修改投票和get逻辑
This commit is contained in:
@@ -19,17 +19,17 @@ type ArticleOption struct {
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// ArticleResponse 单个文评的响应结构
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type ArticleResponse struct {
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ID int64 `json:"文评ID"` // 文评唯一ID
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Title string `json:"文评标题"` // 文评标题
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VoteType string `json:"投票类型"` // 投票类型
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TotalVoters int `json:"总投票人数"` // 总投票人数
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EndTime string `json:"结束时间"` // 结束时间
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IsEnded bool `json:"是否结束"` // 是否结束
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PublisherID string `json:"发布者ID"` // 发布者ID
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CreateTime string `json:"创建时间"` // 创建时间
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Options []ArticleOption `json:"选项"` // 按顺序排列的选项列表
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UserHasVoted bool `json:"用户是否已投票"` // 当前用户是否投过票
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VotedOptionID *int64 `json:"用户投票的选项ID"` // 若已投票,记录选项ID(未投票为null)
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ID int64 `json:"文评ID"` // 文评唯一ID
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Title string `json:"文评标题"` // 文评标题
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VoteType string `json:"投票类型"` // 投票类型
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TotalVoters int `json:"总投票人数"` // 总投票人数
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EndTime string `json:"结束时间"` // 结束时间
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IsEnded bool `json:"是否结束"` // 是否结束
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PublisherID string `json:"发布者ID"` // 发布者ID
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CreateTime string `json:"创建时间"` // 创建时间
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Options []ArticleOption `json:"选项"` // 按顺序排列的选项列表
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UserHasVoted bool `json:"用户是否已投票"` // 当前用户是否投过票
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VotedOptionIDs []int64 `json:"用户投票的选项ID"` // 若已投票,记录所有选项ID(未投票为空数组)
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}
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type UserReq struct {
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@@ -96,21 +96,25 @@ func ArticleListget(c *gin.Context) {
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return
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}
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// 4.2 查询当前用户对该文评的投票记录
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var userVote struct {
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// 4.2 查询当前用户对该文评的所有投票记录
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var userVotes []struct {
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OptionID int64 `gorm:"column:option_id"`
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}
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voteErr := databaseInit.UserDB.Table("user_votes").
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Where("user_id = ? AND vote_article_id = ?", req.Uid, article.ArticleID).
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First(&userVote).Error
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Find(&userVotes).Error
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// 标记用户是否投票及投票的选项ID
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// 标记用户是否投票及所有投票的选项ID
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userHasVoted := false
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var votedOptionID *int64 = nil
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if voteErr == nil {
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var votedOptionIDs []int64 = []int64{}
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if voteErr == nil && len(userVotes) > 0 {
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userHasVoted = true
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votedOptionID = &userVote.OptionID
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} else if voteErr != gorm.ErrRecordNotFound {
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// 收集所有投票的选项ID
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for _, vote := range userVotes {
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votedOptionIDs = append(votedOptionIDs, vote.OptionID)
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}
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} else if voteErr != nil && voteErr != gorm.ErrRecordNotFound {
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// 处理查询错误(非"未找到"的错误)
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "查询用户投票记录失败: " + voteErr.Error(),
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@@ -121,8 +125,14 @@ func ArticleListget(c *gin.Context) {
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// 4.3 格式化选项数据(标记用户是否投了该选项)
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var optionList []ArticleOption
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for _, opt := range options {
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// 检查当前选项是否是用户投票的选项
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isVoted := userHasVoted && (opt.ID == *votedOptionID)
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// 检查当前选项是否是用户投票的选项之一
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isVoted := false
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for _, votedID := range votedOptionIDs {
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if opt.ID == votedID {
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isVoted = true
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break
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}
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}
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optionList = append(optionList, ArticleOption{
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ID: opt.ID,
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@@ -134,17 +144,17 @@ func ArticleListget(c *gin.Context) {
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// 4.4 组装单个文评的响应数据
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articleData := ArticleResponse{
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ID: article.ArticleID,
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Title: article.Title,
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VoteType: article.VoteType,
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TotalVoters: article.TotalVotersNum,
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EndTime: article.EndTime,
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IsEnded: article.IsEnded,
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PublisherID: article.PublishUserID,
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CreateTime: article.CreateTime,
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Options: optionList,
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UserHasVoted: userHasVoted, // 整体标记用户是否投过票
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VotedOptionID: votedOptionID, // 记录用户投票的选项ID(未投票则为null)
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ID: article.ArticleID,
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Title: article.Title,
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VoteType: article.VoteType,
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TotalVoters: article.TotalVotersNum,
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EndTime: article.EndTime,
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IsEnded: article.IsEnded,
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PublisherID: article.PublishUserID,
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CreateTime: article.CreateTime,
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Options: optionList,
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UserHasVoted: userHasVoted, // 整体标记用户是否投过票
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VotedOptionIDs: votedOptionIDs, // 记录用户投票的所有选项ID(未投票则为空数组)
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}
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// 4.5 加入结果集
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@@ -1,7 +1,6 @@
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package article
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import (
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"fmt"
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"net/http"
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"time"
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"toutoukan/init/databaseInit"
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@@ -10,10 +9,20 @@ import (
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"gorm.io/gorm"
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)
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// 投票请求结构体,同时支持单选(optionId)和多选(optionIds)
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type VoteArticleRequest struct {
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Uid string `json:"uid" binding:"required,min=1,max=50"` // 用户ID,非空且长度限制
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ArticleID int64 `json:"articleId" binding:"required,min=1"` // 文评ID,非空且为正整数
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OptionID int64 `json:"optionId" binding:"required,min=1"` // 选项ID,投票必需
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Uid string `json:"uid" binding:"required,min=1,max=50"` // 用户ID
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ArticleID int64 `json:"articleId" binding:"required,min=1"` // 文章ID
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OptionID int64 `json:"optionId" binding:"omitempty,min=1"` // 单个选项ID(单选时使用)
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OptionIDs []int64 `json:"optionIds" binding:"omitempty,dive,min=1"` // 多个选项ID(多选时使用)
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}
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// 用户投票记录表结构
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type UserVote struct {
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UserID string `gorm:"column:user_id"`
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VoteArticleID int64 `gorm:"column:vote_article_id"`
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OptionID int64 `gorm:"column:option_id"`
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VoteTime time.Time `gorm:"column:vote_time"`
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}
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func VoteArticle(c *gin.Context) {
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@@ -42,31 +51,11 @@ func VoteArticle(c *gin.Context) {
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}
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}()
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// 3. 检查用户是否已投票(防重复投票)
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var existingVote struct{ ID int64 }
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voteCheckErr := tx.Table("user_votes").
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Where("user_id = ? AND vote_article_id = ?", req.Uid, req.ArticleID).
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First(&existingVote).Error
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if voteCheckErr == nil {
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// 已存在投票记录
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tx.Rollback()
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c.JSON(http.StatusForbidden, gin.H{
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"error": "您已对该文评投过票,无法重复投票",
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})
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return
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} else if voteCheckErr != gorm.ErrRecordNotFound {
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// 其他查询错误
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "检查投票记录失败: " + voteCheckErr.Error(),
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})
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return
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}
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// 3. 检查文章状态和投票类型
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var articleStatus struct {
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IsEnded bool `gorm:"column:is_ended"`
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EndTime time.Time `gorm:"column:end_time"` // 新增:获取截止时间
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IsEnded bool `gorm:"column:is_ended"`
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EndTime time.Time `gorm:"column:end_time"`
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VoteType string `gorm:"column:vote_type"` // 投票类型:single-单选,multiple-多选
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}
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if err := tx.Table("article_list").
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Where("articleId = ?", req.ArticleID).
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@@ -80,70 +69,95 @@ func VoteArticle(c *gin.Context) {
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return
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}
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// 双重检查:已标记结束 或 已过截止时间,均禁止投票
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// 3.1 检查投票是否已结束
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now := time.Now()
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if articleStatus.IsEnded || articleStatus.EndTime.Before(now) {
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tx.Rollback()
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// 区分提示信息(可选,增强用户体验)
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var errMsg string
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if articleStatus.IsEnded {
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errMsg = "该文评投票已结束,无法投票"
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} else {
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errMsg = "该文评投票已过截止时间,无法投票"
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}
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c.JSON(http.StatusForbidden, gin.H{"error": errMsg})
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c.JSON(http.StatusForbidden, gin.H{"error": "该文评投票已结束或已过截止时间,无法投票"})
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return
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}
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// 额外优化:如果已过截止时间但is_ended未更新,主动更新状态(可选)
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if !articleStatus.IsEnded && articleStatus.EndTime.Before(now) {
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if err := tx.Table("article_list").
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Where("articleId = ?", req.ArticleID).
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Update("is_ended", true).Error; err != nil {
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// 此处不回滚,仅记录警告,不影响主要逻辑
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fmt.Printf("警告:更新过期文评状态失败,articleId=%d, err=%v\n", req.ArticleID, err)
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// 4. 处理投票选项,统一转换为选项ID列表
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var selectedOptions []int64
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if articleStatus.VoteType == "single" {
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if req.OptionID == 0 || len(req.OptionIDs) > 0 {
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tx.Rollback()
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c.JSON(http.StatusForbidden, gin.H{
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"error": "该文评为单选投票,请使用optionId提交单个选项",
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})
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return
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}
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selectedOptions = []int64{req.OptionID}
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} else {
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if len(req.OptionIDs) == 0 || req.OptionID != 0 {
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tx.Rollback()
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c.JSON(http.StatusForbidden, gin.H{
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"error": "该文评为多选投票,请使用optionIds提交多个选项",
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})
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return
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}
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selectedOptions = req.OptionIDs
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}
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// 5. 检查选项是否属于该文评
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var optionCheck struct{ ID int64 }
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if err := tx.Table("article_options").
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Where("id = ? AND vote_article_id = ?", req.OptionID, req.ArticleID).
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First(&optionCheck).Error; err != nil {
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// 5. 检查用户是否已投票
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var voteCount int64
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if err := tx.Table("user_votes").
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Where("user_id = ? AND vote_article_id = ?", req.Uid, req.ArticleID).
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Count(&voteCount).Error; err != nil {
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tx.Rollback()
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if err == gorm.ErrRecordNotFound {
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c.JSON(http.StatusNotFound, gin.H{"error": "选项不存在或不属于该文评"})
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} else {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "查询选项失败: " + err.Error()})
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}
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c.JSON(http.StatusInternalServerError, gin.H{"error": "检查投票记录失败: " + err.Error()})
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return
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}
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// 6. 执行投票事务(三表操作)
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// 6.1 记录用户投票记录
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if err := tx.Table("user_votes").Create(map[string]interface{}{
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"user_id": req.Uid,
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"vote_article_id": req.ArticleID,
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"option_id": req.OptionID,
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"vote_time": time.Now(),
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}).Error; err != nil {
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if voteCount > 0 {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "记录投票失败: " + err.Error()})
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c.JSON(http.StatusForbidden, gin.H{"error": "您已对该文评投过票,无法重复投票"})
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return
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}
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// 6.2 更新选项票数
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// 6. 批量检查所有选项是否属于该文评
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var existingOptionsCount int64
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if err := tx.Table("article_options").
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Where("id = ?", req.OptionID).
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Where("vote_article_id = ? AND id IN ?", req.ArticleID, selectedOptions).
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Count(&existingOptionsCount).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "查询选项失败: " + err.Error()})
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return
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}
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if existingOptionsCount != int64(len(selectedOptions)) {
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tx.Rollback()
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c.JSON(http.StatusNotFound, gin.H{"error": "部分选项ID不存在或不属于该文评"})
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return
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}
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// 7. 执行批量投票事务
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voteTime := time.Now()
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// 7.1 批量插入用户投票记录
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userVotes := make([]UserVote, len(selectedOptions))
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for i, optionID := range selectedOptions {
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userVotes[i] = UserVote{
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UserID: req.Uid,
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VoteArticleID: req.ArticleID,
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OptionID: optionID,
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VoteTime: voteTime,
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}
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}
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if err := tx.Table("user_votes").Create(&userVotes).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "批量记录投票失败: " + err.Error()})
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return
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}
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// 7.2 批量更新选项票数
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if err := tx.Table("article_options").
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Where("id IN ?", selectedOptions).
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Update("option_votes_num", gorm.Expr("option_votes_num + 1")).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "更新选项票数失败: " + err.Error()})
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c.JSON(http.StatusInternalServerError, gin.H{"error": "批量更新选项票数失败: " + err.Error()})
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return
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}
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// 6.3 更新文评总投票人数
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// 7.3 更新文评总投票人数
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if err := tx.Table("article_list").
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Where("articleId = ?", req.ArticleID).
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Update("total_voters_num", gorm.Expr("total_voters_num + 1")).Error; err != nil {
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@@ -152,21 +166,27 @@ func VoteArticle(c *gin.Context) {
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return
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}
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// 7. 提交事务
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// 8. 提交事务
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if err := tx.Commit().Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "提交投票失败: " + err.Error()})
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return
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}
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// 8. 返回成功响应
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// 9. 返回成功响应
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responseData := gin.H{
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"articleId": req.ArticleID,
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"voteTime": voteTime.Format("2006-01-02 15:04:05"),
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}
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if articleStatus.VoteType == "single" {
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responseData["optionId"] = req.OptionID
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} else {
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responseData["optionIds"] = req.OptionIDs
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"message": "投票成功",
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"data": gin.H{
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"articleId": req.ArticleID,
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"optionId": req.OptionID,
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"voteTime": time.Now().Format("2006-01-02 15:04:05"),
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},
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"data": responseData,
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})
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}
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