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

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));
+}