/**
* add an exercise with id.
*
* @param string $session_id current session
* @param int $target_id refid of parent in repository
* @param string $exercise_xml qti xml description of test
*
* @return int reference id in the tree, 0 if not successful
*/
function addExercise($sid, $target_id, $exercise_xml)
{
$this->initAuth($sid);
$this->initIlias();
if (!$this->__checkSession($sid)) {
return $this->__raiseError($this->__getMessage(), $this->__getMessageCode());
}
global $rbacsystem, $tree, $ilLog;
if (!($target_obj =& ilObjectFactory::getInstanceByRefId($target_id, false))) {
return $this->__raiseError('No valid target given.', 'Client');
}
if (ilObject::_isInTrash($target_id)) {
return $this->__raiseError("Parent with ID {$target_id} has been deleted.", 'CLIENT_OBJECT_DELETED');
}
// Check access
$allowed_types = array('cat', 'grp', 'crs', 'fold', 'root');
if (!in_array($target_obj->getType(), $allowed_types)) {
return $this->__raiseError('No valid target type. Target must be reference id of "course, group, category or folder"', 'Client');
}
if (!$rbacsystem->checkAccess('create', $target_id, "exc")) {
return $this->__raiseError('No permission to create exercises in target ' . $target_id . '!', 'Client');
}
// create object, put it into the tree and use the parser to update the settings
include_once './Modules/Exercise/classes/class.ilObjExercise.php';
include_once './Modules/Exercise/classes/class.ilExerciseXMLParser.php';
include_once './Modules/Exercise/classes/class.ilExerciseException.php';
$exercise = new ilObjExercise();
$exercise->create();
$exercise->createReference();
$exercise->putInTree($target_id);
$exercise->setPermissions($target_id);
$exercise->saveData();
// we need this as workaround because file and member objects need to be initialised
$exercise->read();
$exerciseXMLParser = new ilExerciseXMLParser($exercise, $exercise_xml);
try {
if ($exerciseXMLParser->start()) {
$exerciseXMLParser->getAssignment()->update();
return $exercise->update() ? $exercise->getRefId() : -1;
}
throw new ilExerciseException("Could not parse XML");
} catch (ilExerciseException $exception) {
return $this->__raiseError($exception->getMessage(), $exception->getCode() == ilExerciseException::$ID_MISMATCH ? "Client" : "Server");
}
}