/**
* Checks whether or not $value:
*
* * is an instance of OutcomeVariable
* * has a 'duration' QTI baseType.
* * has 'single' QTI cardinality.
*
* @throws \InvalidArgumentException If one or more of the conditions above are not respected.
*/
protected function checkType($value)
{
parent::checkType($value);
if (!$value instanceof OutcomeVariable) {
$className = get_class($value);
$msg = "The DurationStore only aims at storing OutcomeVariable objects, {$className} object given.";
throw new InvalidArgumentException($msg);
}
if (($bt = $value->getBaseType()) !== BaseType::DURATION) {
$baseTypeName = BaseType::getNameByConstant($bt);
$msg = "The DurationStore only aims at storing OutcomeVariable objects with a 'duration' baseType, ";
$msg .= "'{$baseTypeName}' baseType given ";
$id = $value->getIdentifier();
$msg .= "for variable '{$id}'.";
throw new InvalidArgumentException($msg);
}
if (($bt = $value->getCardinality()) !== Cardinality::SINGLE) {
$cardinalityName = Cardinality::getNameByConstant($bt);
$msg = "The DurationStore only aims at storing OutcomeVariable objects with a 'single' cardinality, ";
$msg .= "'{$cardinalityName}' cardinality given ";
$id = $value->getIdentifier();
$msg .= "for variable '{$id}'.";
throw new InvalidArgumentException($msg);
}
}
