Server side part for function obs_getmeasurebyid

server/extension/sql/110_data_observatory_augmentation.sql

@@ -476,3 +476,54 @@ RETURNS NUMERIC AS $$
   finally:
       quota_service.increment_total_service_use()
 $$ LANGUAGE plpythonu;
+
+CREATE OR REPLACE FUNCTION cdb_dataservices_server._OBS_GetMeasureById(
+  username TEXT,
+  orgname TEXT,
+  geom_ref TEXT,
+  measure_id TEXT,
+  boundary_id TEXT,
+  time_span TEXT DEFAULT NULL)
+RETURNS NUMERIC AS $$
+  CONNECT cdb_dataservices_server._obs_server_conn_str(username, orgname);
+  SELECT cdb_observatory.OBS_GetMeasureById(geom_ref, measure_id, boundary_id, time_span);
+$$ LANGUAGE plproxy;
+
+CREATE OR REPLACE FUNCTION cdb_dataservices_server.OBS_GetMeasureById(
+  username TEXT,
+  orgname TEXT,
+  geom_ref TEXT,
+  measure_id TEXT,
+  boundary_id TEXT,
+  time_span TEXT DEFAULT NULL)
+RETURNS NUMERIC AS $$
+  from cartodb_services.metrics import QuotaService
+
+  plpy.execute("SELECT cdb_dataservices_server._connect_to_redis('{0}')".format(username))
+  redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']
+  plpy.execute("SELECT cdb_dataservices_server._get_obs_config({0}, {1})".format(plpy.quote_nullable(username), plpy.quote_nullable(orgname)))
+  user_obs_config = GD["user_obs_config_{0}".format(username)]
+
+  quota_service = QuotaService(user_obs_config, redis_conn)
+  if not quota_service.check_user_quota():
+    plpy.error('You have reached the limit of your quota')
+
+  try:
+      obs_plan = plpy.prepare("SELECT cdb_dataservices_server._OBS_GetMeasureById($1, $2, $3, $4, $5, $6) as measure;", ["text", "text", "text", "text", "text", "text"])
+      result = plpy.execute(obs_plan, [username, orgname, geom_ref, measure_id, boundary_id, time_span])
+      if result:
+        quota_service.increment_success_service_use()
+        return result[0]['measure']
+      else:
+        quota_service.increment_empty_service_use()
+        return None
+  except BaseException as e:
+      import sys, traceback
+      type_, value_, traceback_ = sys.exc_info()
+      quota_service.increment_failed_service_use()
+      error_msg = 'There was an error trying to use OBS_GetMeasureById: {0}'.format(e)
+      plpy.notice(traceback.format_tb(traceback_))
+      plpy.error(error_msg)
+  finally:
+      quota_service.increment_total_service_use()
+$$ LANGUAGE plpythonu;