public int Create(GameCourse course)
        {
            this.courses.Add(course);

            this.courses.Save();

            return(course.Id);
        }
        public void Update(int id, GameCourse course)
        {
            var entityToUpdate = this.courses.GetById(id);

            entityToUpdate.Title       = course.Title;
            entityToUpdate.Description = course.Description;
            entityToUpdate.Images      = course.Images;
            entityToUpdate.Coaches     = course.Coaches;
            entityToUpdate.Traineis    = course.Traineis;

            this.courses.Save();
        }