t.Fatalf("unexpected error: %v", err)
	}

	if err := DB.Model(&man).Where("id = ?", man.ID).Updates(struct {
		Age int
	}{Age: 20}).Error; err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	var result = struct{
		ID int
		Age int
	}{}
	if err := DB.Model(&man).Where("id = ?", man.ID).Find(&result).Error; err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

		}
	}
}

// User has many Toys, its `Polymorphic` is `Owner`, Pet has one Toy, its `Polymorphic` is `Owner`
//
//	type User struct {
//	  Toys []Toy `gorm:"polymorphic:Owner;"`
//	}
//	type Pet struct {
//	  Toy Toy `gorm:"polymorphic:Owner;"`
//	}
//	type Toy struct {
//	  OwnerID   int
//	  OwnerType string
//	}
func (schema *Schema) buildPolymorphicRelation(relation *Relationship, field *Field) {

	}
}

func TestSupportedDialectorWithErrForeignKeyViolated(t *testing.T) {
	tidbSkip(t, "not support the foreign key feature")

	type City struct {
		gorm.Model
		Name string `gorm:"unique"`
	}

	type Museum struct {
		gorm.Model
		Name   string `gorm:"unique"`
		CityID uint
		City   City `gorm:"Constraint:OnUpdate:CASCADE,OnDelete:CASCADE;FOREIGNKEY:CityID;References:ID"`
	}

		return field
	}
	if field, ok := schema.FieldsByName[name]; ok {
		return field
	}
	return nil
}

// LookUpFieldByBindName looks for the closest field in the embedded struct.
//
//	type Struct struct {
//		Embedded struct {
//			ID string // is selected by LookUpFieldByBindName([]string{"Embedded", "ID"}, "ID")
//		}
//		ID string // is selected by LookUpFieldByBindName([]string{"ID"}, "ID")
//	}

package clause

import (
	"strings"
)

const (
	AndWithSpace = " AND "
	OrWithSpace  = " OR "
)

// Where where clause
type Where struct {
	Exprs []Expression
}

// Name where clause name
func (where Where) Name() string {
	return "WHERE"
}

// Build build where clause
func (where Where) Build(builder Builder) {
	if len(where.Exprs) == 1 {
		if andCondition, ok := where.Exprs[0].(AndConditions); ok {

func init() {
	RegisterSerializer("json", JSONSerializer{})
	RegisterSerializer("unixtime", UnixSecondSerializer{})
	RegisterSerializer("gob", GobSerializer{})
}

// Serializer field value serializer
type serializer struct {
	Field           *Field
	Serializer      SerializerInterface
	SerializeValuer SerializerValuerInterface
	Destination     reflect.Value
	Context         context.Context
	value           interface{}

			}
		}
	}

	if !hasLogID {
		t.Fatalf("failed to found column log_id")
	}
}

type Post struct {
	ID         uuid.UUID `gorm:"primary_key;type:uuid;default:uuid_generate_v4();"`
	Title      string
	Categories []*Category `gorm:"Many2Many:post_categories"`
}

type Category struct {
	ID    uuid.UUID `gorm:"primary_key;type:uuid;default:uuid_generate_v4();"`
	Title string

import (
	"testing"
	"time"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

type Person struct {
	ID        int
	Name      string
	Addresses []Address `gorm:"many2many:person_addresses;"`
	DeletedAt gorm.DeletedAt
}

type Address struct {
	ID   uint
	Name string
}

type PersonAddress struct {
	PersonID  int
	AddressID int
	CreatedAt time.Time
	DeletedAt gorm.DeletedAt
}

					if association.Relationship.Field.FieldType.Kind() == reflect.Struct {
						assignBacks = append(assignBacks, assignBack{Source: source, Dest: rv.Index(0)})
					}
				}
			case reflect.Struct:
				if !rv.CanAddr() {
					association.Error = ErrInvalidValue
					return
				}

	Build(builder Builder)
}

// NegationExpressionBuilder negation expression builder
type NegationExpressionBuilder interface {
	NegationBuild(builder Builder)
}

// Expr raw expression
type Expr struct {
	SQL                string
	Vars               []interface{}
	WithoutParentheses bool
}

// Build build raw expression
func (expr Expr) Build(builder Builder) {
	var (
		afterParenthesis bool