scanstation pagination

ref #205

src/controllers/ScanStationController.ts

@@ -1,6 +1,6 @@
 import { Authorized, Body, Delete, Get, JsonController, OnUndefined, Param, Post, Put, QueryParam } from 'routing-controllers';
 import { OpenAPI, ResponseSchema } from 'routing-controllers-openapi';
-import { getConnectionManager, Repository } from 'typeorm';
+import { Repository, getConnectionManager } from 'typeorm';
 import { ScanStationHasScansError, ScanStationIdsNotMatchingError, ScanStationNotFoundError } from '../errors/ScanStationErrors';
 import { TrackNotFoundError } from '../errors/TrackErrors';
 import { CreateScanStation } from '../models/actions/create/CreateScanStation';
@@ -26,9 +26,16 @@ export class ScanStationController {
 	@Authorized("STATION:GET")
 	@ResponseSchema(ResponseScanStation, { isArray: true })
 	@OpenAPI({ description: 'Lists all stations. <br> This includes their associated tracks.' })
-	async getAll() {
+	async getAll(@QueryParam("page", { required: false }) page: number, @QueryParam("page_size", { required: false }) page_size: number = 100) {
 		let responseStations: ResponseScanStation[] = new Array<ResponseScanStation>();
-		const stations = await this.stationRepository.find({ relations: ['track'] });
+		let stations: Array<ScanStation>;
+
+		if (page) {
+			stations = await this.stationRepository.find({ relations: ['track'], skip: page * page_size, take: page_size });
+		} else {
+			stations = await this.stationRepository.find({ relations: ['track'] });
+		}
+
 		stations.forEach(station => {
 			responseStations.push(station.toResponse());
 		});