MemberAdminWindow: Cache MembersDeliveries

Elwig/Services/MemberService.cs

@@ -174,17 +174,9 @@ namespace Elwig.Services {
                 vm.StatusAreaCommitmentToolTip = grid;
             });
 
-            Dictionary<int, bool> deliveries;
-            using (var ctx = new AppDbContext()) {
-                deliveries = ctx.Deliveries
-                  .Where(d => d.MgNr == m.MgNr)
-                  .GroupBy(d => d.Year)
-                  .ToDictionary(g => g.Key, g => g.Any());
-            }
-
             vm.MemberHasEmail = m.EmailAddresses.Count > 0;
             vm.MemberCanSendEmail = App.Config.Smtp != null && m.EmailAddresses.Count > 0;
-            vm.MemberHasDeliveries = Enumerable.Range(0, 9999).Select(i => deliveries.GetValueOrDefault(i, false)).ToList();
+            vm.MemberHasDeliveries = Enumerable.Range(0, 9999).Select(i => vm.MembersDeliveries.GetValueOrDefault((m.MgNr, i), false)).ToList();
         }
 
         public static async Task<(List<string>, IQueryable<Member>, List<string>)> GetFilters(this MemberAdminViewModel vm, AppDbContext ctx) {

Elwig/ViewModels/MemberAdminViewModel.cs

@@ -40,6 +40,7 @@ namespace Elwig.ViewModels {
         private bool _enableSearchInputs = true;
         [ObservableProperty]
         private IEnumerable<bool> _memberHasDeliveries = [ .. Enumerable.Range(0, 9999).Select(i => false) ];
+        public Dictionary<(int, int), bool> MembersDeliveries = [];
 
         [ObservableProperty]
         private bool _memberListOrderByMgNr;

Elwig/Windows/MemberAdminWindow.xaml.cs

@@ -187,6 +187,10 @@ namespace Elwig.Windows {
             ControlUtils.RenewItemsSource(BranchInput, await ctx.Branches.OrderBy(b => b.Name).ToListAsync());
             ControlUtils.RenewItemsSource(DefaultKgInput, await ctx.WbKgs.Select(k => k.AtKg).OrderBy(k => k.Name).ToListAsync());
 
+            ViewModel.MembersDeliveries = await ctx.Deliveries
+                .GroupBy(d => new { d.MgNr, d.Year })
+                .ToDictionaryAsync(g => (g.Key.MgNr, g.Key.Year), g => g.Any());
+
             var seasons = await ctx.Seasons.OrderByDescending(s => s.Year).ToListAsync();
             Menu_DeliveryConfirmation.Items.Clear();
             foreach (var s in seasons) {