/**
* ADD block to stack.
*
* @param EiTestSetBlockStack $parentStack
* @return EiTestSetBlockStack
*/
public function addToStack(EiTestSetBlockStack $parentStack = null)
{
$dataSetStr = null;
$position = 1;
if ($parentStack != null) {
$position = $parentStack->getPosition() + 1;
$dataSetStr = $this->getTable()->getDataFromDataSet($this, $parentStack);
} else {
$dataSetStr = $this->getTable()->getDataFromDataSet($this);
}
$stack = new EiTestSetBlockStack();
$stack->setEiTestSet($this->getEiTestSet());
$stack->setEiVersionStructure($this->getEiVersionStructure());
$stack->setEiTestSetBlockParam($this);
$stack->setEiTestSetDataSet($dataSetStr);
$stack->setPath($this->getPath());
$stack->setPosition($position);
$stack->save();
return $stack;
}