}

		sql = newSQL.String()
	} else {
		sql = numericPlaceholder.ReplaceAllString(sql, "$$$1$$")

		sql = numericPlaceholderRe.ReplaceAllStringFunc(sql, func(v string) string {
			num := v[1 : len(v)-1]
			n, _ := strconv.Atoi(num)

			// position var start from 1 ($1, $2)
			n -= 1
			if n >= 0 && n <= len(vars)-1 {
				return vars[n]
			}
			return v
		})
	}

	return sql

}

type CouponProduct struct {
	CouponId  int    `gorm:"primarykey;size:255"`
	ProductId string `gorm:"primarykey;size:255"`
	Desc      string
}

type Order struct {
	gorm.Model
	Num      string
	Coupon   *Coupon
	CouponID string
}

type Parent struct {
	gorm.Model
	FavChildID uint
	FavChild   *Child
	Children   []*Child
}

type Child struct {
	gorm.Model

	}

	// prepend asterisks
	return append([]byte("***"), data...), nil
}

type Num int64

func (i *Num) Scan(src interface{}) error {
	switch s := src.(type) {
	case []byte:
		n, _ := strconv.Atoi(string(s))
		*i = Num(n)
	case int64:
		*i = Num(s)
	default:
		return errors.New("Cannot scan NamedInt from " + reflect.ValueOf(src).String())
	}
	return nil
}

			}
		}
	}

	if num, ok := field.TagSettings["AUTOINCREMENTINCREMENT"]; ok {
		field.AutoIncrementIncrement, _ = strconv.ParseInt(num, 10, 64)
	}

	if v, ok := field.TagSettings["DEFAULT"]; ok {
		field.HasDefaultValue = true
		field.DefaultValue = v
	}

	if num, ok := field.TagSettings["SIZE"]; ok {
		if field.Size, err = strconv.Atoi(num); err != nil {
			field.Size = -1
		}
	}

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

	coupon2 := Coupon{