public async Task CreateFile(FagFiler fil, int fagId)
        {
            fil.Uploadet = DateTime.Now;
            fil.FagId    = fagId;

            var scope = _scopeFactory.CreateScope();
            var db    = scope.ServiceProvider.GetService <nillertron_com_dbContext>();

            using (db)
            {
                db.FagFiler.Add(fil);
                await db.SaveChangesAsync();
            }
        }
        public async Task DeleteFile(FagFiler file)
        {
            var root          = env.WebRootPath;
            var filePlacement = file.Url;
            var path          = Path.Combine(root, filePlacement);

            File.Delete(path);
            var scope = _scopeFactory.CreateScope();
            var db    = scope.ServiceProvider.GetService <nillertron_com_dbContext>();

            using (db)
            {
                db.Remove(file);
                await db.SaveChangesAsync();
            }
        }