I’m using Mongoose. This works for me, I’m simply using this as a reference to the model. I have a Comment model. Comments can have a reply that is also Comment. var Comment = new mongoose.Schema({ id: { type: ObjectId, required: true }, comment: { type: String }, replies: [ this ], });
Not in “mongoose” specifically, or at least not yet as of writing. The MongoDB shell as of the 2.6 release actually uses the “Bulk operations API” “under the hood” as it were for all of the general helper methods. In it’s implementation, it tries to do this first, and if an older version server is … Read more
Nothing wrong with what you are basically attempting, but perhaps the only clarification here is the common misconception that you need operators like $nin or $in when querying an array. Also you really need to do here is a basic inequality match with $ne: Person.find({ “groups”: { “$ne”: group._id } }) The “array” operators are … Read more
I was not satisfied with the highest rated answer here and so I’m providing a new one: I ended up using the node module ‘gridfs-stream’ (great documentation there!) which can be installed via npm. With it, and in combination with mongoose, it could look like this: var fs = require(‘fs’); var mongoose = require(“mongoose”); var … Read more
Mongoose 5.x https://mongoosejs.com/docs/migrating_to_5.html#array-required tags: { type: [String], validate: v => Array.isArray(v) && v.length > 0, } Mongoose 4.x One-liner would be: tags: {type: [String], required: true} SchemaTypes
According to Documentation found in this link: https://mongoosejs.com/docs/connections.html#buffering Mongoose lets you start using your models immediately, without waiting for mongoose to establish a connection to MongoDB. That’s because mongoose buffers model function calls internally. This buffering is convenient, but also a common source of confusion. Mongoose will not throw any errors by default if you … Read more
Member .findOne({ country_id: 10 }) .sort(‘-score’) // give me the max .exec(function (err, member) { // your callback code }); Check the mongoose docs for querying, they are pretty good. If you dont’t want to write the same code again you could also add a static method to your Member model like this: memberSchema.statics.findMax = … Read more
Jest runs test suites in parallel by default. However, the machine that the tests are running on only has a single port 3000 (or port 4000, etc.) This means that if you tell your app to listen on a port, and then start multiple concurrent processes, there will be a port collision and Jest will … Read more
You can’t do this in a single query because MongoDB doesn’t support joins. Instead, you have to break it into a couple steps: // Get the _ids of people with the last name of Robertson. Person.find({lastname: ‘Robertson’}, {_id: 1}, function(err, docs) { // Map the docs into an array of just the _ids var ids … Read more
This is working fine for me ([email protected]) var schema = new mongoose.Schema({ factors: [{type: String, enum: [‘1’, ‘2’, ‘3’], required: …}] … }) Note I’m using an Array of Objects