[#43] BaseDataWindow: Do not use Context from ContextWindow any more

Elwig/Windows/BaseDataWindow.xaml.WineAttr.cs

@@ -18,16 +18,16 @@ namespace Elwig.Windows {
         private bool _attrChanged = false;
         private bool _attrUpdate = false;
 
-        private void WineAttributesInitEditing() {
-            _attrList = new(Context.WineAttributes.OrderBy(a => a.Name).ToList());
+        private async Task WineAttributesInitEditing(AppDbContext ctx) {
+            _attrList = new(await ctx.WineAttributes.OrderBy(a => a.Name).ToListAsync());
             _attrs = _attrList.ToDictionary(a => a.AttrId, a => (string?)a.AttrId);
             _attrIds = _attrList.ToDictionary(a => a, a => a.AttrId);
             ControlUtils.RenewItemsSource(WineAttributeList, _attrList, a => (a as WineAttr)?.AttrId);
             WineAttributeList_SelectionChanged(null, null);
         }
 
-        private void WineAttributesFinishEditing() {
-            ControlUtils.RenewItemsSource(WineAttributeList, Context.WineAttributes.OrderBy(a => a.Name).ToList(), a => (a as WineAttr)?.AttrId);
+        private async Task WineAttributesFinishEditing(AppDbContext ctx) {
+            ControlUtils.RenewItemsSource(WineAttributeList, await ctx.WineAttributes.OrderBy(a => a.Name).ToListAsync(), a => (a as WineAttr)?.AttrId);
             _attrList = null;
             _attrs = null;
             _attrIds = null;
@@ -37,31 +37,31 @@ namespace Elwig.Windows {
             WineAttributeDeleteButton.IsEnabled = false;
         }
 
-        private async Task WineAttributesSave() {
+        private async Task WineAttributesSave(AppDbContext ctx) {
             if (!_attrChanged || _attrList == null || _attrs == null || _attrIds == null)
                 return;
 
             foreach (var (attrid, _) in _attrs.Where(a => a.Value == null)) {
-                Context.Remove(Context.WineAttributes.Find(attrid));
+                ctx.Remove(ctx.WineAttributes.Find(attrid)!);
             }
             foreach (var (attr, old) in _attrIds) {
                 attr.AttrId = old;
             }
             foreach (var (old, attrid) in _attrs.Where(a => a.Value != null)) {
-                Context.Update(Context.WineAttributes.Find(old));
+                ctx.Update(ctx.WineAttributes.Find(old)!);
             }
-            await Context.SaveChangesAsync();
+            await ctx.SaveChangesAsync();
 
             foreach (var (old, attrid) in _attrs.Where(a => a.Value != null)) {
-                await Context.Database.ExecuteSqlAsync($"UPDATE wine_attribute SET attrid = {attrid} WHERE attrid = {old}");
+                await ctx.Database.ExecuteSqlAsync($"UPDATE wine_attribute SET attrid = {attrid} WHERE attrid = {old}");
             }
-            await Context.SaveChangesAsync();
+            await ctx.SaveChangesAsync();
 
             foreach (var attr in _attrList.Where(a => !_attrIds.ContainsKey(a))) {
                 if (attr.AttrId == null) continue;
-                await Context.AddAsync(attr);
+                ctx.Add(attr);
             }
-            await Context.SaveChangesAsync();
+            await ctx.SaveChangesAsync();
         }
 
         private void WineAttributeList_SelectionChanged(object? sender, SelectionChangedEventArgs? evt) {
@@ -88,7 +88,7 @@ namespace Elwig.Windows {
         private void WineAttributeAddButton_Click(object sender, RoutedEventArgs evt) {
             if (_attrList == null) return;
             _attrChanged = true;
-            var item = Context.CreateProxy<WineAttr>();
+            var item = new WineAttr { AttrId = "", Name = "" };
             _attrList.Add(item);
             WineAttributeList.SelectedItem = item;
             UpdateButtons();