platform/web/models/product_discount.go

package models

import (
	"platform/web/core"

	"github.com/shopspring/decimal"
)

// ProductDiscount 产品折扣表
type ProductDiscount struct {
	core.Model
	Name     string `json:"name" gorm:"column:name"`         // 产品名称
	Discount int32  `json:"discount" gorm:"column:discount"` // 产品折扣
}

func (pd ProductDiscount) Rate() decimal.Decimal {
	return decimal.NewFromInt32(pd.Discount).
		Div(decimal.NewFromInt32(100))
}