Some commit

sql/backup.pgsql

@@ -12,6 +12,7 @@ DROP TABLE IF EXISTS FpsCounter CASCADE;
 DROP TABLE IF EXISTS PointerLocked CASCADE;
 DROP TABLE IF EXISTS SwitchedLockOption CASCADE;
 DROP TABLE IF EXISTS Coin CASCADE;
+DROP TABLE IF EXISTS CoinCombination CASCADE;
 
 DROP TYPE IF EXISTS VECTOR3 CASCADE;
 DROP TYPE IF EXISTS CAMERA CASCADE;
@@ -48,10 +49,23 @@ CREATE TABLE Scene(
     name CHAR(50)
 );
 
+CREATE TABLE CoinCombination(
+    id SERIAL PRIMARY KEY,
+    scene_id SERIAL REFERENCES Scene (id),
+    coin_1 INTEGER,
+    coin_2 INTEGER,
+    coin_3 INTEGER,
+    coin_4 INTEGER,
+    coin_5 INTEGER,
+    coin_6 INTEGER,
+    coin_7 INTEGER,
+    coin_8 INTEGER
+);
+
 CREATE TABLE Experiment(
     id SERIAL PRIMARY KEY,
     user_id SERIAL REFERENCES Users (id),
-    scene_id SERIAL REFERENCES Scene (id),
+    coin_combination_id SERIAL REFERENCES CoinCombination (id),
     template VARCHAR(30)
 );
 
@@ -130,3 +144,83 @@ CREATE TABLE SwitchedLockOption(
     time TIMESTAMP DEFAULT NOW(),
     locked BOOLEAN
 );
+
+-- Fill with example
+INSERT INTO Users(rating) VALUES(3);
+INSERT INTO Users(rating) VALUES(3);
+INSERT INTO Users(rating) VALUES(3);
+INSERT INTO Users(rating) VALUES(3);
+
+INSERT INTO CoinCombination(scene_id) VALUES (2);
+INSERT INTO CoinCombination(scene_id) VALUES (3);
+INSERT INTO CoinCombination(scene_id) VALUES (4);
+INSERT INTO CoinCombination(scene_id) VALUES (4);
+
+INSERT INTO Experiment(user_id, coin_combination_id, template) VALUES(1, 1, '1');
+INSERT INTO Experiment(user_id, coin_combination_id, template) VALUES(2, 1, '2');
+-- INSERT INTO Experiment(user_id, coin_combination_id, template) VALUES(2, 1, '3');
+
+INSERT INTO Experiment(user_id, coin_combination_id, template) VALUES(1, 2, '2');
+INSERT INTO Experiment(user_id, coin_combination_id, template) VALUES(2, 2, '3');
+
+INSERT INTO Experiment(user_id, coin_combination_id, template) VALUES(3, 4, '3');
+
+SELECT * FROM Experiment;
+
+-- PROTO request
+SELECT DISTINCT CoinCombination.id AS id, all_template as template, CoinCombination.scene_id as scene_id
+FROM Experiment, CoinCombination,
+    (SELECT * FROM generate_series(1,3) all_template) ali
+
+WHERE
+    Experiment.coin_combination_id = CoinCombination.id AND
+    CoinCombination.scene_id IN(
+
+        SELECT CoinCombination.scene_id as scene_id
+
+        FROM Users, Experiment, CoinCombination
+
+        WHERE
+            Experiment.user_id = Users.id AND
+            Experiment.coin_combination_id = CoinCombination.id AND
+            Users.rating = 3 AND
+            Users.id != 3 AND
+            all_template NOT IN (
+                SELECT CAST(template AS INTEGER)
+                FROM Experiment, Users
+                WHERE Experiment.user_id = Users.id AND Users.id = 3
+            ) AND
+            CoinCombination.scene_id NOT IN(
+                SELECT scene_id FROM Experiment, Users
+                WHERE Experiment.user_id = Users.id AND Users.id = 3
+            )
+
+        GROUP BY CoinCombination.scene_id
+
+        HAVING COUNT(DISTINCT Experiment.template) < 3
+
+)
+
+EXCEPT
+
+SELECT CoinCombination.id AS id, CAST(Experiment.template AS INTEGER) as template, CoinCombination.scene_id as scene_id
+FROM Experiment, CoinCombination
+WHERE
+    Experiment.coin_combination_id = CoinCombination.id AND
+    CoinCombination.scene_id IN(
+
+        SELECT CoinCombination.scene_id as scene_id
+
+        FROM Users, Experiment, CoinCombination
+
+        WHERE
+            Experiment.user_id = Users.id AND
+            Experiment.coin_combination_id = CoinCombination.id AND
+            Users.rating = 3 AND
+            Users.id != 3
+
+        GROUP BY CoinCombination.scene_id
+
+        HAVING COUNT(DISTINCT Experiment.template) < 3
+
+);