From 5fc7f2f9b4250b46f3dcbaea8222e11458a5e912 Mon Sep 17 00:00:00 2001
From: Gerald Schmittinger <gerald.schmittinger@ugent.be>
Date: Fri, 16 May 2025 12:49:10 +0200
Subject: [PATCH] =?UTF-8?q?feat(backend):=20Validatie=20dat=20targetAges?=
 =?UTF-8?q?=20aangegeven=20zijn=20voor=20ge=C3=BCploade=20leerobjecten.?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 .../src/services/learning-objects/learning-object-service.ts  | 2 +-
 .../learning-object-zip-processing-service.ts                 | 4 ++++
 backend/src/services/learning-paths/learning-path-service.ts  | 2 +-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/backend/src/services/learning-objects/learning-object-service.ts b/backend/src/services/learning-objects/learning-object-service.ts
index 1cc3cb78..6be10775 100644
--- a/backend/src/services/learning-objects/learning-object-service.ts
+++ b/backend/src/services/learning-objects/learning-object-service.ts
@@ -103,7 +103,7 @@ const learningObjectService = {
         const learningObjectRepo = getLearningObjectRepository();
         const learningObject = await learningObjectRepo.findByIdentifier(id);
         if (!learningObject) {
-            throw new NotFoundException('The specified learning object does not exist.');
+            throw new NotFoundException('learningObjectNotFound');
         }
         return learningObject.admins.map((admin) => admin.username);
     },
diff --git a/backend/src/services/learning-objects/learning-object-zip-processing-service.ts b/backend/src/services/learning-objects/learning-object-zip-processing-service.ts
index c92f456b..a0059ecc 100644
--- a/backend/src/services/learning-objects/learning-object-zip-processing-service.ts
+++ b/backend/src/services/learning-objects/learning-object-zip-processing-service.ts
@@ -68,6 +68,10 @@ function createLearningObject(metadata: LearningObjectMetadata, content: Buffer,
         callbackSchema: metadata.return_value?.callback_schema ? JSON.stringify(metadata.return_value.callback_schema) : '',
     };
 
+    if (!metadata.target_ages || metadata.target_ages.length === 0) {
+        throw new BadRequestException("errorTargetAgesMandatory");
+    }
+
     const learningObject = learningObjectRepo.create({
         admins: [],
         available: metadata.available ?? true,
diff --git a/backend/src/services/learning-paths/learning-path-service.ts b/backend/src/services/learning-paths/learning-path-service.ts
index 41dec92c..7579685a 100644
--- a/backend/src/services/learning-paths/learning-path-service.ts
+++ b/backend/src/services/learning-paths/learning-path-service.ts
@@ -150,7 +150,7 @@ const learningPathService = {
             )
         );
         if (learningObjectsOnPath.some(it => !it)) {
-            throw new BadRequestException("At least one of the specified learning objects does not exist.")
+            throw new BadRequestException("pathContainsNonExistingLearningObjects")
         }
 
         try {