更新投票功能
This commit is contained in:
137
controllers/article/createarticle.go
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137
controllers/article/createarticle.go
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@@ -0,0 +1,137 @@
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package article
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import (
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"net/http"
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"time"
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"toutoukan/init/databaseInit"
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"github.com/gin-gonic/gin"
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)
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// OptionItem 选项子结构
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type OptionItem struct {
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Content string `json:"content" binding:"required,min=1,max=200"` // 选项内容
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SortOrder int `json:"sort_order" binding:"required,min=0"` // 排序值
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}
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// CreateArticleRequest 创建文章的请求参数结构
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type CreateArticleRequest struct {
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PublishUserID string `json:"publish_user_id" binding:"required,min=1,max=40"`
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Title string `json:"title" binding:"required,min=1,max=255"`
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VoteType string `json:"vote_type" binding:"required,min=1,max=60"`
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EndTime time.Time `json:"end_time" binding:"required"`
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Options []OptionItem `json:"options" binding:"required,min=1,max=3"`
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}
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// 数据库文章记录结构体(与表结构完全对应)
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type ArticleList struct {
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ArticleID int64 `gorm:"column:articleId;primaryKey;autoIncrement"` // 明确主键和自增
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PublishUserID string `gorm:"column:publish_user_id"`
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Title string `gorm:"column:title"`
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VoteType string `gorm:"column:vote_type"`
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EndTime time.Time `gorm:"column:end_time"`
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IsEnded bool `gorm:"column:is_ended"`
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TotalVotersNum int `gorm:"column:total_voters_num"`
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CreateTime time.Time `gorm:"column:create_time"`
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}
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// 自定义表名(如果结构体名与表名不一致)
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func (ArticleList) TableName() string {
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return "article_list"
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}
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// CreateArticle 创建文章(包含选项)
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func CreateArticle(c *gin.Context) {
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var req CreateArticleRequest
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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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tx := databaseInit.UserDB.Begin()
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if tx.Error != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "开启事务失败: " + tx.Error.Error()})
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return
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}
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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}
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}()
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// 1. 创建文章主记录
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newArticle := ArticleList{
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PublishUserID: req.PublishUserID,
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Title: req.Title,
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VoteType: req.VoteType,
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EndTime: req.EndTime,
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IsEnded: false,
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TotalVotersNum: 0,
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CreateTime: time.Now(),
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}
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// 插入文章并获取ID(使用GORM的Create方法,自动填充自增ID)
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if err := tx.Create(&newArticle).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "创建文章失败: " + err.Error()})
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return
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}
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// 验证文章ID是否有效(必须大于0)
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if newArticle.ArticleID <= 0 {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "无法获取文章ID,创建失败"})
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return
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}
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// 2. 批量创建选项(确保vote_article_id正确关联)
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var options []map[string]interface{}
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for _, opt := range req.Options {
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options = append(options, map[string]interface{}{
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"vote_article_id": newArticle.ArticleID, // 使用刚创建的文章ID
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"option_content": opt.Content,
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"option_votes_num": 0,
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"sort_order": opt.SortOrder,
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})
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}
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// 插入选项前先验证文章ID是否存在(额外保险)
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var count int64
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if err := tx.Model(&ArticleList{}).Where("articleId = ?", newArticle.ArticleID).Count(&count).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "验证文章ID失败: " + err.Error()})
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return
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}
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if count == 0 {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "文章ID不存在,外键约束失败"})
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return
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}
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// 批量插入选项
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if err := tx.Table("article_options").CreateInBatches(options, len(options)).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{"error": "创建选项失败: " + err.Error()})
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return
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}
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// 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": "提交数据失败: " + err.Error()})
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return
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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": "文章及选项创建成功",
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"data": gin.H{
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"article_id": newArticle.ArticleID,
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"option_count": len(req.Options),
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},
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})
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}
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92
controllers/article/deletearticle.go
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92
controllers/article/deletearticle.go
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@@ -0,0 +1,92 @@
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package article
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import (
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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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)
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// DeleteArticleRequest 删除文章的请求参数
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type DeleteArticleRequest struct {
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ArticleID int64 `json:"article_id" binding:"required,min=1"` // 要删除的文章ID
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}
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// DeleteArticle 删除文章(处理外键关联)
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func DeleteArticle(c *gin.Context) {
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var req DeleteArticleRequest
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// 解析请求参数
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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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// 开启事务(确保所有删除操作要么全部成功,要么全部失败)
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tx := databaseInit.UserDB.Begin()
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if tx.Error != nil {
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "开启事务失败: " + tx.Error.Error(),
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})
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return
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}
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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}
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}()
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// 步骤1:先删除用户投票记录(因为依赖文章ID和选项ID)
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if err := tx.Table("user_votes").
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Where("vote_article_id = ?", req.ArticleID).
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Delete(nil).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "删除用户投票记录失败: " + err.Error(),
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})
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return
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}
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// 步骤2:再删除文章选项(因为依赖文章ID)
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if err := tx.Table("article_options").
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Where("vote_article_id = ?", req.ArticleID).
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Delete(nil).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "删除文章选项失败: " + err.Error(),
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})
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return
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}
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// 步骤3:最后删除文章主记录
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if err := tx.Table("article_list").
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Where("articleId = ?", req.ArticleID).
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Delete(nil).Error; err != nil {
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tx.Rollback()
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "删除文章失败: " + err.Error(),
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})
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return
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}
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// 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{
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"error": "提交删除操作失败: " + err.Error(),
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})
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return
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}
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// 返回成功响应
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"message": "文章及关联数据已全部删除",
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"data": gin.H{
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"deleted_article_id": req.ArticleID,
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},
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})
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}
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108
controllers/article/getarticle.go
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108
controllers/article/getarticle.go
Normal file
@@ -0,0 +1,108 @@
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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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"toutoukan/init/databaseInit"
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"github.com/gin-gonic/gin"
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)
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// ArticleOption 文评选项结构(增加了ID字段)
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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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}
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// ArticleResponse 单个文评的响应结构(保持不变)
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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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}
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// ArticleList 获取所有文评及选项信息(带排序)
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func ArticleListget(c *gin.Context) {
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// 1. 查询所有文评,获取表中所有字段
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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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// 查询文评主表,选择所有字段
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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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// 2. 构建结果映射
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result := make(map[string]interface{})
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// 3. 逐个查询每个文评的选项
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for _, article := range articles {
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var options []struct {
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ID int64 `gorm:"column:id"` // 新增:获取选项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"` // 用于排序的字段
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}
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// 查询当前文评的所有选项,并按sort_order排序
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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"). // 新增:选择id字段
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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. 格式化选项数据为有序切片(包含ID)
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var optionList []ArticleOption
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for _, opt := range options {
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optionList = append(optionList, ArticleOption{
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ID: opt.ID, // 新增:赋值选项ID
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Name: opt.OptionName,
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Votes: opt.VoteCount,
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})
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}
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// 5. 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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}
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// 6. 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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172
controllers/article/votearticle.go
Normal file
172
controllers/article/votearticle.go
Normal file
@@ -0,0 +1,172 @@
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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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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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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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}
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func VoteArticle(c *gin.Context) {
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var req VoteArticleRequest
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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. 开启数据库事务确保数据一致性
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tx := databaseInit.UserDB.Begin()
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if tx.Error != nil {
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c.JSON(http.StatusInternalServerError, gin.H{
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"error": "开启事务失败: " + tx.Error.Error(),
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})
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return
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}
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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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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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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}
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if err := tx.Table("article_list").
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Where("articleId = ?", req.ArticleID).
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First(&articleStatus).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": "文评不存在"})
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} else {
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c.JSON(http.StatusInternalServerError, gin.H{"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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// 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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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})
|
||||
return
|
||||
}
|
||||
|
||||
// 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)
|
||||
if !articleStatus.IsEnded && articleStatus.EndTime.Before(now) {
|
||||
if err := tx.Table("article_list").
|
||||
Where("articleId = ?", req.ArticleID).
|
||||
Update("is_ended", true).Error; err != nil {
|
||||
// 此处不回滚,仅记录警告,不影响主要逻辑
|
||||
fmt.Printf("警告:更新过期文评状态失败,articleId=%d, err=%v\n", req.ArticleID, err)
|
||||
}
|
||||
}
|
||||
|
||||
// 5. 检查选项是否属于该文评
|
||||
var optionCheck struct{ ID int64 }
|
||||
if err := tx.Table("article_options").
|
||||
Where("id = ? AND vote_article_id = ?", req.OptionID, req.ArticleID).
|
||||
First(&optionCheck).Error; err != nil {
|
||||
tx.Rollback()
|
||||
if err == gorm.ErrRecordNotFound {
|
||||
c.JSON(http.StatusNotFound, gin.H{"error": "选项不存在或不属于该文评"})
|
||||
} else {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "查询选项失败: " + err.Error()})
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// 6. 执行投票事务(三表操作)
|
||||
// 6.1 记录用户投票记录
|
||||
if err := tx.Table("user_votes").Create(map[string]interface{}{
|
||||
"user_id": req.Uid,
|
||||
"vote_article_id": req.ArticleID,
|
||||
"option_id": req.OptionID,
|
||||
"vote_time": time.Now(),
|
||||
}).Error; err != nil {
|
||||
tx.Rollback()
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "记录投票失败: " + err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// 6.2 更新选项票数
|
||||
if err := tx.Table("article_options").
|
||||
Where("id = ?", req.OptionID).
|
||||
Update("option_votes_num", gorm.Expr("option_votes_num + 1")).Error; err != nil {
|
||||
tx.Rollback()
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "更新选项票数失败: " + err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// 6.3 更新文评总投票人数
|
||||
if err := tx.Table("article_list").
|
||||
Where("articleId = ?", req.ArticleID).
|
||||
Update("total_voters_num", gorm.Expr("total_voters_num + 1")).Error; err != nil {
|
||||
tx.Rollback()
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "更新总投票人数失败: " + err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// 7. 提交事务
|
||||
if err := tx.Commit().Error; err != nil {
|
||||
tx.Rollback()
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "提交投票失败: " + err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// 8. 返回成功响应
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"success": true,
|
||||
"message": "投票成功",
|
||||
"data": gin.H{
|
||||
"articleId": req.ArticleID,
|
||||
"optionId": req.OptionID,
|
||||
"voteTime": time.Now().Format("2006-01-02 15:04:05"),
|
||||
},
|
||||
})
|
||||
}
|
||||
Reference in New Issue
Block a user