Posted by pbuyle on March 15, 2010 at 4:00pm
What is the current status of multi-language support in Quiz ?
According to [#285570] should be fixed. But when looking at the code in quiz.module in 6.x-3.4, I don't see any reference to language. So it seems that it was dropped in Quiz 3. In Quiz 4, language is only used when copying questions of a translated Quiz.
I'm specifically interested in random selection of questions using a taxonomy term. I'm working on a patch for Quiz 6.x-3.4 to handle multi-languages (ie. node's language) and i18ntaxonomy in _quiz_get_random_taxonomy_question_ids(). So I wonder if there is a ongoing effort for multi-languages support that I can join or if I should fill a new issue for this.
Here is my patched version of _quiz_get_random_taxonomy_question_ids().
<?php
/**
* Given a term ID, get all of the question nid/vids that have that ID.
* @param $tid
* Integer term ID.
* @return
* Array of nid/vid combos, like array(array('nid'=>1, 'vid'=>2)).
*/
function _quiz_get_random_taxonomy_question_ids($tid, $num_random, $lang = NULL) {
if ($tid == 0) {
return array();
}
// Select random questions by taxonomy.
if (defined('_QUIZ_TAXONOMY_GET_TERM')) {
//Use alternate implementation of taxonomy_get_term, used by tests to avoid
//caching in a static variable in function scope.
$term = call_user_func(_QUIZ_TAXONOMY_GET_TERM, $tid);
}
else {
$term = taxonomy_get_term($tid);
}
if($term && $lang && function_exists('i18ntaxonomy_vocabulary')) {
switch (i18ntaxonomy_vocabulary($term->vid)) {
case I18N_TAXONOMY_TRANSLATE:
//This term belongs to a multilingual vocabulary.
if ($lang != $term->language) {
//Use term translation to select questions
$term = reset(i18ntaxonomy_translate_terms(array($term), $lang));
$use_i18ntaxonomy_get_tree = function_exists('i18ntaxonomy_get_tree');
}
break;
case I18N_TAXONOMY_LANGUAGE:
//This term belongs to a vocabulary with a global language.
$vocabulary = taxonomy_vocabulary_load($term->vid);
if ($lang != $vocabulary->language) {
return array();
}
break;
case I18N_TAXONOMY_LOCALIZE:
//Terms are common for all languages.
case I18N_TAXONOMY_NONE:
// No multilingual options for this vocabulary.
default:
break;
}
}
if (!$term) {
return array();
}
if ($use_i18ntaxonomy_get_tree) {
$tree = i18ntaxonomy_get_tree($term->vid, $lang, $term->tid);
}
else {
$tree = taxonomy_get_tree($term->vid, $term->tid);
}
// Flatten the taxonomy tree, and just keep term id's.
$term_ids[] = $term->tid;
if (is_array($tree)) {
foreach ($tree as $term) {
$term_ids[] = $term->tid;
}
}
$term_ids = implode(',', $term_ids);
// Get all published questions with one of the allowed term ids.
if($term_ids) {
$sql = "SELECT n.nid, n.vid
FROM {node} n
INNER JOIN {term_node} tn USING (nid)
WHERE n.status = 1 AND tn.tid IN ($term_ids)
AND n.type IN ('"
. implode("','", array_keys(_quiz_get_question_types()))
. "')";
if ($lang) {
$sql .= " AND n.language = '%s'";
}
$sql .= " ORDER BY RAND()";
$result = db_query_range($sql, $lang, 0, $num_random);
$questions = array();
while ($question_node = db_fetch_array($result)) {
$questions[] = $question_node;
}
return $questions;
}
else {
return array();
}
}
?>
Comments
Patch
I filled an issue with my patch, see http://drupal.org/node/742938