93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
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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