private void UpdateEnrollmentsStudents(User student)
{
//Get student identifier
var identifier = student.ToIdentifier();
//Get modules runs for that student
var moduleRunStudentsFilter = Builders <ModuleRun> .Filter.AnyEq(x => x.Students, identifier);
var oldIds = ModuleRuns.Find(moduleRunStudentsFilter).Project(x => x.Id).ToList();
//Get student enrollments
var studentEnrollmentsFilter = Builders <ModuleRun> .Filter.In(x => x.Id, student.Enrollments.Select(x => x.Id));
var newIds = ModuleRuns.Find(studentEnrollmentsFilter).Project(x => x.Id).ToList();
//Remove enrollments not present, ignoring enrollments we want to insert
oldIds.Except(newIds).ToList().ForEach(runId =>
{
var moduleRunIdFilter = Builders <ModuleRun> .Filter.Eq(x => x.Id, runId);
var moduleRunStudentsUpdate = Builders <ModuleRun> .Update.Pull(x => x.Students, identifier);
ModuleRuns.UpdateOne(moduleRunIdFilter, moduleRunStudentsUpdate);
});
//Insert new set of enrollments, ignoring enrollments already present
newIds.Except(oldIds).ToList().ForEach(runId =>
{
var moduleRunIdFilter = Builders <ModuleRun> .Filter.Eq(x => x.Id, runId);
var moduleRunStudentsUpdate = Builders <ModuleRun> .Update.Push(x => x.Students, identifier);
ModuleRuns.UpdateOne(moduleRunIdFilter, moduleRunStudentsUpdate);
});
}
/// <summary>
/// inside this method we call the rest api and retrieve a data
/// </summary>
/// <returns></returns>
protected async override Task OnInitializedAsync()
{
int.TryParse(Id, out int planId);
if (planId != 0)
{
Plan = await PlanService.GetPlan(int.Parse(Id));
AutumnSemester = Plan.AutumnSemester;
SpringSemester = Plan.SpringSemester;
Semesters = new List <SemesterDto> {
AutumnSemester, SpringSemester
};
SemesterId = Semester.SemesterId.ToString();
ModuleId = Module.ModuleId.ToString();
Lmr = new LecturerModuleRunDto();
SelectedPlanId = Plan.Id;
ListLmr = (await LecturerModuleRunService.GetLecturerModuleRuns()).ToList();
foreach (var sem in Semesters)
{
foreach (var mr in sem.ModuleRuns)
{
ModuleRuns.Add(mr);
}
}
await ShowLastYearPlan();
}
else
{
Plan = new PlanDto {
};
Semester = new SemesterDto {
};
Module = new ModuleDto {
};
ListLmr = new List <LecturerModuleRunDto> {
};
}
Plans = (await PlanService.GetPlans()).ToList();
ModuleRuns = (await ModuleRunService.GetModuleRuns()).ToList();
Modules = (await ModuleService.GetModules()).ToList();
Lecturers = (await LecturerService.GetLecturers()).ToList();
LecturerGroups = (await LecturerGroupService.GetLecturerGroups()).ToList();
}
