/**
* @param PFUser $user
* @param Planning $planning
* @return Planning_ArtifactMilestone[]
*/
public function getAllClosedMilestones(PFUser $user, Planning $planning)
{
$artifacts = $this->artifact_factory->getClosedArtifactsByTrackerIdUserCanView($user, $planning->getPlanningTrackerId());
return $this->getReverseKeySortedMilestonesFromArtifacts($artifacts);
}
