f.Readable = true
			}
		})
	}
}

type CustomizedNamingStrategy struct {
	schema.NamingStrategy
}

func (ns CustomizedNamingStrategy) ColumnName(table, column string) string {
	baseColumnName := ns.NamingStrategy.ColumnName(table, column)

	if table == "" {
		return baseColumnName
	}

	s := strings.Split(table, "_")

	var prefix string
	switch len(s) {
	case 1:

			t.Errorf("errors happened when query first: %v", err)
		} else {
			for _, name := range []string{"Name", "Age", "Birthday"} {
				t.Run(name, func(t *testing.T) {
					dbName := DB.NamingStrategy.ColumnName("", name)

					switch name {
					case "Name":
						if _, ok := first[dbName].(string); !ok {
							t.Errorf("invalid data type for %v, got %#v", dbName, first[dbName])
						}
					case "Age":

		if matches := nameMatcher.FindStringSubmatch(tableColumn); len(matches) == 4 {
			table = matches[1]
			star := matches[2]
			columnName := matches[3]
			if star != "" {
				return table, star
			}
			return table, columnName
		}
		return "", ""
	}
}()

// SelectAndOmitColumns get select and omit columns, select -> true, omit -> false

			} else {
				schema.Fields = append(schema.Fields, field)
			}
		}
	}

	for _, field := range schema.Fields {
		if field.DBName == "" && field.DataType != "" {
			field.DBName = namer.ColumnName(schema.Table, field.Name)
		}

		bindName := field.BindName()
		if field.DBName != "" {
			// nonexistence or shortest path or first appear prioritized if has permission

	AssertEqual(t, false, ok)
}

func findColumnType(dest interface{}, columnName string) (
	foundColumn gorm.ColumnType, err error,
) {
	columnTypes, err := DB.Migrator().ColumnTypes(dest)
	if err != nil {
		err = fmt.Errorf("ColumnTypes err:%v", err)
		return
	}

	for _, c := range columnTypes {
		if c.Name() == columnName {
			foundColumn = c
			break
		}
	}
	return
}

			if len(primaryFields) == 1 {
				lookUpNames = append(lookUpNames, strings.TrimSuffix(lookUpName, primaryField.Name)+"ID",
					strings.TrimSuffix(lookUpName, primaryField.Name)+"Id", schema.namer.ColumnName(foreignSchema.Table,
						strings.TrimSuffix(lookUpName, primaryField.Name)+"ID"))
			}

			for _, name := range lookUpNames {
				if f := foreignSchema.LookUpFieldByBindName(field.BindNames, name); f != nil {

		t.Errorf("belongs to association should be saved")
	}
}

func TestUpdateWithMissWhere(t *testing.T) {
	type User struct {
		ID   uint   `gorm:"column:id;<-:create"`
		Name string `gorm:"column:name"`
	}
	user := User{ID: 1, Name: "king"}
	tx := DB.Session(&gorm.Session{DryRun: true}).Save(&user)

	if err := tx.Error; err != nil {
		t.Fatalf("failed to update user,missing where condition,err=%+v", err)