feat(backend): Vragen kunnen nu per leerobject, assignment en optioneel groepslid opgevraagd worden

backend/src/controllers/questions.ts

@@ -1,11 +1,28 @@
 import { Request, Response } from 'express';
-import { createQuestion, deleteQuestion, getAllQuestions, getAnswersByQuestion, getQuestion } from '../services/questions.js';
+import {
+    createQuestion,
+    deleteQuestion,
+    getAllQuestions,
+    getAnswersByQuestion,
+    getQuestion,
+    getQuestionsAboutLearningObjectInAssignment
+} from '../services/questions.js';
 import { FALLBACK_LANG, FALLBACK_SEQ_NUM } from '../config.js';
 import { LearningObjectIdentifier } from '../entities/content/learning-object-identifier.js';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { Language } from '@dwengo-1/common/util/language';
+import {AnswerDTO, AnswerId} from "@dwengo-1/common/interfaces/answer";
 
-function getObjectId(req: Request, res: Response): LearningObjectIdentifier | null {
+interface QuestionPathParams {
+    hruid: string;
+    version: string;
+}
+
+interface QuestionQueryParams {
+    lang: string;
+}
+
+function getObjectId(req: Request<QuestionPathParams, any, any, QuestionQueryParams>, res: Response): LearningObjectIdentifier | null {
     const { hruid, version } = req.params;
     const lang = req.query.lang;
 
@@ -21,7 +38,10 @@ function getObjectId(req: Request, res: Response): LearningObjectIdentifier | nu
     };
 }
 
-function getQuestionId(req: Request, res: Response): QuestionId | null {
+interface GetQuestionIdPathParams extends QuestionPathParams {
+    seq: string;
+}
+function getQuestionId(req: Request<GetQuestionIdPathParams, any, any, QuestionQueryParams>, res: Response): QuestionId | null {
     const seq = req.params.seq;
     const learningObjectIdentifier = getObjectId(req, res);
 
@@ -35,15 +55,35 @@ function getQuestionId(req: Request, res: Response): QuestionId | null {
     };
 }
 
-export async function getAllQuestionsHandler(req: Request, res: Response): Promise<void> {
+interface GetAllQuestionsQueryParams extends QuestionQueryParams {
+    classId?: string,
+    assignmentId?: number,
+    forStudent?: string,
+    full?: boolean
+}
+
+export async function getAllQuestionsHandler(
+    req: Request<QuestionPathParams, QuestionDTO[] | QuestionId[], unknown, GetAllQuestionsQueryParams>,
+    res: Response
+): Promise<void> {
     const objectId = getObjectId(req, res);
-    const full = req.query.full === 'true';
+    const full = req.query.full;
 
     if (!objectId) {
         return;
     }
-
-    const questions = await getAllQuestions(objectId, full);
+    let questions: QuestionDTO[] | QuestionId[];
+    if (req.query.classId && req.query.assignmentId) {
+        questions = await getQuestionsAboutLearningObjectInAssignment(
+            objectId,
+            req.query.classId,
+            req.query.assignmentId,
+            full ?? false,
+            req.query.forStudent
+        );
+    } else {
+        questions = await getAllQuestions(objectId, full ?? false);
+    }
 
     if (!questions) {
         res.status(404).json({ error: `Questions not found.` });
@@ -52,7 +92,10 @@ export async function getAllQuestionsHandler(req: Request, res: Response): Promi
     }
 }
 
-export async function getQuestionHandler(req: Request, res: Response): Promise<void> {
+export async function getQuestionHandler(
+    req: Request<GetQuestionIdPathParams, QuestionDTO[] | QuestionId[], unknown, QuestionQueryParams>,
+    res: Response
+): Promise<void> {
     const questionId = getQuestionId(req, res);
 
     if (!questionId) {
@@ -68,9 +111,15 @@ export async function getQuestionHandler(req: Request, res: Response): Promise<v
     }
 }
 
-export async function getQuestionAnswersHandler(req: Request, res: Response): Promise<void> {
+interface GetQuestionAnswersQueryParams extends QuestionQueryParams {
+    full: boolean
+}
+export async function getQuestionAnswersHandler(
+    req: Request<GetQuestionIdPathParams, {answers: AnswerDTO[] | AnswerId[]}, unknown, GetQuestionAnswersQueryParams>,
+    res: Response
+): Promise<void> {
     const questionId = getQuestionId(req, res);
-    const full = req.query.full === 'true';
+    const full = req.query.full;
 
     if (!questionId) {
         return;
@@ -102,7 +151,10 @@ export async function createQuestionHandler(req: Request, res: Response): Promis
     }
 }
 
-export async function deleteQuestionHandler(req: Request, res: Response): Promise<void> {
+export async function deleteQuestionHandler(
+    req: Request<GetQuestionIdPathParams, QuestionDTO, unknown, QuestionQueryParams>,
+    res: Response
+): Promise<void> {
     const questionId = getQuestionId(req, res);
 
     if (!questionId) {

backend/src/controllers/submissions.ts

@@ -1,13 +1,45 @@
 import { Request, Response } from 'express';
-import { createSubmission, deleteSubmission, getSubmission } from '../services/submissions.js';
+import {
+    createSubmission,
+    deleteSubmission,
+    getSubmission,
+    getSubmissionsForLearningObjectAndAssignment
+} from '../services/submissions.js';
 import { SubmissionDTO } from '@dwengo-1/common/interfaces/submission';
 import { Language, languageMap } from '@dwengo-1/common/util/language';
+import {Submission} from "../entities/assignments/submission.entity";
 
 interface SubmissionParams {
     hruid: string;
     id: number;
 }
 
+interface SubmissionQuery {
+    language: string,
+    version: number;
+}
+
+interface SubmissionsQuery extends SubmissionQuery {
+    classId: string,
+    assignmentId: number,
+    studentUsername?: string
+}
+
+export async function getSubmissionsHandler(
+    req: Request<SubmissionParams, Submission[], null, SubmissionsQuery>,
+    res: Response
+): Promise<void> {
+    const loHruid = req.params.hruid;
+    const lang = languageMap[req.query.language as string] || Language.Dutch;
+    const version = (req.query.version || 1) as number;
+
+    const submissions = await getSubmissionsForLearningObjectAndAssignment(
+        loHruid, lang, version, req.query.classId, req.query.assignmentId
+    );
+
+    res.json(submissions);
+}
+
 export async function getSubmissionHandler(req: Request<SubmissionParams>, res: Response): Promise<void> {
     const lohruid = req.params.hruid;
     const submissionNumber = Number(req.params.id);

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

@@ -6,6 +6,9 @@ export class AssignmentRepository extends DwengoEntityRepository<Assignment> {
     public async findByClassAndId(within: Class, id: number): Promise<Assignment | null> {
         return this.findOne({ within: within, id: id });
     }
+    public async findByClassIdAndAssignmentId(withinClass: string, id: number): Promise<Assignment | null> {
+        return this.findOne({ within: { classId: withinClass }, id: id });
+    }
     public async findAllByResponsibleTeacher(teacherUsername: string): Promise<Assignment[]> {
         return this.findAll({
             where: {

backend/src/data/questions/question-repository.ts

@@ -4,6 +4,7 @@ import { LearningObjectIdentifier } from '../../entities/content/learning-object
 import { Student } from '../../entities/users/student.entity.js';
 import { LearningObject } from '../../entities/content/learning-object.entity.js';
 import {Group} from "../../entities/assignments/group.entity";
+import {Assignment} from "../../entities/assignments/assignment.entity";
 
 export class QuestionRepository extends DwengoEntityRepository<Question> {
     public async createQuestion(question: { loId: LearningObjectIdentifier; author: Student; inGroup: Group, content: string }): Promise<Question> {
@@ -64,4 +65,34 @@ export class QuestionRepository extends DwengoEntityRepository<Question> {
             orderBy: { timestamp: 'DESC' }, // New to old
         });
     }
+
+    /**
+     * Looks up all questions for the given learning object which were asked as part of the given assignment.
+     * When forStudentUsername is set, only the questions within the given user's group are shown.
+     */
+    public async findAllQuestionsAboutLearningObjectInAssignment(
+        loId: LearningObjectIdentifier,
+        assignment: Assignment,
+        forStudentUsername?: string
+    ): Promise<Question[]> {
+        let inGroup = forStudentUsername ? {
+            assignment,
+            members: {
+                $some: {
+                    username: forStudentUsername
+                }
+            }
+        } : {
+            assignment
+        };
+
+        return this.findAll({
+            where: {
+                learningObjectHruid: loId.hruid,
+                learningObjectLanguage: loId.language,
+                learningObjectVersion: loId.version,
+                inGroup
+            }
+        });
+    }
 }

backend/src/routes/submissions.ts

@@ -1,13 +1,14 @@
 import express from 'express';
-import { createSubmissionHandler, deleteSubmissionHandler, getSubmissionHandler } from '../controllers/submissions.js';
+import {
+    createSubmissionHandler,
+    deleteSubmissionHandler,
+    getSubmissionHandler,
+    getSubmissionsHandler
+} from '../controllers/submissions.js';
 const router = express.Router({ mergeParams: true });
 
 // Root endpoint used to search objects
-router.get('/', (_req, res) => {
-    res.json({
-        submissions: ['0', '1'],
-    });
-});
+router.get('/', getSubmissionsHandler);
 
 router.post('/:id', createSubmissionHandler);
 

backend/src/services/questions.ts

@@ -1,5 +1,5 @@
 import {
-    getAnswerRepository,
+    getAnswerRepository, getAssignmentRepository,
     getClassRepository,
     getGroupRepository,
     getQuestionRepository
@@ -16,6 +16,25 @@ import { AnswerDTO, AnswerId } from '@dwengo-1/common/interfaces/answer';
 import { AssignmentDTO } from "@dwengo-1/common/interfaces/assignment";
 import { mapToAssignment } from "../interfaces/assignment";
 
+export async function getQuestionsAboutLearningObjectInAssignment(
+    loId: LearningObjectIdentifier,
+    classId: string,
+    assignmentId: number,
+    full: boolean,
+    studentUsername?: string
+): Promise<QuestionDTO[] | QuestionId[]> {
+    const assignment = await getAssignmentRepository()
+        .findByClassIdAndAssignmentId(classId, assignmentId);
+
+    const questions = await getQuestionRepository()
+        .findAllQuestionsAboutLearningObjectInAssignment(loId, assignment!, studentUsername);
+
+    if (full)
+        return questions.map(q => mapToQuestionDTO(q));
+    else
+        return questions.map(q => mapToQuestionDTOId(q));
+}
+
 export async function getAllQuestions(id: LearningObjectIdentifier, full: boolean): Promise<QuestionDTO[] | QuestionId[]> {
     const questionRepository: QuestionRepository = getQuestionRepository();
     const questions = await questionRepository.findAllQuestionsAboutLearningObject(id);

backend/src/services/submissions.ts

@@ -1,4 +1,4 @@
-import { getSubmissionRepository } from '../data/repositories.js';
+import {getAssignmentRepository, getSubmissionRepository} from '../data/repositories.js';
 import { LearningObjectIdentifier } from '../entities/content/learning-object-identifier.js';
 import { mapToSubmission, mapToSubmissionDTO } from '../interfaces/submission.js';
 import { SubmissionDTO } from '@dwengo-1/common/interfaces/submission';
@@ -55,3 +55,24 @@ export async function deleteSubmission(
 
     return submission;
 }
+
+/**
+ * Returns all the submissions made by on behalf of any group the given student is in.
+ */
+export async function getSubmissionsForLearningObjectAndAssignment(
+    learningObjectHruid: string,
+    language: Language,
+    version: number,
+    classId: string,
+    assignmentId: number,
+    studentUsername?: string
+): Promise<SubmissionDTO[]> {
+    const loId = new LearningObjectIdentifier(learningObjectHruid, language, version);
+    const assignment = await getAssignmentRepository()
+                                                .findByClassIdAndAssignmentId(classId, assignmentId);
+
+    const submissions = await getSubmissionRepository()
+                    .findAllSubmissionsForLearningObjectAndAssignment(loId, assignment!, studentUsername);
+
+    return submissions.map(s => mapToSubmissionDTO(s));
+}