- 优化 EnableCascadeSave 级联保存执行逻辑，提升性能；

Author: 2881099

FreeSql.DbContext/DbSet/DbSetAsync.cs

@@ -328,18 +328,29 @@ async Task AddOrUpdateNavigateAsync(TEntity item, bool isAdd, string propertyNam
                         }
                         break;
                     case Internal.Model.TableRefType.OneToMany:
-                        var addlist = isAdd ? new List<object>() : null;
+                        var addList = new List<object>();
+                        var addOrUpdateList = new List<object>();
                         foreach (var propValItem in propValEach)
                         {
                             for (var colidx = 0; colidx < tref.Columns.Count; colidx++)
                             {
                                 var val = FreeSql.Internal.Utils.GetDataReaderValue(tref.RefColumns[colidx].CsType, _db.OrmOriginal.GetEntityValueWithPropertyName(_table.Type, item, tref.Columns[colidx].CsName));
                                 _db.OrmOriginal.SetEntityValueWithPropertyName(tref.RefEntityType, propValItem, tref.RefColumns[colidx].CsName, val);
                             }
-                            if (isAdd) addlist.Add(propValItem);
-                            else await refSet.AddOrUpdateAsync(propValItem, cancellationToken);
+                            if (isAdd) addList.Add(propValItem);
+                            else
+                            {
+                                var flagExists = refSet.ExistsInStates(propValItem);
+                                if (flagExists == null) addList.Add(propValItem); //自增/Guid
+                                else addOrUpdateList.Add(propValItem); //统一状态管理
+                            }
+                        }
+                        if (addList.Any()) await refSet.AddRangeAsync(addList, cancellationToken);
+                        if (addOrUpdateList.Any())
+                        {
+                            var existsList = await refSet.Select.WhereDynamic(addOrUpdateList).ToListAsync(false, cancellationToken);
+                            foreach (var aouItem in addOrUpdateList) await refSet.AddOrUpdateAsync(aouItem, cancellationToken);
                         }
-                        if (isAdd) await refSet.AddRangeAsync(addlist, cancellationToken);
                         break;
                 }
             };

FreeSql.DbContext/DbSet/DbSetSync.cs

@@ -339,18 +339,29 @@ void AddOrUpdateNavigate(TEntity item, bool isAdd, string propertyName)
                         }
                         break;
                     case Internal.Model.TableRefType.OneToMany:
-                        var addlist = isAdd ? new List<object>() : null;
+                        var addList = new List<object>();
+                        var addOrUpdateList = new List<object>();
                         foreach (var propValItem in propValEach)
                         {
                             for (var colidx = 0; colidx < tref.Columns.Count; colidx++)
                             {
                                 var val = FreeSql.Internal.Utils.GetDataReaderValue(tref.RefColumns[colidx].CsType, _db.OrmOriginal.GetEntityValueWithPropertyName(_table.Type, item, tref.Columns[colidx].CsName));
                                 _db.OrmOriginal.SetEntityValueWithPropertyName(tref.RefEntityType, propValItem, tref.RefColumns[colidx].CsName, val);
                             }
-                            if (isAdd) addlist.Add(propValItem);
-                            else refSet.AddOrUpdate(propValItem);
+                            if (isAdd) addList.Add(propValItem);
+                            else
+                            {
+                                var flagExists = refSet.ExistsInStates(propValItem);
+                                if (flagExists == null) addList.Add(propValItem); //自增/Guid
+                                else addOrUpdateList.Add(propValItem); //统一状态管理
+                            }
+                        }
+                        if (addList.Any()) refSet.AddRange(addList);
+                        if (addOrUpdateList.Any())
+                        {
+                            var existsList = refSet.Select.WhereDynamic(addOrUpdateList).ToList();
+                            foreach (var aouItem in addOrUpdateList) refSet.AddOrUpdate(aouItem);
                         }
-                        if (isAdd) refSet.AddRange(addlist);
                         break;
                 }
             };