From 277e712449a36706025a1fdd4f294f2427f03b4a Mon Sep 17 00:00:00 2001
From: cquest <cquest@openstreetmap.fr>
Date: Tue, 7 Jun 2016 06:38:07 +0200
Subject: [PATCH] return error 409 when attempting to create duplicates

---
 backend.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/backend.py b/backend.py
index eaf9bb7..73a36f9 100644
--- a/backend.py
+++ b/backend.py
@@ -262,8 +262,11 @@ class EventResource(BaseEvent):
         cur.close()
         db.close()
         # send back to client
-        resp.body = """{"id":"%s"}""" % (e[0])
-        resp.status = falcon.HTTP_201
+        if e is None:
+          resp.status = falcon.HTTP_409
+        else:
+          resp.body = """{"id":"%s"}""" % (e[0])
+          resp.status = falcon.HTTP_201
 
     def on_post(self, req, resp):
         self.insert_or_update(req, resp, None, """INSERT INTO events ( events_type, events_what, events_when, events_tags, events_geo) VALUES (%s, %s, tstzrange(%s,%s,%s) , %s, %s) RETURNING events_id;""")