name          = "advanced_data_type_valuer_and_setter"
		deletedAt     = mytime(time.Now())
		isAdmin       = mybool(false)
		user          = AdvancedDataTypeUser{
			ID:           sql.NullInt64{Int64: 10, Valid: true},
			Name:         &sql.NullString{String: name, Valid: true},
			Birthday:     sql.NullTime{Time: time.Now(), Valid: true},
			RegisteredAt: mytime(time.Now()),
			DeletedAt:    &deletedAt,
			Active:       mybool(true),

	Active    *bool
}

type (
	mytime time.Time
	myint  int
	mybool = bool
)

type AdvancedDataTypeUser struct {
	ID           sql.NullInt64
	Name         *sql.NullString
	Birthday     sql.NullTime
	RegisteredAt mytime
	DeletedAt    *mytime
	Active       mybool
	Admin        *mybool
}

type BaseModel struct {
	ID        uint
	CreatedAt time.Time
	CreatedBy *int

		switch fieldValue.Elem().Interface().(type) {
		case time.Time:
			field.Set = func(ctx context.Context, value reflect.Value, v interface{}) error {
				switch data := v.(type) {
				case **time.Time:
					if data != nil && *data != nil {
						field.Set(ctx, value, *data)
					}
				case time.Time:
					field.ReflectValueOf(ctx, value).Set(reflect.ValueOf(v))
				case *time.Time:
					if data != nil {

package tests_test

import (
	"testing"
	"time"
)

type Animal struct {
	Counter    uint64 `gorm:"primary_key:yes"`
	Name       string `gorm:"DEFAULT:'galeone'"`
	From       string // test reserved sql keyword as field name
	Age        *time.Time
	unexported string // unexported value
	CreatedAt  time.Time
	UpdatedAt  time.Time
}

func TestNonStdPrimaryKeyAndDefaultValues(t *testing.T) {
	DB.Migrator().DropTable(&Animal{})

		{"error not equal", errors.New("1"), errors.New("2"), false},
		{"driver.Valuer equal", ModifyAt{Time: now, Valid: true}, ModifyAt{Time: now, Valid: true}, true},
		{"driver.Valuer not equal", ModifyAt{Time: now, Valid: true}, ModifyAt{Time: now.Add(time.Second), Valid: true}, false},
		{"driver.Valuer equal (ptr to nil ptr)", (*ModifyAt)(nil), &ModifyAt{}, false},
	}
	for _, test := range assertEqualTests {

import (
	"testing"
	"time"

	"gorm.io/gorm"
)

func TestDefaultValue(t *testing.T) {
	type Harumph struct {
		gorm.Model
		Email   string    `gorm:"not null;index:,unique"`
		Name    string    `gorm:"notNull;default:foo"`
		Name2   string    `gorm:"size:233;not null;default:'foo'"`
		Name3   string    `gorm:"size:233;notNull;default:''"`
		Age     int       `gorm:"default:18"`
		Created time.Time `gorm:"default:2000-01-02"`

	}

	if config.Logger == nil {
		config.Logger = logger.Default
	}

	if config.NowFunc == nil {
		config.NowFunc = func() time.Time { return time.Now().Local() }
	}

	if dialector != nil {
		config.Dialector = dialector
	}

	if config.Plugins == nil {
		config.Plugins = map[string]Plugin{}
	}

	if config.cacheStore == nil {

		}
	}

	var times []time.Time
	if err := DB.Model(User{}).Where("name like ?", "pluck-user%").Pluck("created_at", &times).Error; err != nil {
		t.Errorf("got error when pluck time: %v", err)
	}

	for idx, tv := range times {
		AssertEqual(t, tv, users[idx].CreatedAt)
	}

	var ptrtimes []*time.Time

package tests_test

import (
	"log"
	"math/rand"
	"os"
	"path/filepath"
	"time"

	"gorm.io/driver/mysql"
	"gorm.io/driver/postgres"
	"gorm.io/driver/sqlite"
	"gorm.io/driver/sqlserver"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
	. "gorm.io/gorm/utils/tests"
)

var DB *gorm.DB
var (
	mysqlDSN     = "gorm:gorm@tcp(localhost:9910)/gorm?charset=utf8&parseTime=True&loc=Local"

	}

	if DB.Dialector.Name() == "sqlserver" {
		t.Skip("Skip SQL Server for this test, because it too difference with other dialects.")
	}

	date, _ := time.ParseInLocation("2006-01-02", "2021-10-18", time.Local)

	// find
	sql := DB.ToSQL(func(tx *gorm.DB) *gorm.DB {
		return tx.Model(&User{}).Where("id = ?", 100).Limit(10).Order("age desc").Find(&[]User{})
	})