i18n_node.inc

   1 <?php
   2 // $Id$
   3
   4 /**
   5  * Internationalization (i18n) module
   6  *
   7  * @author Jose A. Reyero, 2004
   8  *
   9  * Multilingual Nodes support
  10  */
  11
  12 // translation/node/id/lang
  13 // translation/term/id
  14
  15 function i18n_translation_page() {
  16   $op = $_POST['op'] ? $_POST['op'] : arg(1);
  17   $edit = $_POST['edit'];
  18
  19   switch ($op) {
  20     case 'node':
  21       print theme('page', i18n_translation_add(arg(2), arg(3)));
  22       break;
  23
  24      case t('Preview'):
  25       $edit = node_validate($edit);
  26       print theme('page', node_preview($edit), t('Preview'));
  27       break;
  28
  29     case t('Submit'):
  30       drupal_set_title(t('Submit'));
  31       print theme('page', node_submit($edit));
  32       break;
  33
  34     case t('Delete'):
  35       print theme('page', node_delete($edit), t('Delete'));
  36       break;
  37
  38     default:
  39       // print theme('page', node_page_default(), '');
  40   }
  41 }
  42
  43 function i18n_translation_add($nid, $lang) {
  44   $type = i18n_get_node_type($nid);
  45   return node_add($type);
  46 }
  47
  48 /**
  49  * This is the callback for the tab 'translations' for nodes
  50  */
  51 function i18n_node_translation() {
  52   $op = $_POST['op'];
  53   $edit = $_POST['edit'];
  54
  55   if (empty($op)) {
  56     $op = arg(2);
  57   }
  58
  59   switch ($op) {
  60     case 'translation':
  61       $output = i18n_node_translation_status(arg(1));
  62       break;
  63   }
  64   print theme('page', $output);
  65 }
  66
  67 function i18n_node_translation_status($nid) {
  68   $languages = i18n_supported_languages();
  69   $translations = i18n_node_get_translations($nid, true);
  70   if (!$translations) {
  71     $node = node_load(array('nid' => $nid));
  72     $translations[$node->language]= $node;
  73   }
  74   foreach ($languages as $lang => $name) {
  75     if (array_key_exists($lang, $translations)) {
  76       $node = $translations[$lang];
  77       $rows[] = array($name, l($node->title, 'node/'.$node->nid), l(t('edit'), 'node/'.$node->nid.'/edit'));
  78       if ($node->nid == $nid) {
  79         drupal_set_title(t('Translations of ').$node->title);
  80       }
  81     }
  82     else {
  83       $rows[] = array($name, t('Not translated'), l(t('create translation'), 'translation/node/'.$nid.'/'.$lang));
  84   }
  85   }
  86   $header = array(t('Language'), t('Title'), t('Actions'));
  87   $output .= t('<h2>Translation Status</h2>') .'<br />';
  88   $output .= theme('table', $header, $rows);
  89   return $output;
  90 }
  91
  92 /**
  93  * Hook nodeapi
  94  */
  95 function i18n_nodeapi(&$node, $op, $arg = 0) {
  96
  97   if (variable_get("i18n_node_$node->type", 0)) {
  98     switch ($op) {
  99       case 'fields':
 100         return array('language');
 101         break;
 102
 103       case 'validate':
 104         break;
 105
 106       case 'insert':
 107         if ( arg(0) == 'translation' ) {
 108           i18n_node_create_translation($node->nid, $node->language, $node->i18n_snid);
 109         }
 110         break;
 111
 112       case 'delete':
 113         db_query('DELETE FROM {i18n_node} WHERE nid=%d', $node->nid);
 114         break;
 115
 116       case 'update':
 117         // Check language changed?
 118         break;
 119
 120       case 'form pre':
 121         $languages = i18n_supported_languages();
 122         if ($node->nid) {
 123           $translations = i18n_node_get_translations($node->nid);
 124         }
 125         elseif (arg(0) == 'translation') {
 126           // We are translating a node
 127           $snid = arg(2);
 128           $node->language = arg(3);
 129           $form = form_hidden('i18n_snid', $node->i18n_snid ? $node->i18n_snid : $snid);
 130           // Load the node to be translated
 131           $trans = node_load(array('nid' => $snid));
 132           foreach ($trans as $field=>$value) {
 133             if ($field != 'nid' && empty($node->$field)) {
 134               $node->$field = $value;
 135             }
 136           }
 137           $translations = i18n_node_get_translations($snid, true);
 138
 139           if (!$translations) {
 140             $translations[$trans->language]= $trans;
 141           }
 142         }
 143
 144         if ($translations) {
 145           foreach ($languages as $lang => $langname) {
 146             if ($trans = $translations[$lang]) {
 147               $rows[] = array($langname, l($trans->title, 'node/'.$trans->nid.'/edit'));
 148             }
 149             else {
 150               $langselect[$lang]= $langname;
 151             }
 152           }
 153         }
 154         else {
 155           $langselect = $languages;
 156         }
 157
 158         $langselect = array_merge(array('' => ''), $langselect);
 159         $form .= form_select(t('Language'), 'language', $node->language ? $node->language : i18n_get_lang(), $langselect);
 160         if ($rows) {
 161            $header = array(t('Language'), t('Title'));
 162            $form .= form_group(t('translations'), theme('table', $header, $rows));
 163         }
 164
 165         return $form;
 166         break;
 167     }
 168   }
 169 }
 170
 171 function i18n_node_available_langs($node) {
 172   $languages = i18n_supported_languages();
 173   if ($node->nid) {
 174     $usedlangs = i18n_node_get_translations($node->nid);
 175   }
 176   elseif ($node->i18n_snid) {
 177     $usedlangs = i18n_node_get_translations($node->i18n_snid, true);
 178   }
 179   else {
 180     return $languages;
 181   }
 182
 183   foreach ($languages as $lang=>$name) {
 184     if (!array_key_exists($lang, $usedlangs)) {
 185        $newlangs[$lang] = $name;
 186     }
 187   }
 188
 189   return $newlangs;
 190
 191 }
 192
 193 function i18n_node_get_lang($nid, $default = '') {
 194   $lang = db_result(db_query('SELECT language FROM {node} WHERE nid=%d',$nid));
 195   return $lang ? $lang : $default ;
 196 }
 197
 198 /**
 199    *       getall = true to get the also node itself
 200    */
 201
 202 function i18n_node_get_translations($nid, $getall = false) {
 203   $sql = 'SELECT n.nid, n.language, n.title, a.trid FROM {node} n INNER JOIN {i18n_node} a ON n.nid = a.nid INNER JOIN {i18n_node} b ON a.trid = b.trid AND b.nid =%d';
 204   if ($getall) {
 205     $result = db_query($sql, $nid);
 206   }
 207   else {
 208     $result = db_query($sql . ' WHERE n.nid != %d', $nid, $nid);
 209   }
 210   $items = array();
 211   while ($node = db_fetch_object($result)) {
 212       $items[$node->language] = $node;
 213   }
 214   //debug($items);
 215   return $items;
 216 }
 217
 218 // snid = source nid
 219 function i18n_node_create_translation($nid, $lang, $snid) {
 220   $trid = db_result(db_query('SELECT trid FROM {i18n_node} WHERE nid=%d', $snid));
 221   if (!$trid) {
 222     $trid = db_next_id('{i18n_node}_trid');
 223     db_query('INSERT INTO {i18n_node} (trid, nid) VALUES (%d, %d)', $trid, $snid);
 224   }
 225   db_query('INSERT INTO {i18n_node}(trid, nid) VALUES (%d, %d)', $trid, $nid);
 226 }
 227
 228 function i18n_node_where_sql() {
 229   return " AND ( n.language='" . i18n_get_lang(). "' OR n.language='')";
 230 }
 231
 232 function i18n_get_node_type($nid) {
 233   return db_result(db_query('SELECT type FROM {node} WHERE nid=%d', $nid));
 234 }
 235
 236 ?>