Schüler hinzufügen, Kompetenzen

LehrerApp.Data/Repositories/AllRepositories.cs

@@ -179,3 +179,32 @@ public class ParticipationAspectRepository(LiteDbContext db) : IParticipationAsp
     public void Save(ParticipationAspect a) { a.UpdatedAt = DateTime.UtcNow; db.ParticipationAspects.Upsert(a); }
     public void Delete(Guid id) => db.ParticipationAspects.Delete(id);
 }
+
+public class SubjectRepository(LiteDbContext db) : ISubjectRepository
+{
+    public List<Subject> GetAll() => db.Subjects.FindAll().OrderBy(s => s.Name).ToList();
+    public Subject? GetById(Guid id) => db.Subjects.FindById(id);
+    public Subject? GetByName(string name) =>
+        db.Subjects.FindOne(s => s.Name == name);
+    public void Save(Subject s) { s.UpdatedAt = DateTime.UtcNow; db.Subjects.Upsert(s); }
+    public void Delete(Guid id) => db.Subjects.Delete(id);
+}
+
+public class CompetencyDomainRepository(LiteDbContext db) : ICompetencyDomainRepository
+{
+    public List<CompetencyDomain> GetBySubjectAndGrade(Guid subjectId, int gradeLevel) =>
+        db.CompetencyDomains
+          .Find(d => d.SubjectId == subjectId && d.GradeLevel == gradeLevel)
+          .OrderBy(d => d.SortOrder)
+          .ToList();
+    public CompetencyDomain? GetById(Guid id) => db.CompetencyDomains.FindById(id);
+    public void Save(CompetencyDomain d) { d.UpdatedAt = DateTime.UtcNow; db.CompetencyDomains.Upsert(d); }
+    public void Delete(Guid id) => db.CompetencyDomains.Delete(id);
+    public void DeleteBySubjectAndGrade(Guid subjectId, int gradeLevel)
+    {
+        foreach (var d in db.CompetencyDomains
+                             .Find(d => d.SubjectId == subjectId && d.GradeLevel == gradeLevel)
+                             .ToList())
+            db.CompetencyDomains.Delete(d.Id);
+    }
+}