/**
* Sets a DataTree as child. Children are returned in same order as first insertion.
* If composite already have a child with same name it will be overwritten
*
* @param DataTreeBase $dataTree
* @param string $placeMark if you want tree to be assigned to other key
*
*/
public function setChildTree(DataTreeBase $dataTree)
{
$name = $dataTree->getName();
$childrenMapIndex = $this->getIndexByName($name);
if ($childrenMapIndex === false) {
$treeIndex = $this->addChild($dataTree);
$this->childrenMap[$name] = $treeIndex;
} else {
$this->setChild($dataTree, $childrenMapIndex);
}
}
/**
* Sets $element as $pos child, overwrites existent if any
*
* @param DataTreeBase $element
* @throws \InvalidArgumentException
*/
protected function setChild(DataTreeBase $element, $pos)
{
if (!is_int($pos) || $pos < 0) {
throw new \InvalidArgumentException('Pos have to be a positive integer');
} elseif ($this->getValue()) {
throw new \InvalidArgumentException('Cannot set a child if tree is a leaf one');
} else {
$element->setParent($this);
$this->elements[$pos] = $element;
}
}
