[#82] BaseDataWindow: Fixed error handling after first error to allow saving changes

Elwig/Windows/BaseDataWindow.xaml.WineCult.cs

@@ -41,25 +41,27 @@ namespace Elwig.Windows {
             if (!_cultChanged || _cultList == null || _cults == null || _cultIds == null)
                 return;
 
+            // delete
             var deleteCultIds = _cults.Where(c => c.Value == null).Select(c => c.Key).ToList();
             await ctx.WineCultivations.Where(c => deleteCultIds.Contains(c.CultId)).ExecuteDeleteAsync();
-            foreach (var (cult, old) in _cultIds) {
-                cult.CultId = old;
-            }
-            foreach (var (old, cultid) in _cults.Where(c => c.Value != null)) {
-                ctx.Update(ctx.WineCultivations.Find(old)!);
-            }
-            await ctx.SaveChangesAsync();
 
+            // update
+            ctx.UpdateRange(_cultList
+                .Where(_cultIds.ContainsKey)
+                .Select(c => {
+                    c.CultId = _cultIds[c];
+                    ctx.Entry(c).State = EntityState.Added;
+                    return c;
+                }));
+            await ctx.SaveChangesAsync();
             foreach (var (old, cultid) in _cults.Where(c => c.Value != null)) {
                 await ctx.Database.ExecuteSqlAsync($"UPDATE wine_cultivation SET cultid = {cultid} WHERE cultid = {old}");
-                await ctx.Database.ExecuteSqlRawAsync($"UPDATE payment_variant SET data = REPLACE(data, '-{old}\"', '-{cultid}\"')");
+                await ctx.Database.ExecuteSqlAsync($"UPDATE payment_variant SET data = REPLACE(data, {$"-{old}\""}, {$"-{cultid}\""})");
             }
 
-            foreach (var cult in _cultList.Where(c => !_cultIds.ContainsKey(c))) {
-                if (cult.CultId == null) continue;
-                ctx.Add(cult);
-            }
+            // insert
+            ctx.AddRange(_cultList
+                .Where(c => !_cultIds.ContainsKey(c) && c.CultId != null));
             await ctx.SaveChangesAsync();
         }