166 lines
5.4 KiB
Go
166 lines
5.4 KiB
Go
package article
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import (
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"fmt"
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"net/http"
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"toutoukan/init/databaseInit"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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// ArticleOption 文评选项结构
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type ArticleOption struct {
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ID int64 `json:"id"` // 选项ID
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Name string `json:"name"` // 选项名称
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Votes int `json:"votes"` // 该选项的投票数
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IsVotedByUser bool `json:"is_voted"` // 当前用户是否投了该选项
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}
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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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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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Uid string `json:"uid"`
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}
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// ArticleListget 获取所有文评及选项信息(包含用户投票状态)
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func ArticleListget(c *gin.Context) {
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var req UserReq
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// 1. 解析并验证请求参数
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"error": "参数解析失败",
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"detail": err.Error(),
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})
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return
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}
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// 2. 查询所有文评
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var articles []struct {
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ArticleID int64 `gorm:"column:articleId"`
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Title string `gorm:"column:title"`
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VoteType string `gorm:"column:vote_type"`
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TotalVotersNum int `gorm:"column:total_voters_num"`
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EndTime string `gorm:"column:end_time"`
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IsEnded bool `gorm:"column:is_ended"`
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PublishUserID string `gorm:"column:publish_user_id"`
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CreateTime string `gorm:"column:create_time"`
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}
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if err := databaseInit.UserDB.Table("article_list").
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Select("articleId, title, vote_type, total_voters_num, end_time, is_ended, publish_user_id, create_time").
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Find(&articles).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "查询文评失败: " + err.Error(),
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})
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return
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}
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fmt.Println("所有文评列表:", articles)
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// 3. 构建结果映射
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result := make(map[string]interface{})
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// 4. 逐个处理文评
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for _, article := range articles {
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// 4.1 查询当前文评的选项
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var options []struct {
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ID int64 `gorm:"column:id"`
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OptionName string `gorm:"column:option_content"`
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VoteCount int `gorm:"column:option_votes_num"`
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SortOrder int `gorm:"column:sort_order"`
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}
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if err := databaseInit.UserDB.Table("article_options").
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Where("vote_article_id = ?", article.ArticleID).
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Select("id, option_content, option_votes_num, sort_order").
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Order("sort_order ASC").
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Find(&options).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "查询文评选项失败: " + err.Error(),
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})
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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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Find(&userVotes).Error
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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 votedOptionIDs []int64 = []int64{}
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if voteErr == nil && len(userVotes) > 0 {
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userHasVoted = true
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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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})
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return
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}
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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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Name: opt.OptionName,
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Votes: opt.VoteCount,
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IsVotedByUser: isVoted, // 标记当前用户是否投了这个选项
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})
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}
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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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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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result[article.Title] = articleData
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}
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c.JSON(http.StatusOK, result)
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}
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