if len(users6) != 1 {
		t.Errorf("should find one users using left join with conditions, but got %v", len(users6))
	}

	dryDB := DB.Session(&gorm.Session{DryRun: true})

	})
}

func TestHasOneOverrideReferences2(t *testing.T) {
	type Profile struct {
		gorm.Model
		Name string
	}

	type User struct {
		gorm.Model
		ProfileID uint     `gorm:"column:profile_id"`
		Profile   *Profile `gorm:"foreignKey:ID;references:ProfileID"`
	}

	checkStructRelation(t, &User{}, Relation{
		Name: "Profile", Type: schema.HasOne, Schema: "User", FieldSchema: "Profile",

		{
			"name":    "cat",
			"user_id": gorm.Expr("(?)", DB.Table("(?) as tmp", subQuery).Select("@uid:=id")),
		},
		{
			"name":    "dog",
			"user_id": gorm.Expr("@uid"),
		},
	})

	}
	return
}

// Joins specify Joins conditions
//
//	db.Joins("Account").Find(&user)
//	db.Joins("JOIN emails ON emails.user_id = users.id AND emails.email = ?", "******@****.***").Find(&user)
//	db.Joins("Account", DB.Select("id").Where("user_id = users.id AND name = ?", "someName").Model(&Account{}))
func (db *DB) Joins(query string, args ...interface{}) (tx *DB) {
	return joins(db, clause.LeftJoin, query, args...)

	dryDB := DB.Session(&gorm.Session{DryRun: true, QueryFields: true})
	userQuery := "SELECT .*user.*id.*user.*created_at.*user.*updated_at.*user.*deleted_at.*user.*name.*user.*age" +
		".*user.*birthday.*user.*company_id.*user.*manager_id.*user.*active.* "

	r := dryDB.Table("`user`").Find(&User{}).Statement
	if !regexp.MustCompile(userQuery + "FROM `user`").MatchString(r.Statement.SQL.String()) {

	if err := DB.Create(&user).Error; err != nil {
		t.Errorf("failed to create user, got error: %v", err)
	}

	if err := DB.Model(&user).Update("name", DB.Model(&Company{}).Select("name").Where("companies.id = users.company_id")).Error; err != nil {
		t.Errorf("failed to update with sub query, got error %v", err)
	}

	var result User
	DB.First(&result, user.ID)

	if result.Name != user.Company.Name {

		// callMethod do
		tx2 := tx1.Find(&User{}).Session(&gorm.Session{NewDB: true})
		// trx in hooks
		return tx2.Transaction(func(tx3 *gorm.DB) error {
			return tx3.Where("user_id", user.ID).Delete(&Account{}).Error
		})
	})

	if err != nil {
		t.Error(err)
	}

		{Name: "Birthday", DBName: "birthday", BindNames: []string{"Birthday"}, DataType: schema.Time},
		{Name: "CompanyID", DBName: "company_id", BindNames: []string{"CompanyID"}, DataType: schema.Int, Size: 64},
		{Name: "ManagerID", DBName: "manager_id", BindNames: []string{"ManagerID"}, DataType: schema.Uint, Size: 64},
		{Name: "Active", DBName: "active", BindNames: []string{"Active"}, DataType: schema.Bool},
	}

		t.Errorf("Failed, got error: %v", err)
	}

	if DB.First(&Coupon{}, "id = ?", coupon.ID).Error != nil {
		t.Errorf("Failed to query saved coupon")
	}

	if DB.First(&CouponProduct{}, "coupon_id = ? AND product_id = ?", coupon.ID, "full-save-association-product1").Error != nil {
		t.Errorf("Failed to query saved association")
	}

	orders := []Order{{Num: "order1", Coupon: coupon}, {Num: "order2", Coupon: coupon}}

	if !strings.Contains(str, "rgs.id = user.id") {
		t.Errorf("The second join condition is over written instead of combining")
	}

	if !strings.Contains(str, "`users`.`company_id` = `companies`.`id`") && !strings.Contains(str, "\"users\".\"company_id\" = \"companies\".\"id\"") {
		t.Errorf("The first join condition is over written instead of combining")
	}
}

func TestToSQL(t *testing.T) {
	// By default DB.DryRun should false