Retrieves the name of the attribute which value should be used as key.
| public getKeyAttribute ( ) : string | ||
| return | string | The name of the attribute |
/**
* @param PrototypedArrayNode $node
*
* @return array
*/
private function getPrototypeChildren(PrototypedArrayNode $node)
{
$prototype = $node->getPrototype();
$key = $node->getKeyAttribute();
// Do not expand prototype if it isn't an array node nor uses attribute as key
if (!$key && !$prototype instanceof ArrayNode) {
return $node->getChildren();
}
if ($prototype instanceof ArrayNode) {
$keyNode = new ArrayNode($key, $node);
$children = $prototype->getChildren();
if ($prototype instanceof PrototypedArrayNode && $prototype->getKeyAttribute()) {
$children = $this->getPrototypeChildren($prototype);
}
// add children
foreach ($children as $childNode) {
$keyNode->addChild($childNode);
}
} else {
$keyNode = new ScalarNode($key, $node);
}
$info = 'Prototype';
if (null !== $prototype->getInfo()) {
$info .= ': ' . $prototype->getInfo();
}
$keyNode->setInfo($info);
return array($key => $keyNode);
}
