feat: get单个稿件的接口

backend/controller/postapi.go

@@ -2,6 +2,7 @@ package controller
 
 import (
 	"bytes"
+	"strconv"
 
 	"github.com/RockChinQ/Campux/backend/service"
 	"github.com/gin-gonic/gin"
@@ -26,6 +27,7 @@ func NewPostRouter(rg *gin.RouterGroup, ps service.PostService) *PostRouter {
 	group.GET("/download-image/:key", pr.DownloadImage)
 	group.POST("/get-self-posts", pr.GetSelfPosts)
 	group.POST("/get-posts", pr.GetPosts)
+	group.GET("/get-post-info/:id", pr.GetPostInfo)
 
 	return pr
 }
@@ -183,3 +185,32 @@ func (pr *PostRouter) GetPosts(c *gin.Context) {
 		"list": posts,
 	})
 }
+
+func (pr *PostRouter) GetPostInfo(c *gin.Context) {
+	_, err := pr.GetUin(c)
+
+	if err != nil {
+		pr.StatusCode(c, 401, err.Error())
+		return
+	}
+
+	id := c.Param("id")
+
+	idInt, err := strconv.Atoi(id)
+
+	if err != nil {
+		pr.Fail(c, 1, err.Error())
+		return
+	}
+
+	post, err := pr.PostService.GetPost(idInt)
+
+	if err != nil {
+		pr.Fail(c, 1, err.Error())
+		return
+	}
+
+	pr.Success(c, gin.H{
+		"post": post,
+	})
+}

backend/database/mongo.go

@@ -147,3 +147,19 @@ func (m *MongoDBManager) GetPosts(
 
 	return posts, nil
 }
+
+func (m *MongoDBManager) GetPost(id int) (*PostPO, error) {
+	var post PostPO
+	err := m.Client.Database(viper.GetString("database.mongo.db")).Collection(POST_COLLECTION).FindOne(
+		context.TODO(),
+		bson.M{"id": id},
+	).Decode(&post)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, nil
+		} else {
+			return nil, err
+		}
+	}
+	return &post, nil
+}

backend/service/post.go

@@ -83,4 +83,9 @@ func (ps *PostService) PostNew(uuid string, uin int64, text string, images []str
 // 获取用户的帖子
 func (ps *PostService) GetPosts(uin int64, status database.PostStatus, timeOrder int, page, pageSize int) ([]database.PostPO, error) {
 	return ps.DB.GetPosts(uin, status, timeOrder, page, pageSize)
-}
+}
+
+// 获取单个稿件信息
+func (ps *PostService) GetPost(id int) (*database.PostPO, error) {
+	return ps.DB.GetPost(id)
+}