columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnCreatedAt() {
            doColumn("createdAt");
        }

        public void columnDocId() {
            doColumn("docId");
        }

        public void columnQueryId() {
            doColumn("queryId");
        }

            columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnCreatedAt() {
            doColumn("createdAt");
        }

        public void columnUpdatedAt() {
            doColumn("updatedAt");
        }
    }

	// create
	user := &User{Name: "foo", Age: 20}
	user.CreatedAt = date
	user.UpdatedAt = date
	sql = DB.ToSQL(func(tx *gorm.DB) *gorm.DB {
		return tx.Model(&User{}).Create(user)
	})

	}
	return meta.sseConfig, meta.EncryptionConfigUpdatedAt, nil
}

// CreatedAt returns the time of creation of bucket
func (sys *BucketMetadataSys) CreatedAt(bucket string) (time.Time, error) {
	meta, _, err := sys.GetConfig(GlobalContext, bucket)
	if err != nil {
		return time.Time{}, err
	}
	return meta.Created.UTC(), nil
}

// GetPolicyConfig returns configured bucket policy

        try {
            final RESULT result = entityType.newInstance();
            result.setCreatedAt(toLocalDateTime(source.get("createdAt")));
            result.setDocId(DfTypeUtil.toString(source.get("docId")));
            result.setQueryId(DfTypeUtil.toString(source.get("queryId")));
            result.setUrl(DfTypeUtil.toString(source.get("url")));

	Info2 []*Info2 `gorm:"foreignkey:Code;references:Code"`
}

type Info1 struct {
	CreatedAt time.Time
	UpdatedAt time.Time
	Code      string
	Relation  []*InfoRelation `gorm:"foreignkey:Code;references:Code"`
}

type Info2 struct {
	CreatedAt time.Time
	UpdatedAt time.Time
	Code      string
	Relation  []*InfoRelation `gorm:"foreignkey:Code;references:Code"`
}

				if err != nil {
					return nil, err
				}
				if !opts.NoMetadata {
					for i := range buckets {
						createdAt, err := globalBucketMetadataSys.CreatedAt(buckets[i].Name)
						if err == nil {
							buckets[i].Created = createdAt
						}
					}
				}
				return buckets, nil
			},
		)

		return listBucketsCache.GetWithCtx(ctx)
	}

        try {
            final RESULT result = entityType.newInstance();
            result.setCreatedAt(toLocalDateTime(source.get("createdAt")));
            result.setUpdatedAt(toLocalDateTime(source.get("updatedAt")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {

		}

		for i, want := range keys {
			if want.CreatedBy != kms.StubCreatedBy {
				t.Fatalf("want key created by %s, got %s", kms.StubCreatedBy, want.CreatedBy)
			}
			if want.CreatedAt != kms.StubCreatedAt {
				t.Fatalf("want key created at %s, got %s", kms.StubCreatedAt, want.CreatedAt)
			}
			if test.wantKeyNames[i] != want.Name {

	}

	var result2 ScannerValuerStruct
	if err := DB.First(&result2, result.ID).Error; err != nil {
		t.Errorf("got error %v when query with %v", err, result.ID)
	}

	AssertObjEqual(t, result2, result, "ID", "CreatedAt", "UpdatedAt", "Name", "Gender", "Age")
}

func TestInvalidValuer(t *testing.T) {
	DB.Migrator().DropTable(&ScannerValuerStruct{})
	if err := DB.Migrator().AutoMigrate(&ScannerValuerStruct{}); err != nil {