javascript - 一个动作删除两个对象（multer / grifs-stream和文字）(Deleting two objects(multer/grifs-stream and literal) with one action)

Question

I want to delete two objects with one action.

(我想用一个动作删除两个对象。)

Both objects have common props: gfs(file) - have id property File(name of literal) - have fileID property which take value from id property of gfs(file).

(这两个对象都有共同的道具：gfs（file）-具有id属性File（文字名称）-具有fileID属性，该属性从gfs（file）的id属性获取值。)

Here's the function, the problem is that delete uncompatible objects.

(这是函数，问题是删除不兼容的对象。)

router.delete('/:id', auth, (req, res) => {
  gfs.remove({ _id: req.params.id, root: 'files' }, (err, gridStore) => {
    if (err) {
      return res.status(404).json({ err: err });
    }
  })
  File.findOne(req.body.fileID)
    .then(file => file.remove().then(() => res.json({ success: true })))
    .catch(err => res.status(404).json({ success: false }));
});

Where gfs(and multer storage):

(其中gfs（和multer存储）：)

conn.once('open', () => {
  // Init stream
  gfs = Grid(conn.db);
  gfs.collection('files');
});

// // Create storage engine
const storage = new GridFsStorage({
  db: conn,
  file: (req, file) => {
    return new Promise((resolve, reject) => {
      crypto.randomBytes(16, (err, buf) => {
        if (err) {
          return reject(err);
        }
        const filename = buf.toString('hex') + path.extname(file.originalname);
        const fileInfo = {
          filename: filename,
          bucketName: 'files'
        };
        resolve(fileInfo);
      });
    });
  }
});
const upload = multer({ storage });

File(post action):

(文件（后操作）：)

router.post('/', upload.single('file'), auth, (req, res) => {
  const newFile = new File({
    fileID: req.file.id,
    src: 'api/files/image/' + req.file.filename,
    altText: 'No image',
    caption: req.body.caption
    // Grab the file id that was stored in the database by the storage engine as the reference to your file
  })
  newFile.save()

});

File(model):

(文件（型号）：)

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

// Create Schema
const FileSchema = new Schema({
  fileID: {
    type: Schema.Types.ObjectId
  },
  src: {
    type: String,
  },
  altText: {
    type: String,
  },
  caption: {
    type: String,
  },
});

module.exports = File = mongoose.model('file', FileSchema);

  ask by Victor translate from so

Answer 1

等待大神答复