feat: DELETE op assignment geimplementeerd

backend/src/controllers/assignments.ts

@@ -1,5 +1,5 @@
 import { Request, Response } from 'express';
-import { createAssignment, getAllAssignments, getAssignment, getAssignmentsSubmissions } from '../services/assignments.js';
+import { createAssignment, deleteAssignment, getAllAssignments, getAssignment, getAssignmentsSubmissions } from '../services/assignments.js';
 import { AssignmentDTO } from '@dwengo-1/common/interfaces/assignment';
 import {requireFields} from "./error-helper";
 import {BadRequestException} from "../exceptions/bad-request-exception";
@@ -42,6 +42,18 @@ export async function getAssignmentHandler(req: Request, res: Response): Promise
     res.json({ assignment });
 }
 
+export async function deleteAssignmentHandler(req: Request, res: Response): Promise<void> {
+    const id = Number(req.params.id);
+    const classid = req.params.classid;
+    requireFields({ id, classid });
+
+    if (isNaN(id)) {
+        throw new BadRequestException("Assignment id should be a number");
+    }
+
+    const assignment = await deleteAssignment(classid, id); 
+}
+
 export async function getAssignmentsSubmissionsHandler(req: Request, res: Response): Promise<void> {
     const classid = req.params.classid;
     const assignmentNumber = Number(req.params.id);

backend/src/routes/assignments.ts

@@ -1,6 +1,7 @@
 import express from 'express';
 import {
     createAssignmentHandler,
+    deleteAssignmentHandler,
     getAllAssignmentsHandler,
     getAssignmentHandler,
     getAssignmentsSubmissionsHandler,
@@ -9,14 +10,14 @@ import groupRouter from './groups.js';
 
 const router = express.Router({ mergeParams: true });
 
-// Root endpoint used to search objects
 router.get('/', getAllAssignmentsHandler);
 
 router.post('/', createAssignmentHandler);
 
-// Information about an assignment with id 'id'
 router.get('/:id', getAssignmentHandler);
 
+router.delete('/:id', deleteAssignmentHandler);
+
 router.get('/:id/submissions', getAssignmentsSubmissionsHandler);
 
 router.get('/:id/questions', (_req, res) => {

backend/src/services/assignments.ts

@@ -57,6 +57,16 @@ export async function getAssignment(classid: string, id: number): Promise<Assign
     return mapToAssignmentDTO(assignment);
 }
 
+export async function deleteAssignment(classid: string, id: number): Promise<AssignmentDTO> {
+    const assignment = await fetchAssignment(classid, id);
+    const cls = await fetchClass(classid);
+
+    const assignmentRepository = getAssignmentRepository();
+    await assignmentRepository.deleteByClassAndId(cls, id);
+
+    return mapToAssignmentDTO(assignment);
+}
+
 export async function getAssignmentsSubmissions(
     classid: string,
     assignmentNumber: number,