diff --git a/app.py b/app.py
index ff4e338..a7945e3 100644
--- a/app.py
+++ b/app.py
@@ -63,7 +63,7 @@ def page_posts_from_db():
     postos = db.collection('posts')
     postos = [ p for p in postos]
     postos  = sorted(postos, key=lambda posto: posto['_key'], reverse=False)
-
+ 
     return render_template("interactive-posts.html", postos=postos)
 
 
@@ -85,6 +85,12 @@ def post_a_post(post_key):
         '_to':      f'posts/{metadata["_key"]}'
     }, overwrite_mode='update') 
 
+    
+    cursor = db.aql.execute(
+        """FOR ppp IN posts 
+            LET children = (FOR v IN 1..9999 OUTBOUND ppp post_parents RETURN v) 
+            UPDATE ppp WITH { children_num : COUNT_DISTINCT( children[*]._key )  } IN posts""" 
+    ) 
 
     postos = db.collection('posts') 
     postos  = sorted(postos, key=lambda posto: posto['_key'], reverse=False)