From 7f95f8b4d82f87d34a8f7493c7215ae2bc4506da Mon Sep 17 00:00:00 2001
From: cquest <cquest@openstreetmap.fr>
Date: Wed, 20 Apr 2016 07:48:58 +0200
Subject: [PATCH] lastupdate field on events

---
 backend.py | 19 ++++++++++++++++---
 setup.sql  | 34 +++++++++++++++++++++++++++++++++-
 2 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/backend.py b/backend.py
index bd04f0e..2c4b5cc 100644
--- a/backend.py
+++ b/backend.py
@@ -10,19 +10,32 @@ class StatsResource(object):
     def on_get(self, req, resp):
         db = psycopg2.connect("dbname=oedb")
         cur = db.cursor()
-        cur.execute("SELECT count(*) from events;")
+        cur.execute("SELECT count(*) as events_count, max(createdate) as last_created, max(lastupdate) as last_updated from events;")
         stat = cur.fetchone()
-        count_events = stat[0]
         cur.close()
         db.close()
 
-        resp.body = """{"events_count":%s}""" % (count_events)
+        resp.body = """{"events_count": %s, "last_created": "%s", "last_updated": "%s"}""" % (stat[0], stat[1],stat[2])
         resp.set_header('X-Powered-By', 'OpenEventDatabase')
         resp.set_header('Access-Control-Allow-Origin', '*')
         resp.set_header('Access-Control-Allow-Headers', 'X-Requested-With')
         resp.status = falcon.HTTP_200
 
 class EventResource(object):
+    def on_get(self, req, resp):
+        db = psycopg2.connect("dbname=oedb")
+        cur = db.cursor()
+        print(req.params['id'])
+        # get data to display activity graphs
+        cur.execute("""select * from events where events_id='%s';""", req.params['id'])
+        e = cur.fetchone(e['events_tags'])
+        resp.body = e
+        resp.status = falcon.HTTP_200
+        resp.set_header('X-Powered-By', 'OpenEventDatabase')
+        resp.set_header('Access-Control-Allow-Origin', '*')
+        resp.set_header('Access-Control-Allow-Headers', 'X-Requested-With')
+        db.close()
+
     def on_post(self, req, resp):
         # get request body payload (json)
         body = req.stream.read().decode('utf-8')
diff --git a/setup.sql b/setup.sql
index 792c147..824e7fc 100644
--- a/setup.sql
+++ b/setup.sql
@@ -73,6 +73,15 @@ CREATE DOMAIN wgs84_lon AS double precision
 	CONSTRAINT wgs84_lon_check CHECK (((VALUE >= ('-180'::integer)::double precision) AND (VALUE <= (180)::double precision)));
 
 
+--
+-- Name: events_lastupdate(); Type: FUNCTION; Schema: public; Owner: -
+--
+
+CREATE FUNCTION events_lastupdate() RETURNS trigger
+    LANGUAGE plpgsql
+    AS $$ BEGIN NEW.lastupdate = now(); RETURN NEW; END; $$;
+
+
 SET default_tablespace = '';
 
 SET default_with_oids = false;
@@ -88,10 +97,19 @@ CREATE TABLE events (
     events_type text,
     events_tags json,
     events_id uuid DEFAULT uuid_generate_v4(),
-    createdate timestamp without time zone DEFAULT now()
+    createdate timestamp without time zone DEFAULT now(),
+    events_geom geometry,
+    lastupdate timestamp without time zone
 );
 
 
+--
+-- Name: events_idx_geom; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX events_idx_geom ON events USING gist (events_geom);
+
+
 --
 -- Name: events_idx_id; Type: INDEX; Schema: public; Owner: -
 --
@@ -99,6 +117,13 @@ CREATE TABLE events (
 CREATE UNIQUE INDEX events_idx_id ON events USING btree (events_id);
 
 
+--
+-- Name: events_idx_lastupdate; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX events_idx_lastupdate ON events USING btree (lastupdate);
+
+
 --
 -- Name: events_idx_what; Type: INDEX; Schema: public; Owner: -
 --
@@ -120,6 +145,13 @@ CREATE INDEX events_idx_when ON events USING btree (events_when);
 CREATE INDEX events_idx_where ON events USING gist (events_where);
 
 
+--
+-- Name: events_lastupdate_trigger; Type: TRIGGER; Schema: public; Owner: -
+--
+
+CREATE TRIGGER events_lastupdate_trigger BEFORE UPDATE ON events FOR EACH ROW EXECUTE PROCEDURE events_lastupdate();
+
+
 --
 -- Name: public; Type: ACL; Schema: -; Owner: -
 --