116 lines
3.2 KiB
Go
116 lines
3.2 KiB
Go
package entities
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import (
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"time"
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"github.com/google/uuid"
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"github.com/shopspring/decimal"
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"gorm.io/gorm"
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)
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// Product 产品实体
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type Product struct {
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ID string `gorm:"primaryKey;type:varchar(36)" comment:"产品ID"`
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OldID *string `gorm:"type:varchar(36);index" comment:"旧产品ID，用于兼容"`
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Name string `gorm:"type:varchar(100);not null" comment:"产品名称"`
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Code string `gorm:"type:varchar(50);uniqueIndex;not null" comment:"产品编号"`
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Description string `gorm:"type:text" comment:"产品简介"`
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Content string `gorm:"type:text" comment:"产品内容"`
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CategoryID string `gorm:"type:varchar(36);not null" comment:"产品分类ID"`
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Price decimal.Decimal `gorm:"type:decimal(10,2);not null;default:0" comment:"产品价格"`
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IsEnabled bool `gorm:"default:true" comment:"是否启用"`
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IsVisible bool `gorm:"default:true" comment:"是否展示"`
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IsPackage bool `gorm:"default:false" comment:"是否组合包"`
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// 组合包相关关联
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PackageItems []*ProductPackageItem `gorm:"foreignKey:PackageID" comment:"组合包项目列表"`
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// SEO信息
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SEOTitle string `gorm:"type:varchar(200)" comment:"SEO标题"`
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SEODescription string `gorm:"type:text" comment:"SEO描述"`
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SEOKeywords string `gorm:"type:text" comment:"SEO关键词"`
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// 关联关系
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Category *ProductCategory `gorm:"foreignKey:CategoryID" comment:"产品分类"`
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Documentation *ProductDocumentation `gorm:"foreignKey:ProductID" comment:"产品文档"`
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CreatedAt time.Time `gorm:"autoCreateTime" comment:"创建时间"`
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UpdatedAt time.Time `gorm:"autoUpdateTime" comment:"更新时间"`
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DeletedAt gorm.DeletedAt `gorm:"index" comment:"软删除时间"`
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}
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// BeforeCreate GORM钩子：创建前自动生成UUID
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func (p *Product) BeforeCreate(tx *gorm.DB) error {
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if p.ID == "" {
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p.ID = uuid.New().String()
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}
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return nil
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}
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// IsValid 检查产品是否有效
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func (p *Product) IsValid() bool {
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return p.DeletedAt.Time.IsZero() && p.IsEnabled
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}
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// IsVisibleToUser 检查产品是否对用户可见
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func (p *Product) IsVisibleToUser() bool {
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return p.IsValid() && p.IsVisible
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}
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// CanBeSubscribed 检查产品是否可以订阅
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func (p *Product) CanBeSubscribed() bool {
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return p.IsValid()
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}
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// UpdateSEO 更新SEO信息
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func (p *Product) UpdateSEO(title, description, keywords string) {
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p.SEOTitle = title
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p.SEODescription = description
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p.SEOKeywords = keywords
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}
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// Enable 启用产品
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func (p *Product) Enable() {
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p.IsEnabled = true
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}
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// Disable 禁用产品
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func (p *Product) Disable() {
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p.IsEnabled = false
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}
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// Show 显示产品
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func (p *Product) Show() {
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p.IsVisible = true
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}
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// Hide 隐藏产品
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func (p *Product) Hide() {
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p.IsVisible = false
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}
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// SetAsPackage 设置为组合包
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func (p *Product) SetAsPackage() {
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p.IsPackage = true
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}
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func (p *Product) IsCombo() bool {
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return p.IsPackage
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}
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// SetOldID 设置旧ID
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func (p *Product) SetOldID(oldID string) {
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p.OldID = &oldID
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}
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// GetOldID 获取旧ID
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func (p *Product) GetOldID() string {
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if p.OldID != nil {
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return *p.OldID
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}
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return ""
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}
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// HasOldID 检查是否有旧ID
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func (p *Product) HasOldID() bool {
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return p.OldID != nil && *p.OldID != ""
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} |