public void Save(IEnumerable<SubjectViewModel> subjects, Semester semester)
{
var originalSubjects = subjectService.All().Where(s => s.SemesterId == semester.Id);
var modification = CollectionModificationResolver.Resolve(subjects.Where(s => IdChecker(s.Id)), originalSubjects,
(income, viewModel) =>
income.Id == long.Parse(viewModel.Id));
foreach (var item in modification.Modified)
{
SaveSubject(item.Key, item.Value);
}
AddNewSubjects(semester, subjects.Where(s => !IdChecker(s.Id)));
AddNewSubjects(semester, modification.Added);
foreach (var subject in modification.Deleted)
{
subjectService.Delete(subject);
}
}
public void Save(IEnumerable<SemesterViewModel> semesters, Curriculum curriculum)
{
var originalSemesters = semesterService.All().Where(s => s.CurriculumId == curriculum.Id);
var modification = CollectionModificationResolver.Resolve(semesters, originalSemesters,
(income, viewModel) => income.Id == viewModel.Id);
foreach (var item in modification.Modified)
{
SaveSemester(item.Key, item.Value);
}
foreach (var item in modification.Added)
{
var semester = new Semester { Id = item.Id, Curriculum = curriculum };
SaveSemester(item, semester);
}
foreach (var semester in modification.Deleted)
{
subjectManagementService.Delete(semester.Subjects);
semesterService.Delete(semester);
}
}
private void SaveSemester(SemesterViewModel viewModel, Semester semester)
{
semesterService.Save(semester);
Mapper.Map<SemesterViewModel, Semester>(viewModel, semester);
subjectManagementService.Save(viewModel.Subjects, semester);
}
private void AddNewSubjects(Semester semester, IEnumerable<SubjectViewModel> subjectViewModels)
{
foreach (var item in subjectViewModels)
{
var subject = new Subject();
if (IdChecker(item.Id))
{
var dbSubject = subjectService.CreateOrOpen(long.Parse(item.Id));
Mapper.Map<Subject, Subject>(dbSubject, subject);
subject.Id = 0;
}
else
{
subject.Id = 0;
subject.Name = SubjectIdPrefixHelper.Trim(item.Id);
}
subject.Semester = semester;
SaveSubject(item, subject);
}
}
