From 27b24b44a0aeaadaaeaa48db154503d4d190f589 Mon Sep 17 00:00:00 2001
From: ig <ig ig@devnullmail.com>
Date: Thu, 9 Mar 2023 10:58:08 +0100
Subject: [PATCH] Rewrite IsParentOfChild even shorter :P

---
 csharp/App/Backend/Database/User.cs | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/csharp/App/Backend/Database/User.cs b/csharp/App/Backend/Database/User.cs
index 22a65a0bd..3782a36d0 100644
--- a/csharp/App/Backend/Database/User.cs
+++ b/csharp/App/Backend/Database/User.cs
@@ -31,9 +31,13 @@ public partial class Db
     public Boolean IsParentOfChild(User parent, User child)
     {
         return child
-              .Unfold(u => GetUserById(u.ParentId))
-              .Select(u => u.Id)
-              .Contains(parent.Id);
+              .Unfold(GetParent)
+              .Any(u => u.Id == parent.Id);
+    }
+
+    public User? GetParent(User u)
+    {
+        return GetUserById(u.ParentId);
     }
 
     public User? GetUserByEmail(String email) => Users.FirstOrDefault(u => u.Email == email);