mongoose

问题 I defined a custom database-specific Module to connect a MongoDB via Mongoose APIs. The complete code is here. { provide: DATABASE_CONNECTION, useFactory: (dbConfig: ConfigType<typeof mongodbConfig>): Connection => createConnection(dbConfig.uri, { useNewUrlParser: true, useUnifiedTopology: true, //see: https://mongoosejs.com/docs/deprecations.html#findandmodify useFindAndModify: false }), inject: [mongodbConfig.KEY], }, When writing tests for this provider, I want to confirm the database

问题 I'm trying to save datetime values in TodoForm but those values are not reflected in database. This is my todo model. Todo.js const mongoose = require('mongoose'); const { Schema } = mongoose; const todoSchema = new Schema({ name: String, description: String, isDone: Boolean, createdAt: Date, updatedAt: Date }, {timestamps: {createdAt: 'created_at' updatedAt: 'updated_at'}} ); mongoose.model('todos', todoSchema); Then Follows my todosController post route. TodosController: app.post('/api

问题 I have a current MongoDB Aggregate framework pipeline from a previous question and I am unable to add populate query to grab user profile by id. My code is below Product.aggregate([ { $group: { _id: { hub: "$hub", status: "$productStatus", }, count: { $sum: 1 }, }, }, { $group: { _id: "$_id.hub", counts: { $push: { k: "$_id.status", v: "$count", }, }, }, }, { $group: { _id: null, counts: { $push: { k: { $toString: "$_id" }, v: "$counts", }, }, }, }, { $addFields: { counts: { $map: { input: "

问题 I am trying to build an authentication panel for the MEAN stack using PassportJS. I have the following code for registering new users with email (instead of the default username) and password: router.post("/register", function (req, res) { var newUser = new User({ username: req.body.email }); User.register(newUser, req.body.password, function (err, user) { if (err) { return res.render('account/signup'); } passport.authenticate("local")(req, res, function () { res.redirect("/account/profile");

问题 I am trying to make Schema using mongoose and stuck in a point on how to apply custom validation for the password, where password contains: one special character password should have one lowercase and one uppercase character password should have a length of more than 6 Here is the Schema: const mongoose = require('../db/mongoose'); const validator = require('validator'); const UserSchema = new mongoose.Schema({ email: { type: String, validate: { validator: validator.isEmail() } }, password: {

问题 In my Mongoose Schema I'm trying to simulate a dictionary offersInCategory that looks like this: offersInCategory = { "Electronics": 2, "Furniture": 5 }; Mongoose doesn't support dictionaries so I'm forced to use object literals in an array instead, like so: offersInCategory: [{ category: { type: String, enum: ['Furniture', 'Household', 'Electronicts', 'Other'] }, val: { type: Number, min: 0 } }] My problem with this approach is it feels unintuitive. Furthermore it doesn't prevent my model

问题 The save function works perfectly but, the find function just below it returns null on searching the save object which is previously saved. Here is the code: var mongoose = require("mongoose"); var User = mongoose.model("User"); module.exports.register = function(req, res) { var user = new User(); user.name = req.body.name; user.email = req.body.email; user.setPassword(req.body.password); user.save(function(err) { var token; token = user.generateJwt(); res.status(200); res.json({ token: token

问题 I'm trying to match two different fields in the same document. But didn't get expected output as I want. Let me show with an example. I want to match weighted.phaseId with phases._id in same documents and not match should be removed from phases fields. Does any one have an Idea ? // Document after processing some aggregate query over a database. { "_id" : ObjectId("5a680c803096130f93d11c7a"), "weighted" : [ { "phaseId" : ObjectId("5a6734c32414e15d0c2920f0"), "_id" : ObjectId(

问题 I'm using MongoDB and i have the following schema of person collection: Person { age: [number] } i want to check if the age of a person exist in array, for exemple [15, 20, 12, 0]. i need something like $in operator but in reverse. schema: initiatives : { ressources: [ { departement: ObjectId } { departement: ObjectId } ] ) 回答1: You can use $expr with $in: Person.find({ $expr: { $in: [ "$age", [15, 20, 12, 0] ] } }) EDIT: to compare arrays you need $setIntersection and $size operators, try:

问题 I have a mongoose schema defined like the following one: { Username: { type: String, unique: true, required: true, }, Password: { type: String, required: true, minlength: 10, maxlength: 20 } } For example after we launch the production build of our app which is running live, if I want to change "unique" to unique: false for the "Username" how should I do it? So on my machine when the server is running i created a User with Username and Password, mongo created User for me, now i changed the