feat: groepen van een leerling geimplmenteerd in backend

backend/src/controllers/students.ts

@@ -1,7 +1,8 @@
 import { Request, Response } from 'express';
 import {
+    getStudentAssignments,
     getStudentClasses,
-    getStudentClassIds,
+    getStudentGroups,
     StudentService,
 } from '../services/students.js';
 import { ClassDTO } from '../interfaces/class.js';
@@ -52,12 +53,7 @@ export async function getStudentClassesHandler(
         const full = req.query.full === 'true';
         const username = req.params.id;
 
-        let classes: ClassDTO[] | string[];
-        if (full) {
-            classes = await getStudentClasses(username);
-        } else {
-            classes = await getStudentClassIds(username);
-        }
+        const classes = await getStudentClasses(username, full);
 
         res.json({
             classes: classes,
@@ -85,17 +81,23 @@ export async function getStudentAssignmentsHandler(
     const full = req.query.full === 'true';
     const username = req.params.id;
 
-    const classes = await getStudentClasses(username);
-
-    const assignments = (
-        await Promise.all(
-            classes.map(async (cls) => {
-                return await getAllAssignments(cls.id, full);
-            })
-        )
-    ).flat();
+    const assignments = getStudentAssignments(username, full);
 
     res.json({
         assignments: assignments,
     });
 }
+
+export async function getStudentGroupsHandler(
+    req: Request,
+    res: Response,
+): Promise<void> {
+    const full = req.query.full === 'true';
+    const username = req.params.id;
+
+    const groups = await getStudentGroups(username, full);
+    
+    res.json({
+        groups: groups,
+    });
+}

backend/src/data/assignments/group-repository.ts

@@ -1,6 +1,7 @@
 import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
 import { Group } from '../../entities/assignments/group.entity.js';
 import { Assignment } from '../../entities/assignments/assignment.entity.js';
+import { Student } from '../../entities/users/student.entity.js';
 
 export class GroupRepository extends DwengoEntityRepository<Group> {
     public findByAssignmentAndGroupNumber(
@@ -23,6 +24,14 @@ export class GroupRepository extends DwengoEntityRepository<Group> {
             populate: ['members'],
         });
     }
+    public findAllGroupsWithStudent(
+        student: Student
+    ): Promise<Group[]> {
+        return this.find(
+            { members: student },
+            { populate: ['members'] }
+        )
+    }
     public deleteByAssignmentAndGroupNumber(
         assignment: Assignment,
         groupNumber: number

backend/src/services/students.ts

@@ -1,10 +1,14 @@
 import {
     getClassRepository,
+    getGroupRepository,
     getStudentRepository,
 } from '../data/repositories.js';
 import { Class } from '../entities/classes/class.entity.js';
 import { Student } from '../entities/users/student.entity.js';
+import { AssignmentDTO } from '../interfaces/assignment.js';
 import { ClassDTO, mapToClassDTO } from '../interfaces/class.js';
+import { GroupDTO, mapToGroupDTO, mapToGroupDTOId } from '../interfaces/group.js';
+import { getAllAssignments } from './assignments.js';
 import { UserService } from './users.js';
 
 export class StudentService extends UserService<Student> {
@@ -13,7 +17,7 @@ export class StudentService extends UserService<Student> {
     }
 }
 
-async function fetchStudentClasses(username: string): Promise<Class[]> {
+export async function getStudentClasses(username: string, full: boolean): Promise<ClassDTO[] | string[]> {
     const studentRepository = getStudentRepository();
     const student = await studentRepository.findByUsername(username);
 
@@ -24,21 +28,49 @@ async function fetchStudentClasses(username: string): Promise<Class[]> {
     const classRepository = getClassRepository();
     const classes = await classRepository.findByStudent(student);
 
-    if (!classes) {
+    if (full) {
+        return classes.map(mapToClassDTO);
+    }
+
+    return classes.map((cls) => cls.classId);
+}
+
+export async function getStudentAssignments(username: string, full: boolean): Promise<AssignmentDTO[]> {
+    const studentRepository = getStudentRepository();
+    const student = await studentRepository.findByUsername(username);
+
+    if (!student) {
         return [];
     }
 
-    return classes;
+    const classRepository = getClassRepository();
+    const classes = await classRepository.findByStudent(student);
+
+    const assignments = (
+        await Promise.all(
+            classes.map(async (cls) => {
+                return await getAllAssignments(cls.classId, full);
+            })
+        )
+    ).flat();
+
+    return assignments;
 }
 
-export async function getStudentClasses(username: string): Promise<ClassDTO[]> {
-    const classes = await fetchStudentClasses(username);
-    return classes.map(mapToClassDTO);
-}
+export async function getStudentGroups(username: string, full: boolean): Promise<GroupDTO[]> {
+    const studentRepository = getStudentRepository();
+    const student = await studentRepository.findByUsername(username);
 
-export async function getStudentClassIds(username: string): Promise<string[]> {
-    const classes = await fetchStudentClasses(username);
-    return classes.map((cls) => {
-        return cls.classId;
-    }); // 'class' is a native keyword
+    if (!student) {
+        return [];
+    }
+
+    const groupRepository = getGroupRepository();
+    const groups = await groupRepository.findAllGroupsWithStudent(student);
+
+    if (full) {
+        return groups.map(mapToGroupDTO);
+    }
+
+    return groups.map(mapToGroupDTOId);
 }