fix: Test- en linting-errors opgelost

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

@@ -61,28 +61,36 @@ export class SubmissionRepository extends DwengoEntityRepository<Submission> {
 
     /**
      * Looks up all submissions for the given learning object which were submitted as part of the given assignment.
-     * When forGroup is set, only the submissions of the given group are shown.
      */
     public async findAllSubmissionsForLearningObjectAndAssignment(
         loId: LearningObjectIdentifier,
         assignment: Assignment,
-        forGroup?: number
     ): Promise<Submission[]> {
-        const onBehalfOf = forGroup
-            ? {
-                  assignment,
-                  groupNumber: forGroup
-              }
-            : {
-                  assignment,
-              };
-
         return this.findAll({
             where: {
                 learningObjectHruid: loId.hruid,
                 learningObjectLanguage: loId.language,
                 learningObjectVersion: loId.version,
-                onBehalfOf,
+                onBehalfOf: {
+                    assignment
+                }
+            },
+        });
+    }
+
+    /**
+     * Looks up all submissions for the given learning object which were submitted by the given group
+     */
+    public async findAllSubmissionsForLearningObjectAndGroup(
+        loId: LearningObjectIdentifier,
+        group: Group,
+    ): Promise<Submission[]> {
+        return this.findAll({
+            where: {
+                learningObjectHruid: loId.hruid,
+                learningObjectLanguage: loId.language,
+                learningObjectVersion: loId.version,
+                onBehalfOf: group
             },
         });
     }