private void PopulateAssignedCourseData(School school)
{
var allCourses = db.Courses;
var schoolCourses = new HashSet<int>(school.CoursesLearnedInSchool.Select(c => c.CourseID));
var viewModel = new List<AssignedCourseData>();
foreach (var course in allCourses)
{
viewModel.Add(new AssignedCourseData
{
CourseID = course.CourseID,
Name = course.Name,
Assigned = schoolCourses.Contains(course.CourseID)
});
}
ViewBag.Courses = viewModel;
}
private void UpdateSchoolCourses(string[] selectedCourses, School SchoolToUpdate)
{
if (selectedCourses == null)
{
SchoolToUpdate.CoursesLearnedInSchool = new List<Course>();
return;
}
var selectedCoursesHS = new HashSet<string>(selectedCourses);
var schoolCourses = new HashSet<int>
(SchoolToUpdate.CoursesLearnedInSchool.Select(c => c.CourseID));
foreach (var course in db.Courses)
{
if (selectedCoursesHS.Contains(course.CourseID.ToString()))
{
if (!schoolCourses.Contains(course.CourseID))
{
SchoolToUpdate.CoursesLearnedInSchool.Add(course);
}
}
else
{
if (schoolCourses.Contains(course.CourseID))
{
SchoolToUpdate.CoursesLearnedInSchool.Remove(course);
}
}
}
}
public ActionResult CreateSchool()
{
var school = new School();
school.CoursesLearnedInSchool = new List<Course>();
PopulateAssignedCourseData(school);
return View();
}