Laravel: Save a hasOne relationship change - laravel-5

Question

I currently have a relationship between checklistItem and actions as followed:
public function action()
{
return $this->belongsTo(Action::class, 'action_id', 'id');
}
public function checklistItem()
{
return $this->hasOne(ChecklistItem::class, 'action_id', 'id');
}
I currently made a method, when saving an action, the checklistItem status should also change depending on what was chosen:
public static function saveFromRequest(Request $request)
{
if (($action = parent::saveFromRequest($request)) !== null){
if (!is_null($action->checklistItem)) {
$action->checklistItem->value->status = $action->switchStatusChecklist($action);
//Need to update or save this specific checklistItem
$action->checklistItem->save();
}
}
return $action;
}
function switchStatusChecklist($action)
{
switch($action->status) {
case 'closed':
$status = 'checked';
break;
case 'canceled':
$status = 'notapplicable';
break;
default:
$status = 'open';
break;
}
return $status;
}
Problem:
My checklistitem does not get updated.