/**
* @param Category $category
* @return array
*
* Gets children of category and its children.
*/
public function getDescendants($category)
{
$children = $category->getChildren($category->id);
if (!empty($children)) {
foreach ($children as $child) {
$grandChildren = $this->getDescendants($child);
if (!empty($grandChildren)) {
$children = array_merge($children, $grandChildren);
}
}
}
return $children;
}
