From 1a738a2a06a0ad6fbe3997f24db25a203c31896a Mon Sep 17 00:00:00 2001 From: Maximilian Grundke Date: Wed, 16 Dec 2015 14:00:51 +0100 Subject: [PATCH] Refine working time query --- app/models/exercise.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/app/models/exercise.rb b/app/models/exercise.rb index 192c4513..a6b5b8a8 100644 --- a/app/models/exercise.rb +++ b/app/models/exercise.rb @@ -53,7 +53,7 @@ class Exercise < ActiveRecord::Base (SELECT user_id, id, (created_at - lag(created_at) over (PARTITION BY user_id - ORDER BY id)) AS working_time + ORDER BY created_at)) AS working_time FROM submissions WHERE exercise_id=#{id}) AS foo) AS bar GROUP BY user_id