如何从 mongodb 中删除多个文档

Question

我正在尝试 deleteFeature，同时我希望删除与该功能相关的所有 cmet，但我不知道该怎么做。

我的 deleteFeature 方法-

exports.deleteFeature = (req, res) => {   
  try {
    const { slug } = req.params;
    Feature.findOne({ slug: slug.toLowerCase() }).exec((err, feature) => {
      if (err) {
        return res.status(400).json({
          error: errorHandler(err),
        });
      }
      console.log("Test");
      Comment.deleteMany({ _id: feature._id });
      console.log("chest");
 
      feature.remove();
      console.log("Best");
 
      return res.json({
        message: "Your Feature has been Deleted Successfully",
      });
    });
    
  } catch (error) {
    return res.status(400).json({
      error: error,
    });   
  } 
};

我在评论模型上有这个 -

feature: {
    type: ObjectId,
    ref: "Feature",
    required: true,
  },

因此，当我删除一个特征时，我想删除该特征字段上所有包含该特征的 _id 的 cmets

Answer 1

改变

 Comment.deleteMany({ _id: feature._id });

至

 Comment.deleteMany({ feature: feature._id });