1 files changed, 22 insertions, 0 deletions
diff --git a/db/analyse.py b/db/analyse.py
new file mode 100644
index 0000000..a4076f5
--- /dev/null
+++ b/db/analyse.py
@@ -0,0 +1,22 @@
+from sqlalchemy.sql import text
+
+class DBAnalyse:
+    def __init__(self, db):
+        self.db = db
+        
+    def comparable(self, quiz_id,user1,user2):
+        sql = "SELECT q.question, q.neg_answer, q.pos_answer, \
+                a1.answer, a2.answer, \
+                100 - ABS( a1.answer - a2.answer ) / 10 \
+                FROM questionaires quiz \
+                JOIN questions q ON q.id = ANY(quiz.questionset) \
+                JOIN answers a1 ON a1.user_id = (:user1) \
+                JOIN answers a2 ON a2.user_id = (:user2) \
+                WHERE a1.question_id = q.id \
+                AND a2.question_id = q.id \
+                AND quiz.id = (:quiz_id);"
+        return self.db.session.execute( text(sql), {
+                "quiz_id":quiz_id,
+                "user1":user1,
+                "user2":user2
+            } ).fetchall()