From cb98f6d0fa64cee3f587acc41771cf2350bd416a Mon Sep 17 00:00:00 2001
From: Maximilian Grundke <maximiliangrundke@googlemail.com>
Date: Thu, 7 Jan 2016 17:44:43 +0100
Subject: [PATCH] Fix controller

---
 app/controllers/exercises_controller.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 5b8d825a..cfe4d155 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -157,7 +157,8 @@ class ExercisesController < ApplicationController
     else
       user_statistics = {}
       query = "SELECT user_id, MAX(score) AS maximum_score, COUNT(id) AS runs
-              FROM submissions WHERE exercise_id = 101 GROUP BY user_id;"
+              FROM submissions WHERE exercise_id = #{@exercise.id} GROUP BY
+              user_id;"
       ActiveRecord::Base.connection.execute(query).each do |tuple|
         user_statistics[tuple["user_id"].to_i] = tuple
       end