Victor_Jay
2b47380ac5
- 新增 PostLike/PostDislike 模型，复合主键 (user_id, post_id) - Post 表新增 LikesCount/DislikesCount 冗余计数器 - Repository 层：reaction_repo.go，含 WithTx 事务支持 - Service 层：reaction_service.go，赞踩互斥逻辑（6 态切换），事务包裹 - Controller 层：reaction_controller.go，3 个 API（ToggleLike/ToggleDislike/GetReaction） - 接口定义：controller/interfaces.go 新增 reactionUseCase，service/repository.go 新增 ReactionStore - 路由注册 + 依赖注入 + AutoMigrate - 前端：文章详情页赞踩按钮 + 状态查询 + 401 跳转登录 - 样式：posts.css 新增赞踩按钮样式
78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
package repository
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import (
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"metazone.cc/metalab/internal/model"
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"metazone.cc/metalab/internal/service"
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"gorm.io/gorm"
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)
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// ReactionRepo 赞/踩数据访问
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type ReactionRepo struct {
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db *gorm.DB
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}
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// NewReactionRepo 构造函数
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func NewReactionRepo(db *gorm.DB) *ReactionRepo {
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return &ReactionRepo{db: db}
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}
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// WithTx 基于给定事务连接创建新的 ReactionRepo
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func (r *ReactionRepo) WithTx(tx *gorm.DB) service.ReactionStore {
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return &ReactionRepo{db: tx}
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}
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// FindLike 查找点赞记录
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func (r *ReactionRepo) FindLike(userID, postID uint) (*model.PostLike, error) {
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var like model.PostLike
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err := r.db.Where("user_id = ? AND post_id = ?", userID, postID).First(&like).Error
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if err != nil {
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return nil, err
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}
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return &like, nil
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}
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// CreateLike 创建点赞记录
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func (r *ReactionRepo) CreateLike(like *model.PostLike) error {
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return r.db.Create(like).Error
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}
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// DeleteLike 删除点赞记录
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func (r *ReactionRepo) DeleteLike(userID, postID uint) error {
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return r.db.Where("user_id = ? AND post_id = ?", userID, postID).Delete(&model.PostLike{}).Error
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}
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// FindDislike 查找踩记录
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func (r *ReactionRepo) FindDislike(userID, postID uint) (*model.PostDislike, error) {
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var dislike model.PostDislike
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err := r.db.Where("user_id = ? AND post_id = ?", userID, postID).First(&dislike).Error
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if err != nil {
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return nil, err
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}
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return &dislike, nil
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}
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// CreateDislike 创建踩记录
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func (r *ReactionRepo) CreateDislike(dislike *model.PostDislike) error {
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return r.db.Create(dislike).Error
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}
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// DeleteDislike 删除踩记录
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func (r *ReactionRepo) DeleteDislike(userID, postID uint) error {
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return r.db.Where("user_id = ? AND post_id = ?", userID, postID).Delete(&model.PostDislike{}).Error
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}
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// IncrPostLikes 原子增加文章点赞数
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func (r *ReactionRepo) IncrPostLikes(postID uint, delta int) error {
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return r.db.Model(&model.Post{}).
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Where("id = ?", postID).
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UpdateColumn("likes_count", gorm.Expr("likes_count + ?", delta)).Error
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}
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// IncrPostDislikes 原子增加文章踩数
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func (r *ReactionRepo) IncrPostDislikes(postID uint, delta int) error {
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return r.db.Model(&model.Post{}).
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Where("id = ?", postID).
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UpdateColumn("dislikes_count", gorm.Expr("dislikes_count + ?", delta)).Error
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}
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