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");
}
public CourseCheckState Check(CourseCheckState courseCheckState)
{
CourseSelect courseSelect = courseCheckState.CourseSelect;
if (courseSelect.Student.Courses.Any(x => x.Id == courseSelect.Course.Id))
{
courseCheckState.IsValidate = false;
courseCheckState.Message = "Course Can't Select Twice";
}
return courseCheckState;
}
public CourseCheckState Check(CourseCheckState courseCheckState)
{
CourseSelect courseSelect = courseCheckState.CourseSelect;
if (courseSelect.Course == null)
{
courseCheckState.IsValidate = false;
courseCheckState.Message = "Course Can't Null";
}
return(courseCheckState);
}
public CourseCheckState Check(CourseCheckState courseCheckState)
{
foreach (ICourseCheck check in _courseCheck)
{
check.Check(courseCheckState);
if (!courseCheckState.IsValidate)
{
return(courseCheckState);
}
}
return(courseCheckState);
}
