------------------------------------------------------------------------------*/
$errors = array();
$warnings = array();
$messages = array();
if (isset($_POST["uploaditem"])) {
$output = handleupload($errors, $warnings, $messages);
if ($output !== false) {
list($xml, $metadata) = $output;
if (validateQTI($xml, $errors, $warnings, $messages)) {
$xml = simplexml_load_string($xml);
// get data from QTI
$identifier = (string) $xml["identifier"];
$title = (string) $xml["title"];
// see if an item with this identifier already exists in the
// database
$exists = itemexists($identifier);
if ($exists && itemowner($identifier) != username()) {
$errors[] = "The item you are trying to upload was already uploaded by a different user. You should clone it so it gets a new identifier and then try again.";
} else {
deposititem($xml, $metadata);
if (!authoredineqiat($xml)) {
$warnings[] = "This item was not authored in Eqiat. The item will still be playable but Eqiat may not be able to import it for editing.";
}
// collect any warnings and messages
$thingstosay = array();
if (!empty($warnings)) {
$thingstosay[] = "warnings";
}
if (!empty($messages)) {
$thingstosay[] = "messages";
}
function deposititem()
{
$args = func_get_args();
// collect data
switch (count($args)) {
case 1:
if (!$args[0] instanceof QTIAssessmentItem) {
throw new Exception("with one argument, expected QTIAssessmentItem");
}
$identifier = $args[0]->getQTIID();
$title = $args[0]->data("title");
$description = $args[0]->data("description");
$xml = $args[0]->getQTIIndentedString();
$keywords = $args[0]->getKeywords();
break;
case 2:
if ($args[0] instanceof SimpleXMLElement) {
$sxml = $args[0];
$xml = simplexml_indented_string($args[0]);
} else {
if (is_string($args[0])) {
$sxml = simplexml_load_string($args[0]);
$xml = $args[0];
} else {
throw new Exception("With two arguments expected SimpleXML element or XML string as first");
}
}
$identifier = (string) $sxml["identifier"];
$title = (string) $sxml["title"];
if (!is_array($args[1])) {
throw new Exception("With two arguments expected metadata array as second");
}
$description = isset($args[1]["description"]) ? $args[1]["description"] : "";
$keywords = isset($args[1]["keywords"]) ? $args[1]["keywords"] : array();
break;
default:
throw new Exception("expected one or two arguments");
}
db()->exec("BEGIN TRANSACTION;");
// update or insert
if (itemexists($identifier)) {
// update item
db()->exec("\n\t\t\tDELETE FROM keywords WHERE item='" . db()->escapeString($identifier) . "';\n\t\t\tUPDATE items SET\n\t\t\t\tmodified=" . time() . ",\n\t\t\t\ttitle='" . db()->escapeString($title) . "',\n\t\t\t\tdescription='" . db()->escapeString($description) . "',\n\t\t\t\txml='" . db()->escapeString($xml) . "'\n\t\t\tWHERE identifier='" . db()->escapeString($identifier) . "';\n\t\t");
// add a comment to the item to show it has been updated
db()->exec("\n\t\t\tINSERT INTO comments VALUES (\n\t\t\t\t'" . db()->escapeString(username()) . "',\n\t\t\t\t'" . db()->escapeString($identifier) . "',\n\t\t\t\t'" . db()->escapeString("Automatic comment: this item has been updated") . "',\n\t\t\t\t" . time() . "\n\t\t\t);\n\t\t");
} else {
// new item -- insert it
db()->exec("\n\t\t\tINSERT INTO items VALUES (\n\t\t\t\t'" . db()->escapeString($identifier) . "',\n\t\t\t\t" . time() . ",\n\t\t\t\tNULL,\n\t\t\t\t'" . db()->escapeString(username()) . "',\n\t\t\t\t'" . db()->escapeString($title) . "',\n\t\t\t\t'" . db()->escapeString($description) . "',\n\t\t\t\t'" . db()->escapeString($xml) . "'\n\t\t\t);\n\t\t");
}
// add keywords
foreach ($keywords as $keyword) {
db()->exec("\n\t\t\tINSERT INTO keywords VALUES (\n\t\t\t\t'" . db()->escapeString($identifier) . "',\n\t\t\t\t'" . db()->escapeString($keyword) . "'\n\t\t\t);\n\t\t");
}
// commit changes
db()->exec("COMMIT;");
}
(c) 2010 JISC-funded EASiHE project, University of Southampton
Licensed under the Creative Commons 'Attribution non-commercial share alike'
licence -- see the LICENCE file for more details
------------------------------------------------------------------------------*/
requirelogin();
if (!isset($_REQUEST["qtiid"])) {
redirect("eqiat/");
}
$ai = QTIAssessmentItem::fromQTIID($_REQUEST["qtiid"]);
if (!$ai) {
badrequest("No QTI found in session data for specified QTI ID");
}
if (!$ai->getQTI() || count($ai->getErrors())) {
badrequest("Specified QTI item is unfinished or has errors");
}
if (($exists = itemexists($ai->getQTIID())) && itemowner($ai->getQTIID()) != username()) {
badrequest("The item you are trying to deposit was already uploaded by a different user. You should clone it so it gets a new identifier and then try again.");
}
deposititem($ai);
// remove from session memory to remove from Eqiat view
$ai->sessionRemove();
$title = "Item " . ($exists ? "updated" : "deposited");
include "htmlheader.php";
?>
<h2><?php
echo htmlspecialchars($title);
?>
</h2>
<p>The item "<?php
echo htmlspecialchars($ai->data("title"));
?>
