From 2982b9804bdf5f33b0f8ddb63e8cb3570fcd21d0 Mon Sep 17 00:00:00 2001
From: Thomas FORGIONE <thomas.forgione@gmail.com>
Date: Fri, 2 Oct 2015 11:07:40 +0200
Subject: [PATCH] Added check to see if there were any incorrect experiments in
 the database

---
 sql/check.pgsql | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 sql/check.pgsql

diff --git a/sql/check.pgsql b/sql/check.pgsql
new file mode 100644
index 0000000..34e5706
--- /dev/null
+++ b/sql/check.pgsql
@@ -0,0 +1,34 @@
+-- Checks that each user has never twice either the same scene or the same recommendation style
+SELECT count(*) = 0
+FROM
+    Experiment as E1,
+    Experiment as E2,
+    CoinCombination as C1,
+    CoinCombination as C2
+
+WHERE
+        E1.user_id = E2.user_id
+    AND E1.id != E2.id
+    AND E1.coin_combination_id = C1.id
+    AND E2.coin_combination_id = C2.id
+    AND (E1.recommendation_style = E2.recommendation_style OR C1.scene_id = C2.scene_id);
+
+-- Checks that a CoinCombination is never used more than 3 times (except for the tutorial)
+SELECT count(*) = 0
+FROM (
+    SELECT count(CoinCombination.id)
+    FROM Experiment, CoinCombination
+    WHERE Experiment.coin_combination_id = CoinCombination.id AND scene_id != 1
+    GROUP BY Experiment.coin_combination_id
+    HAVING count(CoinCombination.id) > 3
+) AS T;
+
+-- Checks that the CoinCombination for a tutorial is only used once
+SELECT count(*) = 0
+FROM (
+    SELECT count(CoinCombination.id)
+    FROM Experiment, CoinCombination
+    WHERE Experiment.coin_combination_id = CoinCombination.id AND scene_id = 1
+    GROUP BY Experiment.coin_combination_id
+    HAVING count(CoinCombination.id) != 1
+) AS T;