/**
* Removes the sub-milestone artifacts from an artifacts tree.
*
* @param User $user The user accessing the data
* @param Tracker_Artifact $milestone_artifact The parent artifact of sub-milestones artifacts
* @param TreeNode $artifacts_tree The artifacts tree to clean up
*/
private function removeSubMilestones(User $user, Tracker_Artifact $milestone_artifact, TreeNode $artifacts_tree)
{
$hierarchy_children_ids = $this->getSubMilestonesArtifactIds($user, $milestone_artifact);
foreach ($artifacts_tree->getChildren() as $node) {
if (in_array($node->getId(), $hierarchy_children_ids)) {
$artifacts_tree->removeChild(null, $node);
}
}
}
