MongoDB Gridfs-stream 只删除文件而不删除块

发布于 2025-01-10 10:55:51 字数 968 浏览 0 评论 0原文

我正在尝试从 MongoDB 数据库中删除文件和块，但我的路线仅删除文件而不是块。我已经看到了一些针对此问题的 StackOverflow 解决方案，但它们要么已经过时，要么基于已弃用的 remove() 函数。我看到另一个解决方案声称将 root:bucketName 添加到删除查询选项可以解决此问题，但它不适合我。

const router = require("express").Router();
var mongoose = require("mongoose");
var Schema = mongoose.Schema;
var ObjectId = require("mongodb").ObjectId;
const { authUser } = require("../middleware/auth");
const uploadMulter = require("../middleware/upload");
const Grid = require("gridfs-stream");

const connection = mongoose.connection;

let gfs, gridfsBucket;

connection.once("open", () => {
  gfs = Grid(connection.db, mongoose.mongo);
});

router.delete("/files/:_id", (req, res) => {

  gfs
    .collection("profilePictures")
    .deleteOne({ _id: ObjectId(req.params._id) }, (err) => {});//only deletes the profilePicture.file, but not profilePicture.chunk
});

原文

I am trying to delete a file and chunk from my MongoDB database but my route only deletes the file but not the chunk. I've seen a few StackOverflow solutions to this issue but they are either now outdated or are based on the deprecated remove() function. I saw another solution that claimed that adding root: bucketName to the delete query options fixes this issue, but it didn't for me.

const router = require("express").Router();
var mongoose = require("mongoose");
var Schema = mongoose.Schema;
var ObjectId = require("mongodb").ObjectId;
const { authUser } = require("../middleware/auth");
const uploadMulter = require("../middleware/upload");
const Grid = require("gridfs-stream");

const connection = mongoose.connection;

let gfs, gridfsBucket;

connection.once("open", () => {
  gfs = Grid(connection.db, mongoose.mongo);
});

router.delete("/files/:_id", (req, res) => {

  gfs
    .collection("profilePictures")
    .deleteOne({ _id: ObjectId(req.params._id) }, (err) => {});//only deletes the profilePicture.file, but not profilePicture.chunk
});

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南…巷孤猫 2025-01-17 10:55:51

我发现使用 delete() 会删除块和文件，但它必须在 gridfsBucket。 StackOverflow 上的所有其他“解决方案”都使用 gfs 上已弃用的 remove() 或 deleteOne()。

此解决方案的问题是 delete() 函数仅适用于 BSON _id，因此如果您想根据文件名或元数据删除文件，那么它就不起作用。

router.delete("/files/:_id", (req, res) => {
  gridfsBucket = new mongoose.mongo.GridFSBucket(connection.db, {
    bucketName: "profilePictures",
  });
  gridfsBucket.delete(ObjectId(req.params._id));
});

I found that using delete() removes both the chunk and file but it must be ran on the gridfsBucket. All other "solutions" on StackOverflow use either the deprecated remove() or deleteOne()on gfs.

The issue with this solution is that the delete() function only works with BSON _id's so If you would like to delete files based on filename or metadata then It wont work.

router.delete("/files/:_id", (req, res) => {
  gridfsBucket = new mongoose.mongo.GridFSBucket(connection.db, {
    bucketName: "profilePictures",
  });
  gridfsBucket.delete(ObjectId(req.params._id));
});

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