public string Select(Course item)
{
CourseCheckState courseCheckState = new CourseCheckState
{
IsValidate = true
};
Student student = _studentDao.GetAll().SingleOrDefault(x => x.Id == item.StudentId);
List <Course> courseSelected = _courseDao.GetAll().Where(x => x.StudentId == student.Id).ToList();
student.Courses = courseSelected;
courseCheckState.CourseSelect = new CourseSelect {
Student = student,
Course = item
};
_courseValidation.Check(courseCheckState);
if (!courseCheckState.IsValidate)
{
return(courseCheckState.Message);
}
_courseDao.Create(item);
return("Course Select Success");
}