postgres DAL + New UI

src/dal/postgresDAL.js

@@ -1,4 +1,3 @@
-// src/dal/postgresdal.js
 import pg from "pg";
 
 const pool = new pg.Pool({
@@ -20,7 +19,6 @@ function toNumber(v) {
   return Number.isFinite(n) ? n : undefined;
 }
 
-/* Vehicles */
 
 export async function getVehicles() {
   const rows = await dbQuery(
@@ -71,7 +69,6 @@ export async function getVehicleById(id) {
   };
 }
 
-/* Routes */
 
 export async function getRoutes() {
   const rows = await dbQuery(`SELECT data FROM routes ORDER BY route_id`);
@@ -89,7 +86,6 @@ export async function getRouteById(routeId) {
   return rows[0]?.data || null;
 }
 
-/* Route paths */
 
 export async function getRoutePathsMap() {
   const rows = await dbQuery(`SELECT route_id, path FROM route_paths`);
@@ -111,7 +107,6 @@ export async function getRoutePath(routeId) {
   return rows[0]?.path || null;
 }
 
-/* Stations */
 
 function transformationStationRow(row) {
   return {
@@ -131,7 +126,6 @@ function transformationStationRow(row) {
 }
 
 export async function getStationsRaw() {
-  // For compatibility, just return the full array of normalized station rows.
   const rows = await dbQuery(`SELECT * FROM stations`);
   return rows;
 }
@@ -143,7 +137,6 @@ export async function getStations() {
 
 export async function getStopsByRoute(routeId) {
   if (routeId == null) return [];
-  // lines @> ARRAY[$1]::text[] means: lines contains this value
   const rows = await dbQuery(
     `SELECT * FROM stations WHERE lines @> ARRAY[$1]::text[]`,
     [String(routeId)]
@@ -163,3 +156,4 @@ export async function getStationById(id) {
   return transformationStationRow(rows[0]);
 }
 
+