Merge branch 'feat/service-layer' into feat/service-layer-adriaan

# Conflicts:
#	backend/src/controllers/classes.ts
#	backend/src/controllers/students.ts
#	backend/src/data/users/teacher-repository.ts
#	backend/src/interfaces/assignment.ts
#	backend/src/interfaces/teacher.ts
#	backend/src/routes/classes.ts
#	backend/src/services/assignments.ts
#	backend/src/services/class.ts
#	backend/src/services/students.ts
#	backend/src/util/translation-helper.ts

backend/src/data/classes/class-repository.ts

@@ -1,6 +1,7 @@
 import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
 import { Class } from '../../entities/classes/class.entity.js';
 import { Student } from '../../entities/users/student.entity.js';
+import {Teacher} from "../../entities/users/teacher.entity";
 
 export class ClassRepository extends DwengoEntityRepository<Class> {
     public findById(id: string): Promise<Class | null> {
@@ -18,4 +19,11 @@ export class ClassRepository extends DwengoEntityRepository<Class> {
             { populate: ["students", "teachers"] } // voegt student en teacher objecten toe
         )
     }
+
+    public findByTeacher(teacher: Teacher): Promise<Class[]> {
+        return this.find(
+            { teachers: teacher },
+            { populate: ["students", "teachers"] }
+        );
+    }
 }

backend/src/data/content/learning-object-repository.ts

@@ -1,6 +1,7 @@
 import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
 import { LearningObject } from '../../entities/content/learning-object.entity.js';
 import { LearningObjectIdentifier } from '../../entities/content/learning-object-identifier.js';
+import {Teacher} from "../../entities/users/teacher.entity";
 
 export class LearningObjectRepository extends DwengoEntityRepository<LearningObject> {
     public findByIdentifier(
@@ -13,4 +14,11 @@ export class LearningObjectRepository extends DwengoEntityRepository<LearningObj
         });
     }
     // This repository is read-only for now since creating own learning object is an extension feature.
+
+    public findAllByTeacher(teacher: Teacher): Promise<LearningObject[]> {
+        return this.find(
+            { admins: teacher },
+            { populate: ['admins'] } // Make sure to load admin relations
+        );
+    }
 }

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

@@ -2,6 +2,7 @@ import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
 import { Question } from '../../entities/questions/question.entity.js';
 import { LearningObjectIdentifier } from '../../entities/content/learning-object-identifier.js';
 import { Student } from '../../entities/users/student.entity.js';
+import {LearningObject} from "../../entities/content/learning-object.entity";
 
 export class QuestionRepository extends DwengoEntityRepository<Question> {
     public createQuestion(question: {
@@ -42,4 +43,17 @@ export class QuestionRepository extends DwengoEntityRepository<Question> {
             sequenceNumber: sequenceNumber,
         });
     }
+
+    public async findAllByLearningObjects(learningObjects: LearningObject[]): Promise<Question[]> {
+        const objectIdentifiers = learningObjects.map(lo => ({
+                learningObjectHruid: lo.hruid,
+                learningObjectLanguage: lo.language,
+                learningObjectVersion: lo.version
+            }));
+
+        return this.findAll({
+            where: { $or: objectIdentifiers },
+            orderBy: { timestamp: 'ASC' },
+        });
+    }
 }