t.Fatalf("Failed, got error: %v, rows affected: %v", result.Error, result.RowsAffected)
	}

	tx2 := db.Begin()
	if result := tx2.Where("name=?", "zzjin").Delete(&User{}); result.Error != nil || result.RowsAffected != 0 {
		t.Fatalf("Failed, got error: %v, rows affected: %v", result.Error, result.RowsAffected)
	}
	tx2.Commit()
}

		rowsAffected += result.RowsAffected
		batch++

		if result.Error == nil && result.RowsAffected != 0 {
			fcTx := result.Session(&Session{NewDB: true})
			fcTx.RowsAffected = result.RowsAffected
			tx.AddError(fc(fcTx, batch))
		} else if result.Error != nil {
			tx.AddError(result.Error)
		}

		if tx.Error != nil || int(result.RowsAffected) < batchSize {
			break
		}

				if db.AddError(err) == nil {
					db.RowsAffected, _ = result.RowsAffected()

					if db.Statement.Result != nil {
						db.Statement.Result.Result = result
						db.Statement.Result.RowsAffected = db.RowsAffected
					}
				}

				return
			}

			BEGIN:
				initialized = false

				if update {
					if int(db.RowsAffected) >= reflectValue.Len() {
						return
					}
					elem = reflectValue.Index(int(db.RowsAffected))
					if onConflictDonothing {
						for _, field := range fields {
							if _, ok := field.ValueOf(db.Statement.Context, elem); !ok {
								db.RowsAffected++
								goto BEGIN
							}
						}
					}
				} else {

	}

	if rowsAffected := DB.Model([]User{result4}).Where("age > 0").Update("name", "jinzhu").RowsAffected; rowsAffected != 1 {
		t.Errorf("should only update one record, but got %v", rowsAffected)
	}

	if rowsAffected := DB.Model(users).Where("age > 0").Update("name", "jinzhu").RowsAffected; rowsAffected != 3 {
		t.Errorf("should only update one record, but got %v", rowsAffected)
	}
}

	})
}

func (c chainG[T]) Delete(ctx context.Context) (rowsAffected int, err error) {
	r := new(T)
	res := c.g.apply(ctx).Delete(r)
	return int(res.RowsAffected), res.Error
}

func (c chainG[T]) Update(ctx context.Context, name string, value any) (rowsAffected int, err error) {
	var r T
	res := c.g.apply(ctx).Model(r).Update(name, value)
	return int(res.RowsAffected), res.Error
}

		if err != nil {
			db.AddError(err)
			return
		}

		db.RowsAffected, _ = result.RowsAffected()

		if db.Statement.Result != nil {
			db.Statement.Result.Result = result
			db.Statement.Result.RowsAffected = db.RowsAffected
		}
	}

				if db.Statement.Result != nil {
					db.Statement.Result.RowsAffected = db.RowsAffected
				}
			}

			return
		}

		result, err := db.Statement.ConnPool.ExecContext(
			db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...,
		)
		if err != nil {
			db.AddError(err)
			return
		}

		db.RowsAffected, _ = result.RowsAffected()

		if db.Statement.Result != nil {

					if db.Statement.Result != nil {
						db.Statement.Result.RowsAffected = db.RowsAffected
					}
				}
			} else {
				result, err := db.Statement.ConnPool.ExecContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)

				if db.AddError(err) == nil {
					db.RowsAffected, _ = result.RowsAffected()
				}

				if db.Statement.Result != nil {

	if res.Error != nil || res.RowsAffected != 1 {
		t.Fatalf("first or create rows affect err:%v rows:%d", res.Error, res.RowsAffected)
	}

	res = DB.FirstOrCreate(&user, "name = ?", user.Name)
	if res.Error != nil || res.RowsAffected != 0 {
		t.Fatalf("first or create rows affect err:%v rows:%d", res.Error, res.RowsAffected)
	}
}