/**
* @param $arguments
* @param TransformationContext $context
* @return true
*/
public function call($arguments, TransformationContext $context)
{
/** @var string $groupId */
$groupId = $arguments[0];
/** @var DOMElement[] $elements */
$elements = $arguments[1];
/** @var string $elementId */
$elementId = $arguments[2];
/** @var string $groupBy */
$groupBy = base64_decode($arguments[3]);
$collection = $this->groups->get($groupId);
foreach ($elements as $key => $element) {
$xpath = new DOMXPath($element->ownerDocument);
$xpath->registerPhpFunctions($context->getPhpFunctions());
$groupingKey = $xpath->evaluate($this->compiler->compile('string(' . $groupBy . ')', $element), $element);
$collection->get($groupingKey)->addId($elementId);
}
return true;
}
