Function headless_lms_models::user_exercise_task_states::upsert_with_grading

pub async fn upsert_with_grading(
    conn: &mut PgConnection,
    user_exercise_slide_state_id: Uuid,
    exercise_task_grading: &ExerciseTaskGrading
) -> ModelResult<UserExerciseTaskState>

Upserts user score from task grading results. The score can always increase or decrease, since they represent only a part of the whole user submission.