/**
* Short description of method buildExpression
*
* @access public
* @author Joel Bout, <*****@*****.**>
* @param DOMElement data
* @return oat\taoQtiItem\model\qti\response\Rule
*/
protected function buildExpression(DOMElement $data)
{
$data = simplexml_import_dom($data);
return ExpressionParserFactory::build($data);
}
/**
* Short description of method buildResponseCondition
*
* @access private
* @author Joel Bout, <*****@*****.**>
* @param SimpleXMLElement data
* @return oat\taoQtiItem\model\qti\response\ResponseCondition
*/
private static function buildResponseCondition(SimpleXMLElement $data)
{
$responseCondition = new ResponseCondition();
foreach ($data->children() as $child) {
switch ($child->getName()) {
case 'responseIf':
case 'responseElseIf':
$subchildren = null;
foreach ($child->children() as $subchild) {
$subchildren[] = $subchild;
}
// first node is condition
$conditionNode = array_shift($subchildren);
$condition = ExpressionParserFactory::build($conditionNode);
// all the other nodes are action
$responseRules = array();
foreach ($subchildren as $responseRule) {
$responseRules[] = self::buildResponseRule($responseRule);
}
$responseCondition->addResponseIf($condition, $responseRules);
break;
case 'responseElse':
$responseRules = array();
foreach ($child->children() as $responseRule) {
$responseRules[] = self::buildResponseRule($responseRule);
}
$responseCondition->setResponseElse($responseRules);
break;
default:
throw new ParsingException('unknown node in ResponseCondition');
}
}
$returnValue = $responseCondition;
return $returnValue;
}
