private function validateSolutionCompareExpression(ilAssQuestionSolutionComparisonExpression $expression, iQuestionCondition $question)
{
require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/ilAssLacConditionParser.php';
require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/ilAssLacQuestionProvider.php';
require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/ilAssLacCompositeValidator.php';
try {
$conditionParser = new ilAssLacConditionParser();
$conditionComposite = $conditionParser->parse($expression->getExpression());
$questionProvider = new ilAssLacQuestionProvider();
$questionProvider->setQuestion($question);
$conditionValidator = new ilAssLacCompositeValidator($questionProvider);
$conditionValidator->validate($conditionComposite);
} catch (ilAssLacException $e) {
if ($e instanceof ilAssLacFormAlertProvider) {
return $e->getFormAlert($this->lng);
}
throw $e;
}
return true;
}
