Initial
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using LehrerApp.Core.Interfaces;
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using LehrerApp.Core.Models;
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using LehrerApp.Core.Services;
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namespace LehrerApp.Desktop.ViewModels.Groups;
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public partial class AddGroupDialogViewModel : ObservableObject
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{
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private readonly IGroupRepository _groups;
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private readonly SchoolYearService _schoolYearService;
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[ObservableProperty] private string _name = "";
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[ObservableProperty] private string _subject = "";
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[ObservableProperty] private GroupType _type = GroupType.Course;
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[ObservableProperty] private int _gradeLevel = 10;
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[ObservableProperty] private GradingSystem _gradingSystem = GradingSystem.Grades1To6;
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[ObservableProperty] private int? _hoursPerWeek;
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[ObservableProperty] private string _selectedSchoolYear = "";
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[ObservableProperty] private string _validationMessage = "";
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public List<string> SchoolYears { get; }
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public List<GroupTypeItem> GroupTypes { get; } =
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[
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new(GroupType.Course, "Fachkurs"),
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new(GroupType.Class, "Klassenverband"),
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];
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public List<GradingSystemItem> GradingSystems { get; } =
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[
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new(GradingSystem.Grades1To6, "Noten 1–6 (Sek I)"),
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new(GradingSystem.Points0To15, "Punkte 0–15 (Oberstufe)"),
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];
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// Wird vom Dialog aufgerufen wenn OK geklickt wurde
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public LearningGroup? Result { get; private set; }
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public AddGroupDialogViewModel(
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IGroupRepository groups,
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SchoolYearService schoolYearService)
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{
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_groups = groups;
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_schoolYearService = schoolYearService;
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SchoolYears = schoolYearService.RecentSchoolYears(3);
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SelectedSchoolYear = schoolYearService.CurrentSchoolYear();
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// Automatisch Notensystem vorschlagen wenn Klassenstufe sich ändert
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PropertyChanged += (_, e) =>
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{
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if (e.PropertyName == nameof(GradeLevel))
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GradingSystem = GradeLevel >= 11
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? GradingSystem.Points0To15
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: GradingSystem.Grades1To6;
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};
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}
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[RelayCommand]
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private bool Save()
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{
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// Validierung
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if (string.IsNullOrWhiteSpace(Name))
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{
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ValidationMessage = "Bitte einen Namen eingeben.";
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return false;
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}
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if (GradeLevel is < 1 or > 13)
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{
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ValidationMessage = "Klassenstufe muss zwischen 1 und 13 liegen.";
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return false;
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}
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Result = new LearningGroup
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{
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Name = Name.Trim(),
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Subject = string.IsNullOrWhiteSpace(Subject) ? null : Subject.Trim(),
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Type = Type,
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GradeLevel = GradeLevel,
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GradingSystem = GradingSystem,
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SchoolYear = SelectedSchoolYear,
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HoursPerWeek = HoursPerWeek,
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};
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_groups.Save(Result);
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ValidationMessage = "";
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return true;
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}
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}
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public record GroupTypeItem(GroupType Value, string Label);
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public record GradingSystemItem(GradingSystem Value, string Label);
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208
LehrerApp.Desktop/ViewModels/Groups/GroupViewModels.cs
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208
LehrerApp.Desktop/ViewModels/Groups/GroupViewModels.cs
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@@ -0,0 +1,208 @@
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using LehrerApp.Core.Interfaces;
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using LehrerApp.Core.Models;
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using LehrerApp.Core.Services;
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using System.Collections.ObjectModel;
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namespace LehrerApp.Desktop.ViewModels.Groups;
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// ── Gruppenliste ──────────────────────────────────────────────────────────────
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public partial class GroupListViewModel : ObservableObject
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{
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private readonly IGroupRepository _groups;
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private readonly SchoolYearService _schoolYearService;
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[ObservableProperty] private string _selectedSchoolYear = "";
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[ObservableProperty] private string _searchText = "";
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[ObservableProperty] private GroupListItem? _selectedGroup;
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public ObservableCollection<string> SchoolYears { get; } = [];
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public ObservableCollection<GroupListItem> Groups { get; } = [];
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public GroupListViewModel(
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IGroupRepository groups,
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SchoolYearService schoolYearService)
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{
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_groups = groups;
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_schoolYearService = schoolYearService;
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foreach (var y in schoolYearService.RecentSchoolYears())
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SchoolYears.Add(y);
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SelectedSchoolYear = schoolYearService.CurrentSchoolYear();
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LoadGroups();
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}
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partial void OnSelectedSchoolYearChanged(string value) => LoadGroups();
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partial void OnSearchTextChanged(string value) => LoadGroups();
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private void LoadGroups()
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{
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Groups.Clear();
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var all = _groups.GetBySchoolYear(SelectedSchoolYear);
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var filtered = string.IsNullOrWhiteSpace(SearchText)
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? all
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: all.Where(g =>
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g.Name.Contains(SearchText, StringComparison.OrdinalIgnoreCase) ||
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(g.Subject?.Contains(SearchText, StringComparison.OrdinalIgnoreCase) ?? false));
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foreach (var g in filtered)
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Groups.Add(new GroupListItem(g));
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}
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[RelayCommand]
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private void AddGroup()
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{
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// TODO: Dialog öffnen
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}
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[RelayCommand]
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private void Refresh() => LoadGroups();
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}
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public class GroupListItem
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{
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public Guid Id { get; }
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public string Name { get; }
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public string Subject { get; }
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public string SchoolYear { get; }
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public int GradeLevel { get; }
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public string TypeLabel { get; }
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public string GradingLabel { get; }
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public GroupListItem(LearningGroup g)
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{
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Id = g.Id;
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Name = g.Name;
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Subject = g.Subject ?? "";
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SchoolYear = g.SchoolYear;
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GradeLevel = g.GradeLevel;
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TypeLabel = g.Type == GroupType.Class ? "Klasse" : "Kurs";
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GradingLabel = g.GradingSystem == GradingSystem.Grades1To6
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? "Noten 1–6"
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: "Punkte 0–15";
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}
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}
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// ── Gruppendetail (Tab-Navigation) ────────────────────────────────────────────
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public partial class GroupDetailViewModel : ObservableObject
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{
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private readonly IGroupRepository _groups;
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private readonly IStudentRepository _students;
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private readonly IEnrollmentRepository _enrollments;
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private readonly IExamRepository _exams;
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private readonly SchoolYearService _schoolYearService;
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[ObservableProperty] private LearningGroup? _group;
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[ObservableProperty] private string _groupTitle = "";
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[ObservableProperty] private int _studentCount;
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[ObservableProperty] private GroupTab _activeTab = GroupTab.Overview;
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// Sub-ViewModels für Tabs – lazy geladen
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public ObservableCollection<StudentSummary> Students { get; } = [];
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public ObservableCollection<ExamSummary> Exams { get; } = [];
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public GroupDetailViewModel(
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IGroupRepository groups,
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IStudentRepository students,
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IEnrollmentRepository enrollments,
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IExamRepository exams,
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SchoolYearService schoolYearService)
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{
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_groups = groups;
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_students = students;
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_enrollments = enrollments;
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_exams = exams;
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_schoolYearService = schoolYearService;
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}
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public void LoadGroup(Guid groupId)
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{
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Group = _groups.GetById(groupId);
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if (Group is null) return;
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GroupTitle = $"{Group.Name} · {Group.SchoolYear}";
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LoadStudents();
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LoadExams();
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}
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[RelayCommand]
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private void SwitchTab(GroupTab tab)
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{
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ActiveTab = tab;
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}
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private void LoadStudents()
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{
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if (Group is null) return;
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Students.Clear();
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var enrolled = _students.GetByGroup(Group.Id, Group.SchoolYear);
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StudentCount = enrolled.Count;
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foreach (var s in enrolled)
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Students.Add(new StudentSummary(s));
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}
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private void LoadExams()
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{
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if (Group is null) return;
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Exams.Clear();
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foreach (var e in _exams.GetByGroup(Group.Id))
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Exams.Add(new ExamSummary(e));
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}
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[RelayCommand]
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private void AddStudent()
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{
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// TODO: Schüler-Auswahl-Dialog
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}
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[RelayCommand]
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private void AddExam()
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{
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// TODO: Klausur-Erstellen-Dialog
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}
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}
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public enum GroupTab { Overview, Students, Exams, Grades, Planner, Documentation }
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public class StudentSummary
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{
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public Guid Id { get; }
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public string FullName { get; }
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public StudentSummary(Core.Models.Student s)
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{
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Id = s.Id;
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FullName = s.FullName;
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}
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}
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public class ExamSummary
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{
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public Guid Id { get; }
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public string Title { get; }
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public string Date { get; }
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public string Status { get; }
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public ExamSummary(Core.Models.Exam e)
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{
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Id = e.Id;
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Title = e.Title;
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Date = e.Date.ToString("dd.MM.yyyy");
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Status = e.Status switch
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{
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ExamStatus.Planned => "Geplant",
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ExamStatus.Conducted => "Durchgeführt",
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ExamStatus.Graded => "Korrigiert",
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ExamStatus.Returned => "Zurückgegeben",
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_ => "",
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};
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}
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}
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