Ru.GameSchool.DataLayer.Repository.Level.FixupCourse C# (CSharp) Méthode

        private void FixupCourse(Course previousValue)
        {
            if (previousValue != null && previousValue.Levels.Contains(this))
            {
                previousValue.Levels.Remove(this);
            }
    
            if (Course != null)
            {
                if (!Course.Levels.Contains(this))
                {
                    Course.Levels.Add(this);
                }
                if (CourseId != Course.CourseId)
                {
                    CourseId = Course.CourseId;
                }
            }
        }