71 lines
2.9 KiB
PL/PgSQL
71 lines
2.9 KiB
PL/PgSQL
--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
|
|
-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
|
|
\echo Use "ALTER EXTENSION cdb_dataservices_server UPDATE TO '0.30.2'" to load this file. \quit
|
|
|
|
-- HERE goes your code to upgrade/downgrade
|
|
|
|
CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_mapbox_isodistance(
|
|
username TEXT,
|
|
orgname TEXT,
|
|
source geometry(Geometry, 4326),
|
|
mode TEXT,
|
|
data_range integer[],
|
|
options text[])
|
|
RETURNS SETOF cdb_dataservices_server.isoline AS $$
|
|
from cartodb_services.tools import ServiceManager
|
|
from cartodb_services.mapbox import MapboxMatrixClient, MapboxIsolines
|
|
from cartodb_services.mapbox.types import TRANSPORT_MODE_TO_MAPBOX
|
|
from cartodb_services.tools import Coordinate
|
|
from cartodb_services.refactor.service.mapbox_isolines_config import MapboxIsolinesConfigBuilder
|
|
|
|
import cartodb_services
|
|
cartodb_services.init(plpy, GD)
|
|
|
|
service_manager = ServiceManager('isolines', MapboxIsolinesConfigBuilder, username, orgname, GD)
|
|
service_manager.assert_within_limits()
|
|
|
|
try:
|
|
client = MapboxMatrixClient(service_manager.config.mapbox_api_key, service_manager.logger, service_manager.config.service_params)
|
|
mapbox_isolines = MapboxIsolines(client, service_manager.logger)
|
|
|
|
if source:
|
|
lat = plpy.execute("SELECT ST_Y('%s') AS lat" % source)[0]['lat']
|
|
lon = plpy.execute("SELECT ST_X('%s') AS lon" % source)[0]['lon']
|
|
origin = Coordinate(lon,lat)
|
|
else:
|
|
raise Exception('source is NULL')
|
|
|
|
profile = TRANSPORT_MODE_TO_MAPBOX.get(mode)
|
|
|
|
# -- TODO Support options properly
|
|
isolines = {}
|
|
for r in data_range:
|
|
isoline = mapbox_isolines.calculate_isodistance(origin, r, profile)
|
|
isolines[r] = isoline
|
|
|
|
result = []
|
|
for r in data_range:
|
|
|
|
if len(isolines[r]) >= 3:
|
|
# -- TODO encapsulate this block into a func/method
|
|
locations = isolines[r] + [ isolines[r][0] ] # close the polygon repeating the first point
|
|
wkt_coordinates = ','.join(["%f %f" % (l.longitude, l.latitude) for l in locations])
|
|
sql = "SELECT ST_MPolyFromText('MULTIPOLYGON((({0})))', 4326) as geom".format(wkt_coordinates)
|
|
multipolygon = plpy.execute(sql, 1)[0]['geom']
|
|
else:
|
|
multipolygon = None
|
|
|
|
result.append([source, r, multipolygon])
|
|
|
|
service_manager.quota_service.increment_success_service_use()
|
|
service_manager.quota_service.increment_isolines_service_use(len(isolines))
|
|
return result
|
|
except BaseException as e:
|
|
import sys
|
|
service_manager.quota_service.increment_failed_service_use()
|
|
service_manager.logger.error('Error trying to get Mapbox isolines', sys.exc_info(), data={"username": username, "orgname": orgname})
|
|
raise Exception('Error trying to get Mapbox isolines')
|
|
finally:
|
|
service_manager.quota_service.increment_total_service_use()
|
|
$$ LANGUAGE plpythonu SECURITY DEFINER STABLE PARALLEL RESTRICTED;
|