57 lines
2.2 KiB
PL/PgSQL
57 lines
2.2 KiB
PL/PgSQL
CREATE TYPE isoline AS (center geometry(Geometry,4326), range integer, the_geom geometry(Multipolygon,4326));
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CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_here_routing_isolines(username TEXT, orgname TEXT, type TEXT, source geometry(Geometry, 4326), mode TEXT, range integer[], options text[] DEFAULT NULL)
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RETURNS SETOF isoline AS $$
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import json
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from cartodb_services.here import HereMapsRoutingIsoline
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from cartodb_services.metrics import QuotaService
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redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']
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user_routing_config = GD["user_routing_config_{0}".format(username)]
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# -- Check the quota
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quota_service = QuotaService(user_routing_config, redis_conn)
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if not quota_service.check_user_quota():
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plpy.error('You have reach the limit of your quota')
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try:
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client = HereMapsRoutingIsoline(user_routing_config.heremaps_app_id, user_routing_config.heremaps_app_code)
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#-- TODO: move this to a module function
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if source:
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lat = plpy.execute("SELECT ST_Y('%s') AS lat" % source)[0]['lat']
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lon = plpy.execute("SELECT ST_X('%s') AS lon" % source)[0]['lon']
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start_str = 'geo!%f,%f' % (lat, lon)
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else:
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source_str = None
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if type == 'isodistance':
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resp = client.calculate_isodistance(source_str, mode, range, options)
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else if type == 'isochrone':
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resp = client.calculate_isochrone(source_str, mode, range, options)
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if resp:
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result = []
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for isoline in resp:
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range = isoline['range']
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polyline = isoline['geom']
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multipolygon = cdb.here.types.geo_polyline_to_multipolygon(polyline)
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result.append([source_str, mode, range, multipolygon])
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quota_service.increment_isolines_service_use(len(resp))
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return result
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else:
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quota_service.increment_empty_geocoder_use()
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except BaseException as e:
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import sys, traceback
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type_, value_, traceback_ = sys.exc_info()
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quota_service.increment_failed_geocoder_use()
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error_msg = 'There was an error trying to obtain isodistances using here maps geocoder: {0}'.format(e)
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plpy.notice(traceback.format_tb(traceback_))
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plpy.error(error_msg)
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finally:
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quota_service.increment_total_geocoder_use()
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$$ LANGUAGE plpythonu SECURITY DEFINER; |