new node is created, we need to assign the language.
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if (!isset($node->nid, $node->tnid, $node->language)) {
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$node->language = translatable_get_adminlocale();
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}
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break;
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case 'submit':
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// If tnid of the processed node is equal to the node's nid, this is a source
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// node. We then fetch and update all translations of this node instead.
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if ($node->nid && $node->nid == $node->tnid) {
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$target_nodes = translatable_find('node', "tnid = $node->nid AND nid != $node->nid");
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foreach (array_keys($target_nodes) as $nid) {
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$target_node = node_load($nid);
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translatable_node_update_fields($target_node);
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node_save($target_node);
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}
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}
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break;
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case 'insert':
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// For new translations: add node to the global path index, so modules
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// like pathauto are able to find a menu path for it.
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if (!empty($node->tnid)) {
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global $_menu;
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$node_default_locale = translatable_find('node', 'tnid = '. (int)$node->tnid ." AND language = '". translatable_get_default_locale() ."'");
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if ($node_default_locale) {
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$_menu['path index']['node/'. $node->nid] = $_menu['path index']['node/'. key($node_default_locale)];
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}
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}
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// If a completely new node is created, we need to assign the language.
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if (!isset($node->tnid, $node->language)) {
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$node->tnid = $node->nid;
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$node->language = translatable_get_adminlocale();
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}
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// Fall through to save translation.
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case 'update':
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if (isset($node->language)) {
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// For new or legacy source nodes: set parent nid to ourself.
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if (empty($node->tnid)) {
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$node->tnid = $node->nid;
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}
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$translatable_node = array(
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'nid' => $node->nid,
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'tnid' => $node->tnid,
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'language' => $node->language,
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'any' => (int)$node->translatable_node_any,
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);
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translatable_save('node', $translatable_node);
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}
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break;
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case 'delete':
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translatable_delete('node', $node->nid);
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break;
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}
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}
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/**
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* Implementation of hook_form_alter().
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*
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* If the content type is enabled for translation, add a checkbox to allow
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* displaying the content for all languages.
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*/
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function translatable_node_form_alter($form_id, &$form) {
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if (!isset($form['type']) || $form['type']['#value'] .'_node_form' != $form_id || !translatable_content_type_enabled($form['type']['#value'])) {
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return;
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}
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// If we are on node/#/edit (a source node), our translation callback has
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// not been executed, so we need to ensure that the proper translation
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// language is set.
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if (arg(3) != 'translation') {
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translatable_set_adminlocale($form['#node']->language, FALSE);
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}
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// Enable translation language block.
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translatable_adminlocale_formselect($form_id, $form);
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// If configured, enable any language by default for new nodes.
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if (!isset($form['#node']->translatable_node_any)) {
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$form['#node']->translatable_node_any = variable_get('translatable_default_content_any', FALSE) ? 1 : 0;
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}
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$form['translatable_node_any'] = array(
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'#type' => 'checkbox',
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'#title' => t('Display this content in any language'),
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'#default_value' => $form['#node']->translatable_node_any,
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'#weight' => 0,
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);
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// Disable any language property if it is already set for another language.
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$anynode = translatable_find('node', 'tnid = '. (int)$form['#node']->tnid .' AND nid != '. (int)$form['#node']->nid .' AND any = 1', FALSE);
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if ($anynode) {
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$form['translatable_node_any']['#disabled'] = TRUE;
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$form['translatable_node_any']['#description'] = t('Another translation is currently displayed in any language. <a href="!any">Click here to switch to this translation.</a>', array('!any' => url('node/'. $anynode['nid'] .'/edit')));
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}
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// Remove certain fields when creating or editing a new node and we're not
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// in the default locale. Otherwise, contents of these fields would be
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// stored in the default locale while the node is stored in the current
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// admin locale.
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// @todo Taxonomy free tagging
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if (translatable_get_default_locale() != translatable_get_adminlocale()) {
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$form['menu']['#access'] = FALSE;
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}
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// Add parent node id, needed in nodeapi op 'submit'.
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$form['tnid'] = array(
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'#type' => 'hidden',
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'#value' => $form['#node']->tnid,
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);
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}
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/**
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* Callback invoked by translatable_get_form(), right after hook_form_alter().
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*
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* Prepopulates a node form with source content values and disables
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* untranslatable form fields.
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*/
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function translatable_node_alter_form($form_id, &$form) {
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if (!isset($form['type']) || $form['type']['#value'] .'_node_form' != $form_id) {
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return;
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}
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// Creating a new translation requires more work.
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if ($form['#node']->is_new) {
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global $user;
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// Load the source node.
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$source_node = node_load(arg(1));
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/*
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// Let 3rd party modules prepare certain form fields that need extra treatment.
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$_form = array();
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foreach (module_implements('translatable_prepare_node') as $module) {
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$function = $module .'_translatable_prepare_node';
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$result = $function($source_node);
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if (isset($result) && is_array($result)) {
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$_form = array_merge($_form, $result);
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}
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}
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*/
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// Reset some values to defaults.
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$source_node->nid = NULL;
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$form['nid']['#value'] = NULL;
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$source_node->vid = NULL;
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$form['vid']['#value'] = NULL;
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$source_node->uid = $user->uid;
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$form['uid']['#value'] = $user->uid;
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$source_node->created = '';
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$form['created']['#value'] = '';
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if (isset($source_node->menu)) {
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$source_node->menu = NULL;
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}
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if (isset($source_node->path)) {
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$source_node->path = NULL;
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}
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// Replace the stored node in the form.
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$form['#node'] = $form['#parameters'][1] = $source_node;
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// Switch language
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translatable_set_adminlocale(arg(4), FALSE);
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// Generate a clean translation form and merge values from the source node form.
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$new_node = array(
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'uid' => $user->uid,
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'name' => $user->name,
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'type' => $source_node->type,
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'tnid' => $source_node->tnid,
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// @todo Get rid of arg(). Ideally, this would be already set in $form[#node]
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'language' => arg(4),
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);
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$new_form = translatable_retrieve_form($form_id, $new_node);
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$new_form['#is_new'] = TRUE;
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// Give modules a chance to assign #translatable after all form alterations
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// are done. This is needed, because modules like CCK fieldgroup perform
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// excessive alterations.
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foreach (module_implements('translatable_form_alter') as $module) {
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$function = $module .'_translatable_form_alter';
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$function($form_id, $new_form);
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}
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translatable_filter_form($new_form, $form);
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$form = $new_form;
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// @doc Why?
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$form['#node']->translatable_node_any = 0;
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}
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else {
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// Editing a translation: load the source node.
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$parent_node = node_load($form['#node']->tnid);
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// Generate the parent editing form and use it to filter current values.
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$parent_form = translatable_retrieve_form($form_id, $parent_node);
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// Give modules a chance to assign #translatable after all form alterations
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// are done. This is needed, because modules like CCK fieldgroup perform
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// excessive alterations.
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foreach (module_implements('translatable_form_alter') as $module) {
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$function = $module .'_translatable_form_alter';
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$function($form_id, $form);
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}
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translatable_filter_form($form, $parent_form);
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}
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// Set parent node id.
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$form['tnid'] = array(
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'#type' => 'hidden',
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'#value' => $form['#node']->tnid,
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);
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// Determine and set target language for new translations.
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| 328 |
if (!isset($form['#node']->language)) {
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$form['#node']->language = translatable_get_adminlocale();
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}
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$form['language'] = array(
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'#type' => 'hidden',
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'#default_value' => $form['#node']->language,
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);
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| 336 |
// Ensure that untranslatable fields are not altered.
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| 337 |
$form['#submit'] = array('translatable_filter_form_submit' => array($form)) + (array)$form['#submit'];
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| 338 |
}
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/**
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| 341 |
* Updates fields in translations of a node.
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| 342 |
*
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| 343 |
* If a node translation is saved, all untranslatable values have to be
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| 344 |
* copied from the source node into the translation node.
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| 345 |
*
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| 346 |
* If a source node is saved, all translations of this node have to be
|
| 347 |
* updated to synchronize untranslatable values.
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| 348 |
*
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| 349 |
* @param &$node
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* A node object to process.
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| 351 |
*
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| 352 |
* @todo Update to translatable_get_translatable_fields().
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*/
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| 354 |
function translatable_node_update_fields(&$node) {
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| 355 |
if ($node->nid == $node->tnid) {
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| 356 |
return;
|
| 357 |
}
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| 358 |
// Retrieve a list of all node fields that have to be updated.
|
| 359 |
$update_fields = module_invoke_all('translatable_fields', 'node_form');
|
| 360 |
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| 361 |
// Load field values from parent node.
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| 362 |
$source_node = node_load($node->tnid);
|
| 363 |
|
| 364 |
// Update fields in translated node.
|
| 365 |
foreach ($source_node as $field => $value) {
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| 366 |
if (isset($update_fields[$field])) {
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| 367 |
$node->$field = $value;
|
| 368 |
}
|
| 369 |
}
|
| 370 |
}
|
| 371 |
|
| 372 |
/**
|
| 373 |
* Implementation of hook_link_alter().
|
| 374 |
*/
|
| 375 |
function translatable_link_alter(&$node, &$links) {
|
| 376 |
if ($node->language != translatable_get_locale()) {
|
| 377 |
foreach ($links as $id => $link) {
|
| 378 |
if (isset($links[$id]['query'])) {
|
| 379 |
$links[$id]['query'] = $links[$id]['query'] .'&locale='. $node->language;
|
| 380 |
}
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| 381 |
else {
|
| 382 |
$links[$id]['query'] = 'locale='. $node->language;
|
| 383 |
}
|
| 384 |
}
|
| 385 |
}
|
| 386 |
}
|
| 387 |
|
| 388 |
/**
|
| 389 |
* Intercepts all the calls for the page.
|
| 390 |
*/
|
| 391 |
function translatable_node_node_page() {
|
| 392 |
$args = func_get_args();
|
| 393 |
$op = array_shift($args);
|
| 394 |
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| 395 |
return translatable_page_translations($op, $args);
|
| 396 |
}
|
| 397 |
|
| 398 |
/**
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| 399 |
* Get the id of a node that is a translation of a given node in a given language.
|
| 400 |
*
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| 401 |
* @todo Make this function generic and move it to translatable.database.inc.
|
| 402 |
*
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| 403 |
* @param $nid
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* The parent node id.
|
| 405 |
* @param $_locale
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| 406 |
* The locale to search for.
|
| 407 |
*
|
| 408 |
* @return
|
| 409 |
* The corresponding translated node's nid or FALSE if no translation exists.
|
| 410 |
*/
|
| 411 |
function translatable_node_get_localizednid($nid, $locale) {
|
| 412 |
$translatable_node = translatable_findbyid('node', $nid);
|
| 413 |
if ($locale != $translatable_node['language']) {
|
| 414 |
if ($tnid = $translatable_node['tnid']) {
|
| 415 |
$translatable_node = translatable_find('node', 'tnid = '. (int)$tnid ." AND language = '". $locale ."'", FALSE);
|
| 416 |
return $translatable_node['nid'];
|
| 417 |
}
|
| 418 |
}
|
| 419 |
return FALSE;
|
| 420 |
}
|
| 421 |
|
| 422 |
function translatable_node_get_contentlocale($alias) {
|
| 423 |
$path = drupal_get_normal_path($alias);
|
| 424 |
$args = explode('/', $path);
|
| 425 |
$language = '';
|
| 426 |
if ($args[0] == 'node' && is_numeric($args[1])) {
|
| 427 |
$translatable_node = translatable_findbyid('node', $args[1]);
|
| 428 |
$language = $translatable_node['language'];
|
| 429 |
}
|
| 430 |
return $language;
|
| 431 |
}
|
| 432 |
|
| 433 |
function translatable_node_existscontentlocale($alias, $language) {
|
| 434 |
$path = drupal_get_normal_path($alias);
|
| 435 |
$args = explode('/', $path);
|
| 436 |
$nid = '';
|
| 437 |
if ($args[0] == 'node' && is_numeric($args[1])) {
|
| 438 |
$translatable_node = translatable_findbyid('node', $args[1]);
|
| 439 |
if ($tnid = $translatable_node['tnid']) {
|
| 440 |
$translatable_node = translatable_find('node', 'tnid = '. (int)$tnid ." AND language = '". $language ."'", FALSE);
|
| 441 |
$nid = $translatable_node['nid'];
|
| 442 |
}
|
| 443 |
}
|
| 444 |
if ($nid) {
|
| 445 |
return TRUE;
|
| 446 |
}
|
| 447 |
else {
|
| 448 |
return FALSE;
|
| 449 |
}
|
| 450 |
}
|
| 451 |
|
| 452 |
/**
|
| 453 |
* Temporary hard-coded #translatable field properties.
|
| 454 |
*/
|
| 455 |
function translatable_translatable_form_alter($form_id, &$form) {
|
| 456 |
// Synchronize general node fields and properties.
|
| 457 |
$form['title']['#translatable'] = TRUE;
|
| 458 |
if (!empty($form['body_filter'])) {
|
| 459 |
$form['body_filter']['#translatable'] = TRUE;
|
| 460 |
}
|
| 461 |
$form['options']['#translatable'] = TRUE;
|
| 462 |
|
| 463 |
// Synchronize menu options for nodes; we default to Localizer (not i18n)
|
| 464 |
// translations currently, so menu items are translated elsewhere. Since
|
| 465 |
// Drupal assumes the default locale as default language for all menu items,
|
| 466 |
// menu items can only be added or edited in the default language.
|
| 467 |
if (translatable_get_default_locale() != translatable_get_adminlocale()) {
|
| 468 |
$form['menu']['#translatable'] = FALSE;
|
| 469 |
}
|
| 470 |
|
| 471 |
// Synchronize comment options from source.
|
| 472 |
if (module_exists('comment')) {
|
| 473 |
$form['comment_settings']['#translatable'] = TRUE;
|
| 474 |
}
|
| 475 |
|
| 476 |
// Disable taxonomy fields; we default to Localizer (not i18n) translations
|
| 477 |
// currently, so taxonomies are translated elsewhere.
|
| 478 |
if (module_exists('taxonomy')) {
|
| 479 |
foreach (element_children($form['taxonomy']) as $key => $vocab) {
|
| 480 |
$form['taxonomy'][$vocab]['#translatable'] = FALSE;
|
| 481 |
}
|
| 482 |
}
|
| 483 |
}
|
| 484 |
|
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