110 lines
3.2 KiB
Go
110 lines
3.2 KiB
Go
package post
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import (
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"fmt"
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"mini_server/internal/dao"
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"mini_server/internal/server/help"
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"mini_server/internal/server/httpreply"
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"net/http"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/sirupsen/logrus"
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"gorm.io/datatypes"
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)
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type PostInfo struct {
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PostId uint64 `json:"post_id"`
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UserId int32 `json:"user_id"` // 发帖者
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UserAvatarId string `json:"user_avatar_id"` // 用户头像
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Username string `json:"username"` // 用户名称
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CreatedAt string `json:"created_at"` // 发帖时间
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Title string `json:"title"`
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Content string `json:"content"`
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LikeCount int `json:"like_count"` // 点赞数
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IsLike bool `json:"is_like"` // 当前用户是否点赞了
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RoleIds datatypes.JSON `json:"role_ids"` // 帖子关联的角色id列表
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}
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type QueryURI struct {
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PostId uint64 `uri:"post_id" binding:"min=1"`
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}
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type QueryReply struct {
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PostInfo *PostInfo `json:"post_info"`
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}
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// 帖子查询接口
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func Query(c *gin.Context) {
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reply := httpreply.NewDefaultReplyData()
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defer httpreply.Reply(c, reply)
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userId, ok := help.GetUserId(c)
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if !ok {
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reply.Status = http.StatusNotFound
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reply.Message = "无法获取用户信息"
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return
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}
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var param QueryURI
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if err := c.ShouldBindUri(¶m); err != nil {
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reply.Status = http.StatusBadRequest
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reply.Message = fmt.Sprintf("invalid uri path,err:%v", err)
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return
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}
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data, err := dao.Post_Query(param.PostId)
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if err != nil {
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logrus.Errorf("帖子数据库查询失败，post_id:%d,err:%v", param.PostId, err)
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reply.Status = http.StatusInternalServerError
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reply.Message = "帖子查询异常"
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return
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}
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// 从数据库中查询贴子的点赞情况。
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count, err := dao.PostLike_Count(param.PostId)
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if err != nil {
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logrus.Errorf("贴子点赞数查询失败，post_id:%d,err:%v", param.PostId, err)
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reply.Status = http.StatusInternalServerError
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reply.Message = "贴子点赞数查询异常"
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return
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}
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/// 查询当前用户，是否点赞了。
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is_like, err := dao.PostLike_Exists(userId, param.PostId)
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if err != nil {
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logrus.Errorf("贴子用户是否点赞查询失败，user_id:%d,post_id:%d,err:%v", userId, param.PostId, err)
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reply.Status = http.StatusInternalServerError
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reply.Message = "贴子用户是否点赞查询失败"
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return
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}
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// 查询用户名和头像id
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user_info, err := dao.User_Query(data.UserId)
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if err != nil {
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logrus.Errorf("查询帖子发布者信息失败，user_id:%d,post_id:%d,err:%v", userId, param.PostId, err)
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reply.Status = http.StatusInternalServerError
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reply.Message = "查询帖子发布者信息失败"
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return
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}
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var info PostInfo
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copy_from_mysql(data, count, is_like, user_info, &info)
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reply.Data = &QueryReply{PostInfo: &info}
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}
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func copy_from_mysql(data *dao.Post, like_count int64, is_like bool, user_info *dao.User, detail *PostInfo) {
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detail.PostId = uint64(data.ID)
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detail.UserId = data.UserId
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detail.Title = data.Title
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detail.Content = data.Content
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detail.RoleIds = data.RoleIds
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detail.LikeCount = int(like_count)
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detail.IsLike = is_like
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detail.CreatedAt = data.CreatedAt.Format(time.DateTime)
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if user_info != nil {
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detail.UserAvatarId = user_info.AvatarId
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detail.Username = user_info.Username
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}
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}
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