fc0d6ff19d
- Added Channel support in Post model, including ChannelID field in PostRequest and PostResponse DTOs. - Updated PostService and PostRepository to handle channel-specific logic for creating and listing posts. - Introduced ChannelRepository and ChannelService, along with corresponding handlers for managing channels. - Enhanced router to include routes for channel management and public channel listing. - Seeded default channels in the database during initialization.
105 lines
4.1 KiB
Go
105 lines
4.1 KiB
Go
package model
|
||
|
||
import (
|
||
"time"
|
||
|
||
"github.com/google/uuid"
|
||
"gorm.io/gorm"
|
||
)
|
||
|
||
// PostStatus 帖子状态
|
||
type PostStatus string
|
||
|
||
const (
|
||
PostStatusDraft PostStatus = "draft"
|
||
PostStatusPending PostStatus = "pending" // 待审核
|
||
PostStatusPublished PostStatus = "published"
|
||
PostStatusRejected PostStatus = "rejected"
|
||
PostStatusDeleted PostStatus = "deleted"
|
||
)
|
||
|
||
// Post 帖子实体
|
||
type Post struct {
|
||
ID string `json:"id" gorm:"type:varchar(36);primaryKey"`
|
||
UserID string `json:"user_id" gorm:"type:varchar(36);index;index:idx_posts_user_status_created,priority:1;not null"`
|
||
ChannelID *string `json:"channel_id,omitempty" gorm:"type:varchar(36);index"`
|
||
Title string `json:"title" gorm:"type:varchar(200);not null"`
|
||
Content string `json:"content" gorm:"type:text;not null"`
|
||
|
||
// 关联
|
||
// User 需要参与缓存序列化；否则列表命中缓存后会丢失作者信息，前端退化为“匿名用户”
|
||
User *User `json:"user,omitempty" gorm:"foreignKey:UserID"`
|
||
Images []PostImage `json:"images" gorm:"foreignKey:PostID"`
|
||
|
||
// 审核状态
|
||
Status PostStatus `json:"status" gorm:"type:varchar(20);default:published;index:idx_posts_status_created,priority:1;index:idx_posts_user_status_created,priority:2"`
|
||
ReviewedAt *time.Time `json:"reviewed_at" gorm:"type:timestamp"`
|
||
ReviewedBy string `json:"reviewed_by" gorm:"type:varchar(50)"`
|
||
RejectReason string `json:"reject_reason" gorm:"type:varchar(500)"`
|
||
|
||
// 统计
|
||
LikesCount int `json:"likes_count" gorm:"column:likes_count;default:0"`
|
||
CommentsCount int `json:"comments_count" gorm:"column:comments_count;default:0"`
|
||
FavoritesCount int `json:"favorites_count" gorm:"column:favorites_count;default:0"`
|
||
SharesCount int `json:"shares_count" gorm:"column:shares_count;default:0"`
|
||
ViewsCount int `json:"views_count" gorm:"column:views_count;default:0"`
|
||
|
||
// 置顶/锁定
|
||
IsPinned bool `json:"is_pinned" gorm:"default:false"`
|
||
IsFeatured bool `json:"is_featured" gorm:"default:false"` // 加精
|
||
IsLocked bool `json:"is_locked" gorm:"default:false"`
|
||
IsDeleted bool `json:"-" gorm:"default:false"`
|
||
|
||
// 投票
|
||
IsVote bool `json:"is_vote" gorm:"column:is_vote;default:false"`
|
||
|
||
// 软删除
|
||
DeletedAt gorm.DeletedAt `json:"-" gorm:"index"`
|
||
|
||
// 时间戳
|
||
CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime;index:idx_posts_status_created,priority:2,sort:desc;index:idx_posts_user_status_created,priority:3,sort:desc"`
|
||
UpdatedAt time.Time `json:"updated_at" gorm:"autoUpdateTime:false"`
|
||
// ContentEditedAt 仅在实际修改标题/正文/图片时更新，供前端展示「已编辑」；与统计类更新解耦
|
||
ContentEditedAt *time.Time `json:"content_edited_at,omitempty" gorm:"column:content_edited_at"`
|
||
}
|
||
|
||
// BeforeCreate 创建前生成UUID
|
||
func (p *Post) BeforeCreate(tx *gorm.DB) error {
|
||
if p.ID == "" {
|
||
p.ID = uuid.New().String()
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func (Post) TableName() string {
|
||
return "posts"
|
||
}
|
||
|
||
// PostImage 帖子图片
|
||
type PostImage struct {
|
||
ID string `json:"id" gorm:"type:varchar(36);primaryKey"`
|
||
PostID string `json:"post_id" gorm:"type:varchar(36);index;not null"`
|
||
URL string `json:"url" gorm:"type:text;not null"`
|
||
ThumbnailURL string `json:"thumbnail_url" gorm:"type:text"`
|
||
PreviewURL string `json:"preview_url" gorm:"type:text"` // 列表/网格预览图（最大300px）
|
||
PreviewURLLarge string `json:"preview_url_large" gorm:"type:text"` // 详情页预览图（最大800px）
|
||
Width int `json:"width" gorm:"default:0"`
|
||
Height int `json:"height" gorm:"default:0"`
|
||
Size int64 `json:"size" gorm:"default:0"` // 文件大小（字节）
|
||
MimeType string `json:"mime_type" gorm:"type:varchar(50)"`
|
||
SortOrder int `json:"sort_order" gorm:"default:0"`
|
||
CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime"`
|
||
}
|
||
|
||
// BeforeCreate 创建前生成UUID
|
||
func (pi *PostImage) BeforeCreate(tx *gorm.DB) error {
|
||
if pi.ID == "" {
|
||
pi.ID = uuid.New().String()
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func (PostImage) TableName() string {
|
||
return "post_images"
|
||
}
|