implemented bike lendingstation relation

src/datasources/db/cargobikeAPI.ts

@@ -30,7 +30,7 @@ export class CargoBikeAPI extends DataSource {
      * @param param0 id of bike
      */
     async findCargoBikeById ({ id }:{id: any}) {
-        return await this.connection.manager.getRepository(CargoBike).findOne({ id: id });
+        return (await this.connection.manager.getRepository(CargoBike).findByIds([id], { relations: ['lendingStation'] }))[0];
         /* .createQueryBuilder()
             .select('cargoBike')
             .from(CargoBike, 'cargoBike')
@@ -42,19 +42,28 @@ export class CargoBikeAPI extends DataSource {
      * Updates CargoBike and return updated cargoBike
      * @param param0 cargoBike to be updated
      */
-    async updateCargoBike ({ cargoBike }:{ cargoBike: CargoBike }) {
+    async updateCargoBike ({ cargoBike }:{ cargoBike: any }) {
         const bike = await this.connection.manager.createQueryBuilder()
             .select('cargoBike')
             .from(CargoBike, 'cargoBike')
             .where('cargoBike.id = :id', { id: cargoBike.id })
             .getOne();
         if (bike) {
+            const lendingStationId = cargoBike.lendingStationId;
+            delete cargoBike.lendingStationId;
             await this.connection.manager
                 .createQueryBuilder()
                 .update(CargoBike)
                 .set({ ...cargoBike })
                 .where('id = :id', { id: bike.id })
                 .execute();
+            if (lendingStationId || lendingStationId === null) {
+                await this.connection.getRepository(CargoBike)
+                    .createQueryBuilder()
+                    .relation(CargoBike, 'lendingStation')
+                    .of(cargoBike.id)
+                    .set(lendingStationId);
+            }
             return await this.findCargoBikeById({ id: bike.id });
         } else {
             return new GraphQLError('ID not in database');

src/datasources/db/lendingstationAPI.ts

@@ -1,6 +1,7 @@
 import { DataSource } from 'apollo-datasource';
 import { GraphQLError } from 'graphql';
 import { Connection, getConnection } from 'typeorm';
+import { CargoBike } from '../../model/CargoBike';
 import { LendingStation } from '../../model/LendingStation';
 
 export class LendingStationAPI extends DataSource {
@@ -24,9 +25,8 @@ export class LendingStationAPI extends DataSource {
      */
     async getLendingStations () {
         return await this.connection.manager
-            .createQueryBuilder()
+            .createQueryBuilder(LendingStation, 'lendingStation')
-            .select('lendingStation')
+            .leftJoinAndSelect('CargoBike', 'cargoBike', 'cargoBike.lendingStation = lendingStation.id')// ('lendingStation.cargoBikes', 'cargoBike.lendingStation', 'cargoBike', 'cargoBike.lendingStationId = lendingStation.id')
-            .from(LendingStation, 'lendingStation')
             .getMany() || new GraphQLError('Internal Server Error: could not query data from table lendingStation');
     }
 

src/model/CargoBike.ts

@@ -131,7 +131,8 @@ export class CargoBike extends Bike {
 
     // This relation is a little redundant because one could also check all LoanPeriods for current station
     @ManyToOne(type => LendingStation, lendingStation => lendingStation.cargoBikes, {
-        nullable: true
+        nullable: true,
+        eager: true
     })
     lendingStation: LendingStation;
 

src/model/LendingStation.ts

@@ -23,7 +23,9 @@ export class LendingStation {
     @OneToMany(type => LoanPeriod, loanPeriod => loanPeriod.lendingStation)
     loanPeriods: LoanPeriod[];
 
-    @OneToMany(type => CargoBike, cargoBike => cargoBike.lendingStation)
+    @OneToMany(type => CargoBike, cargoBike => cargoBike.lendingStation, {
+        eager: false
+    })
     cargoBikes: CargoBike[];
 
     @ManyToOne(type => Organization, organization => organization.lendingStations)

src/schema/type-defs.ts

@@ -39,7 +39,7 @@ type CargoBike {
     provider: Provider
     coordinator:  Participant
     insuranceData: InsuranceData!
-    lendingstation: LendingStation
+    lendingStation: LendingStation
     taxes: Taxes
     "null if not locked by other user"
     lockedBy: ID
@@ -104,7 +104,7 @@ input CargoBikeUpdateInput {
     dimensionsAndLoad: DimensionsAndLoadUpdateInput
     "Refers to equipment that is not unique. See kommentierte info tabelle -> Fragen -> Frage 2"
     otherEquipment: [String]
-
+    lendingStationId: ID
     "Sticker State"
     stickerBikeNameState: StickerBikeNameState
     note: String
@@ -518,6 +518,9 @@ type LendingStation {
     address: Address!
     loanTimes: LoanTimes
     loanPeriods: [LoanPeriod]!
+    cargoBikes: [CargoBike]
+    "Totola Amount of cargoBikes currently assigned to the lending station"
+    numCargoBikes: Int!
 }
 
 input LendingStationCreateInput {
@@ -535,6 +538,7 @@ input LendingStationUpdateInput {
     address: AddressUpdateInput
     loanTimes: LoanTimesInput
     loanPeriods: [LoanPeriodUpdateInput]
+    
 }
 
 """