使用猫鼬更新和删除文档中的元素数组

Question

猫鼬模式

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

const ResponseSchema = new Schema({
  title: {
    type: String,
    required: true
  },
  status: {
    type: String,
    required: true
  }
});

const QuestionSchema = new Schema({
  quiz: {
    type: Schema.Types.ObjectId,
    ref: "quizzes"
  },
  title: {
    type: String,
    required: true
  },
  response: [ResponseSchema],
  score: {
    type: String,
    required: true
  }
});

module.exports = Question = mongoose.model("questions", QuestionSchema);

  

我想删除问题文档内响应数组中的元素，然后使用Promises返回新问题，请提供任何帮助！

router.delete(
 "/:idQ/response/:idRes",
  // passport.authenticate("jwt", { session: false }),
  (req, res) => {
    Question.findOne,(
      { _id: req.params.idQ },
      { $pull: { "questions.response": { _id: req.params.idRes } } }
    )
      .then(() => {
        Question.find().then(question => {
          res.json(question);
        });
      })
      .catch(err => res.status(404).json(err));
  }
);

  

我试过了，但是没有更新