private function buildItemBodySimple(array $interactions)
{
$interactions = array_values($interactions);
$contentCollection = new QtiComponentCollection();
// Append the extra contents belong to an interaction before the interaction itself
foreach ($interactions as $data) {
if (isset($data['extraContent'])) {
$content = QtiMarshallerUtil::unmarshallElement($data['extraContent']);
$contentCollection->merge($content);
}
$contentCollection->attach($data['interaction']);
}
$itemBody = new ItemBody();
$itemBody->setContent(ContentCollectionBuilder::buildBlockCollectionContent($contentCollection));
return $itemBody;
}
