Remove unnecessary assignmentId

Author: ZiyaSelim

src/main/java/de/unistuttgart/iste/meitrex/assignment_service/controller/UmlExerciseController.java

@@ -38,11 +38,11 @@ public UmlExercise updateTutorSolution(final UmlExerciseMutation mutation,
     }
 
     @SchemaMapping(typeName = "UmlExerciseMutation")
-    public UmlStudentSolution createUmlSolution(@Argument UUID assessmentId,
+    public UmlStudentSolution createUmlSolution(final UmlExerciseMutation mutation,
                                                 @Argument UUID studentId,
                                                 @Argument boolean createFromPrevious) {
-        log.info("Mutation: createUmlSolution for assessmentId={}, studentId={}", assessmentId, studentId);
-        return umlExerciseService.createNewSolution(assessmentId, studentId, createFromPrevious);
+        log.info("Mutation: createUmlSolution for assessmentId={}, studentId={}", mutation.getAssessmentId(), studentId);
+        return umlExerciseService.createNewSolution(mutation.getAssessmentId(), studentId, createFromPrevious);
     }
 
     @SchemaMapping(typeName = "UmlExerciseMutation")

src/main/resources/graphql/service/mutation.graphqls

@@ -108,7 +108,7 @@ type UmlExerciseMutation {
     """
     Creates a new solution attempt for a student.
     """
-    createUmlSolution(assessmentId: UUID!, studentId: UUID!, createFromPrevious: Boolean!): UmlStudentSolution!
+    createUmlSolution(studentId: UUID!, createFromPrevious: Boolean!): UmlStudentSolution!
 
     """
     Saves progress or finalizes a student's solution depending on the submit flag.