connections: expose {from_,to}_wheelchair_boarding

closes #47

Co-Authored-By: Jannis R <mail@jannisr.de>

Author: magnusburton

lib/stop_times.js

@@ -364,6 +364,7 @@ WITH stop_times_based AS NOT MATERIALIZED (
 		from_stop_name,
 		from_station_id,
 		from_station_name,
+		from_wheelchair_boarding,
 
 		from_stop_headsign,
 		from_pickup_type,
@@ -396,7 +397,8 @@ WITH stop_times_based AS NOT MATERIALIZED (
 		to_stop_id,
 		to_stop_name,
 		to_station_id,
-		to_station_name
+		to_station_name,
+		to_wheelchair_boarding
 	FROM (
 		SELECT
 			trips.route_id,
@@ -413,6 +415,13 @@ WITH stop_times_based AS NOT MATERIALIZED (
 			from_stops.stop_name as from_stop_name,
 			from_stations.stop_id as from_station_id,
 			from_stations.stop_name as from_station_name,
+			-- todo: PR #47
+			coalesce(
+				nullif(from_stops.wheelchair_boarding, 'no_info_or_inherit'),
+				nullif(from_stations.wheelchair_boarding, 'no_info_or_inherit'),
+				'no_info_or_inherit'
+			) AS from_wheelchair_boarding,
+
 			stop_times.stop_headsign as from_stop_headsign,
 			stop_times.pickup_type as from_pickup_type,
 			stop_times.departure_time as departure_time,
@@ -426,10 +435,17 @@ WITH stop_times_based AS NOT MATERIALIZED (
 			to_stop_times.arrival_time as arrival_time,
 			to_stop_times.drop_off_type as to_drop_off_type,
 			to_stop_times.stop_headsign as to_stop_headsign,
+
 			to_stop_times.stop_id as to_stop_id,
 			to_stops.stop_name as to_stop_name,
 			to_stations.stop_id as to_station_id,
-			to_stations.stop_name as to_station_name
+			to_stations.stop_name as to_station_name,
+			-- todo: PR #47
+			coalesce(
+				nullif(to_stops.wheelchair_boarding, 'no_info_or_inherit'),
+				nullif(to_stations.wheelchair_boarding, 'no_info_or_inherit'),
+				'no_info_or_inherit'
+			) AS to_wheelchair_boarding
 		FROM "${opt.schema}".trips
 		LEFT JOIN "${opt.schema}".routes ON trips.route_id = routes.route_id
 		LEFT JOIN "${opt.schema}".agency ON (
@@ -501,6 +517,7 @@ SELECT
 	from_stop_name,
 	from_station_id,
 	from_station_name,
+	from_wheelchair_boarding,
 
 	from_stop_headsign,
 	from_pickup_type,
@@ -532,6 +549,7 @@ SELECT
 	to_stop_name,
 	to_station_id,
 	to_station_name,
+	to_wheelchair_boarding,
 
 	frequencies_row,
 	frequencies_it