public ActionResult Preferences(string id)
{
StudentPrefViewModel spv = new StudentPrefViewModel();
spv.Student = studentDAL.GetStudentById(id);
spv.AllCompanies = companyDAL.GetAllCompanies();
spv.Student.Preferences = preferencesDAL.GetPreferredCompaniesByStudentId(id);
return(View("Preferences", spv));
}