public string Save(Course course) { bool isCourseNameExists = courseGetway.IsCourseNameExists(course.CourseName); bool isCourseCodeExists = courseGetway.IsCourseCodeExists(course.CourseCode); if (isCourseNameExists) { return("Course Name Alardy Exists"); } else if (isCourseCodeExists) { return("Course Code Alardy Exists"); } else { int rowAffact = courseGetway.Save(course); if (rowAffact > 0) { return("Course Recoard Add Succefull"); } return("Course Recoard Add Failed"); } }