licence -- see the LICENCE file for more details
------------------------------------------------------------------------------*/
if (isset($_REQUEST["itemtype"])) {
// item type chosen
// look for a item type class with this name
$classname = "QTI" . ucfirst($_REQUEST["itemtype"]);
if (!@class_exists($classname) || !is_subclass_of($classname, "QTIAssessmentItem")) {
servererror("Item type doesn't exist or not implemented");
}
$ai = new $classname();
$ai->sessionStore();
$action = new EditAssessmentItemAction();
redirect($action->actionURL($ai, false));
}
// choose from a list of item types
$items = item_types();
$GLOBALS["title"] = "New assessment item";
include "htmlheader.php";
?>
<h2><?php
echo $GLOBALS["title"];
?>
</h2>
<p>The first stage is to choose an item type.</p>
<dl>
<?php
foreach ($items as $item) {
?>
<dt>
<a href="<?php
echo SITEROOT_WEB;
function xmltoqtiobject($xml, &$errors, &$warnings, &$messages, $metadata = array(), $newidentifier = false)
{
// make sure it's valid QTI
if (!validateQTI($xml, $errors, $warnings, $messages)) {
$errors[] = "The assessment item found is not valid QTI";
return false;
}
// load to SimpleXML object
$xml = simplexml_load_string($xml);
// test against supported item types
$items = item_types();
$scores = array();
$ai = null;
foreach ($items as $item) {
$score = $item->fromXML($xml);
$scores[] = $score;
if ($score == 255) {
$ai = $item;
break;
}
}
if (is_null($ai)) {
arsort($scores);
$keys = array_keys($scores);
if ($scores[$keys[0]] == 0) {
$errors[] = "The uploaded item was not of a recognized type";
return false;
} else {
$ai = $items[$keys[0]];
$ai->addWarning("Item did not exactly match any of the implemented types. The closest match ({$ai->itemTypePrint()}, " . round($scores[$keys[0]] / 2.55) . "% match) was chosen.");
}
}
// give it a new identifier if appropriate, restore manifest identifier if
// no new identifier is wanted
if ($newidentifier) {
$ai->setQTIID(null);
} else {
if (array_key_exists("midentifier", $metadata)) {
$ai->setMID($metadata["midentifier"]);
}
}
// restore the metadata taken from the manifest
if (array_key_exists("description", $metadata)) {
$ai->data("description", $metadata["description"]);
}
if (array_key_exists("keywords", $metadata)) {
$ai->data("keywords", implode(", ", $metadata["keywords"]));
}
// take the user to the main menu with the uploaded item highlighted
return $ai;
}
