cls/internal/domain/purchase/entity.go

package purchase

import "time"

// ContentType 内容类型
type ContentType int8

const (
	ContentTypeArticle ContentType = 1 // 文章
	ContentTypeColumn  ContentType = 2 // 专栏
)

//ContentSource 内容来源
type ContentSource int8

const (
	ContentSourceBuy  ContentSource = 1 //购买
	ContentSourceGift ContentSource = 1 //购买
)

// Purchase 内容购买记录
type Purchase struct {
	Id            uint64        `xorm:"pk autoincr 'id'" json:"id"`
	UserId        uint64        `xorm:"notnull 'user_id'" json:"userId"`
	ContentId     uint64        `xorm:"notnull 'content_id'" json:"contentId"`
	ContentType   ContentType   `xorm:"tinyint(1) notnull 'content_type'" `
	Price         float64       `xorm:"decimal(10,2) notnull 'price'" json:"price"`
	ContentSource ContentSource `xorm:"tinyint(1) notnull 'content_source'" `
	Status        int8          `xorm:"tinyint(1) default 1 'status'" json:"status"`
	CreatedAt     time.Time     `xorm:"datetime created 'created_at'" json:"createdAt"`
	UpdatedAt     time.Time     `xorm:"datetime updated 'updated_at'" json:"updatedAt"`
}

// IsValid 检查购买记录是否有效
func (p *Purchase) IsValid() bool {
	return p.Status == 1
}

// NewPurchase 创建购买记录
func NewPurchase(userId, contentId uint64, contentType ContentType, price float64) *Purchase {
	return &Purchase{
		UserId:      userId,
		ContentId:   contentId,
		ContentType: contentType,
		Price:       price,
		Status:      1,
	}
}