public static function ProcessUsePerfRequest($xml)
{
$intuitel_elements = IntuitelController::getIntuitelXML($xml);
$userPerfs = IntuitelXMLSerializer::get_required_element($intuitel_elements, 'UsePerf');
// OUTPUT Inmediate Response
$response = IntuitelXMLSerializer::getIntuitelXMLTemplate();
$adaptor = Intuitel::getAdaptorInstanceForCourse();
foreach ($userPerfs as $useperf) {
$uid = IntuitelXMLSerializer::get_required_attribute($useperf, 'uId');
$mid = IntuitelXMLSerializer::get_required_attribute($useperf, 'mId');
$loPerfs = $useperf->LoPerf;
$user_id = new UserId((string) $uid);
try {
$user = $adaptor->getNativeUserFromUId($user_id);
} catch (UnknownUserException $ex) {
$user = null;
}
$useperf_xml = $response->addChild('UsePerf', null, INTUITEL_LMS_NAMESPACE_URI);
$useperf_xml->addAttribute('uId', $uid);
$useperf_xml->addAttribute('mId', $mid);
if ($loPerfs->count() == 0) {
// If loId-attribute is left blank, the LMS returns all available LO scores
if ($user == null) {
//the user id is not known
$LoPerf_xml = $useperf_xml->addChild('LoPerf', null, INTUITEL_LMS_NAMESPACE_URI);
$LoPerf_xml->addAttribute('loId', '');
$LoPerf_xml->addAttribute('mId', $mid);
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'internal');
$score_xml->addAttribute('value', 'learnerUnknown');
} else {
//all data for every LO should be returned, need all loIds of the Intuitel enabled courses in which the user is registered
// list of intuitel courses in which the user is student
$listCourseLO = Intuitel::getAdaptorInstanceForCourse()->getCoursesEnrolled($user_id);
// get the learning objects of those courses
$listLO = array();
foreach ($listCourseLO as $intuitelCourse) {
$adaptor = Intuitel::getAdaptorInstanceForCourseLOId($intuitelCourse->loId);
$listLO = array_merge($listLO, $adaptor->findLOAll());
}
//TODO check: if no objects in courses or not enrolled in any course, what is the message to deliver?
if (count($listLO) > 0) {
foreach ($listLO as $lo) {
$use_data = $adaptor->getUseData($lo, intval($user->id));
$loId = $lo->getloId();
//TODO this code that creates the xml message is the same to the one in the ELSE, should be unified.
$LoPerf_xml = $useperf_xml->addChild('LoPerf', null, INTUITEL_LMS_NAMESPACE_URI);
$LoPerf_xml->addAttribute('loId', $loId);
if (isset($use_data['completion'])) {
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'completion');
$score_xml->addAttribute('value', $use_data['completion']);
}
if ($use_data['accessed'] === true) {
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'accessed');
$score_xml->addAttribute('value', 'true');
} else {
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'accessed');
$score_xml->addAttribute('value', 'false');
}
if (isset($use_data['grade'])) {
$grade = IntuitelController::get_scaled_grade($use_data['grade'], $use_data['grademin'], $use_data['grademax']);
//$response.="<Score type=\"grade\" value=\"".$grade."\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'grade');
$score_xml->addAttribute('value', $grade);
}
if (isset($use_data['seenPercentage'])) {
//$response.="<Score type=\"seenPercentage\" value=\"".$use_data['seenPercentage']."\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'seenPercentage');
$score_xml->addAttribute('value', $use_data['seenPercentage']);
}
}
}
}
} else {
//CASE B loids are provided
foreach ($loPerfs as $loPerf) {
$loId = IntuitelXMLSerializer::get_required_attribute($loPerf, 'loId');
$loId = new LOId($loId);
// get LO from LoId
try {
$lo = IntuitelAdaptor::createLO($loId);
} catch (UnknownLOException $ex) {
$lo = null;
} catch (UnknownIDException $ex) {
$lo = null;
}
//$response.="<LoPerf loId=\"$loId\">";
$LoPerf_xml = $useperf_xml->addChild('LoPerf', null, INTUITEL_LMS_NAMESPACE_URI);
$LoPerf_xml->addAttribute('loId', $loId);
if ($user != null && $lo != null) {
$use_data = $adaptor->getUseData($lo, intval($user->id));
if (isset($use_data['completion'])) {
//$response.="<Score type=\"completion\" value=\"".$use_data['completion']."\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'completion');
$score_xml->addAttribute('value', $use_data['completion']);
}
if ($use_data['accessed']) {
//$response.="<Score type=\"accessed\" value=\"true\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'accessed');
$score_xml->addAttribute('value', 'true');
} else {
//$response.="<Score type=\"accessed\" value=\"false\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'accessed');
$score_xml->addAttribute('value', 'false');
}
if (isset($use_data['grade'])) {
$grade = IntuitelController::get_scaled_grade($use_data['grade'], $use_data['grademin'], $use_data['grademax']);
//$response.="<Score type=\"grade\" value=\"".$grade."\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'grade');
$score_xml->addAttribute('value', $grade);
}
if (isset($use_data['seenPercentage'])) {
//$response.="<Score type=\"seenPercentage\" value=\"".$use_data['seenPercentage']."\"/>";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'seenPercentage');
$score_xml->addAttribute('value', $use_data['seenPercentage']);
}
}
if ($user == null) {
// $response.="<Score type=\"internal\" value=\"learnerUnknown\" />";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'internal');
$score_xml->addAttribute('value', 'learnerUnknown');
}
if ($lo == null) {
// $response.="<Score type=\"internal\" value=\"loIdUnknown\" />";
$score_xml = $LoPerf_xml->addChild('Score', null, INTUITEL_LMS_NAMESPACE_URI);
$score_xml->addAttribute('type', 'internal');
$score_xml->addAttribute('value', 'loIdUnknown');
}
// $response.="</LoPerf>";
}
// end foreach loPerf
}
// end else CASE B
// $response.="</UsePerf>";
}
//end foreach user
// $response.= "</INTUITEL>";
return IntuitelXMLSerializer::formatXmlString($response->asXML());
}
