search for: post_point

Hi, I am trying to create a simple point system and display the total on my index page. So I have my db basically setup like this: Posts id, body, created_at, user_id Post_points id, post_id, user_id, created_at, value So as you can see I am allowing other users to create points on the post and my db will store who gave the point as well. "value" is the point value which can either be -1 or 1. Basically I just want to add these points together for a given p...