I'm using mongoose and I have users collection shown below, but I now want to allow the user to save a number of articles, an article has a title, subtitle, and body, One user can have many articles.
How can I restructure the users collection to allow the articles to be added
const userSchema: Schema = new Schema(
{
email: { type: String, required: true, unique: true },
fullName: { type: String, required: true },
password: { type: String, required: true },
},
{
timestamps: true,
}
);
I'm using the below to set new data to the user's collection, how do I adapt it to allow me to set and get the new articles detailed above?
const confirmed = await userModel
.findOneAndUpdate(
{ email },
{
$set: { password },
}
)
.exec();
You can set the option strict: false and add(save) new fields to your schema.
const userSchema: Schema = new Schema(
{
email: { type: String, required: true, unique: true },
fullName: { type: String, required: true },
password: { type: String, required: true },
},
{
strict: false,
timestamps: true,
}
);
Here is the docs
Related
i want to add batch,department,stream,id fields to the schema depending if usertype is “Student”,i do not understand why,but sometimes it adds the fields sometimes not.forexample if i created a user with usertype “Student” first it does not add the fields,but after that when i created a user with usertype “Teacher” or “Admin” it asks me the fields are required meaning it add the fields and this happens vice versa.why any way to fix this issue?please help guys.
what i have tried well,i have asked chatGpt but no answers i mean just the answers do not solve the issue.
here is the code
const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const userSchema = new Schema(
{
fullName: { type: String, required: true, unique: true },
email: { type: String, required: true, unique: true },
userType: {
type: String,
required: true,
},
phoneNumber: { type: String, required: true },
password: { type: String, required: true },
approved: { type: Boolean, default: true },
},
{
timestamps: true,
}
);
userSchema.pre("validate", function (next) {
if (this.userType === "Student") {
this.constructor.schema.add({
batch: {
type: Number,
required: true,
},
department: {
type: String,
required: true,
},
stream: {
type: String,
required: true,
},
id: { type: String, required: true }, //, unique: true
});
}
next();
});
const userModel = mongoose.model("users", userSchema);
module.exports = userModel;
everyone.
So I have this "blog" app where users can create posts with images.
How my app works is that it loads different posts by userID.
So I have a relation bewtean user and post by the user and post _id, however I also want to save username into the post schema and created ralation that way. Is it possible to do such thing ?
This is my User schema
import mongoose from "mongoose";
import mongooseUniqueValidator from "mongoose-unique-validator";
const Schema = mongoose.Schema;
const validator = mongooseUniqueValidator;
const user_Schema = new Schema({
username: { type: String, required: true, unique: true },
email: { type: String, required: true, unique: true },
password: { type: String, required: true, minlength: 3 },
user_image: { type: String },
posts: [{ type: mongoose.Types.ObjectId, required: true, ref: 'Post' }], //relation bewtean post and user
},{ timestamps: true }
);
user_Schema.plugin(validator);
export const USER: mongoose.Model<any> = mongoose.model("User", user_Schema);
And this is my Post Schema:
import mongoose from "mongoose";
const Schema = mongoose.Schema;
const post_Schema = new Schema({
title: { type: String, required: true, },
description: { type: String, required: true, },
imageURL: { type: String },
creator_id: { type: mongoose.Types.ObjectId, required: true, ref: 'User' },
},
{ timestamps: true }
);
export const POST: mongoose.Model<any> = mongoose.model("Post", post_Schema);
However this is what I want the post to contain, I want the post to contain ID of the user who created it and the name of the user who created it.
However I do not know how to create it. So this is how I want my Post schema to look like, I want to be able to save both the user ID and username into the post.
const Schema = mongoose.Schema;
const post_Schema = new Schema({
title: { type: String, required: true, },
description: { type: String, required: true, },
imageURL: { type: String },
user: {
creator_id: { type: mongoose.Types.ObjectId, required: true, ref: 'User' }, //relation bewtean post and user
creator_name: { <soemthing here>, ref: 'User' }, //relation bewtean post and user
},
},
{ timestamps: true }
);
export const POST: mongoose.Model<any> = mongoose.model("Post", post_Schema);
If you want to retrieve the creator name using the ref is the correct approach, you just need to populate the Post documents when you are retrieving them with:
const posts = await Post.find({}).populate('creator').exec()
for (const post of posts) {
// Every post should contain the creator user properties
console.log(post.creator._id, post.creator.username)
}
Just make sure that your ref fields are of type mongoose.Schema.Types.ObjectId:
const post_Schema = new Schema(
{
title: { type: String, required: true },
description: { type: String, required: true },
imageURL: { type: String },
creator: { type: mongoose.Schema.Types.ObjectId, required: true, ref: 'User' },
},
{ timestamps: true }
);
export const POST: mongoose.Model<any> = mongoose.model('Post', post_Schema);
I am pretty new to mongoDb and want to apply nested query.
I have a business schema like this:
const businessSchema = new mongoose.Schema(
{
name: {
type: String,
required: true,
},
businessType: {
type: Schema.Types.ObjectId,
ref: "businessCategory",
required: true,
},
email: {
type: String,
required: true,
},
password: {
type: String,
required: true,
select: false,
},
review: {
type: [reviewSchema],
},
isDeleted: {
type: Boolean,
default: false,
},
},
{ timestamps: true }
);
Business has a review where user can do the review and reviewSchema is
const reviewSchema = new mongoose.Schema(
{
user: {
type: Schema.Types.ObjectId,
ref: "users",
required: true,
},
rating: {
type: Number,
enum: [1, 2, 3, 4, 5],
},
reviewArray: {
type: [singleReviewSchema],
},
},
{ timestamps: true }
);
One user can do many reviews, and it has reviewArray.
ReviewArray schema is
const singleReviewSchema = new mongoose.Schema(
{
title: {
type: String,
},
description: {
type: String,
},
isDeleted: {
type: Boolean,
default: false,
},
},
{ timestamps: true }
);
How to fetch the business with a condition business: isDeleted:false and its reviews with singleReviewSchema: isDeleted:false
I dont know your model names, so please replace path with correct names
but it might look like:
businnesModel.find({isDeleted: false})
.populate({
path: 'reviewModelName',
model: 'review',
populate: {
path: 'reviewArray',
model: 'singleReviewModelName',
match: {
isDeleted : false
}
}
})
It should provide you array of businessModel documents - even when their singleReviews array will be empty (because all of reviews are deleted, or there was zero reviews). So you have to filter it out in JS.
To avoid filtering in JS, and to do it a bit more efficient way for mongodb, you can go with aggregate instead.
My service uses MongoDB and Mongoose. I have two DBs: Users and Posts. In Posts schema I have parameters:
"author", that contains userId from Users DB
"anonymous", a boolean-parameter that shows if the post is anonymous or not.
I can't solve the problem: when I request data from Posts DB I want to populate author in the "author" parameter only for non-anonymous posts, for anonymous ones I'd like to return null or not to return this parameter at all.
I've tried to use "match", but it doesn't work.
How can I solve this problem?
Thank you.
Code example:
const postSchema = mongoose.Schema(
{
author: {
type: mongoose.Schema.Types.ObjectId,
required: true,
ref: 'User',
},
anonymous: {
type: Boolean,
required: true,
default: false,
},
content: {
type: String,
required: true,
},
date: {
type: Date,
required: true,
default: Date.now,
},
},
{
timestamps: true,
}
);
For population I use pre:
postSchema.pre(/^find/, function (next) {
this.populate({
path: 'author',
select: '_id login',
});
next();
});
If two schemas are in the same file, you can reference it with: [AccountSchema]. You can see that in the "accounts" property of the UserSchema.
import express from 'express'
import mongoose from 'mongoose'
const Schema = mongoose.Schema
import Account from './accounts'
let AccountSchema = new Schema ({
accountName: {
type: String,
trim: true,
required: true,
unique: [true, "You already have an account with this name."],
},
percent: {
type: Number,
min: 1,
max: 100,
required: true
},
isGoal: {
type: Boolean,
default: false
},
accountHistory: {
type: Array
}
})
let UserSchema = new Schema ({
username: {
type: String,
unique: [true, "This username is taken."],
trim: true,
},
email: {
type: String,
unique: [true, "This email is already being used."],
trim: true
},
password: {
type: String,
trim: true
},
infusions: {
type: Array,
timestamps: true
},
accounts: {
type: [AccountSchema],
count: {
type: Number,
default: 8
}
},
secretToken: {
type: String
},
active: {
type: Boolean,
default: false
},
isAdmin: {
type: Boolean,
default: false
}
}, {
timestamps: true,
})
const User = mongoose.model('users', UserSchema)
export default User
But what do you do if the schemas are in separate files? How can you reference them? I tried like this, but it didn't work:
// account.js
import express from 'express'
import mongoose from 'mongoose'
const Schema = mongoose.Schema
let AccountSchema = new Schema ({
accountName: {
type: String,
trim: true,
required: true,
unique: [true, "You already have an account with this name."],
},
percent: {
type: Number,
min: 1,
max: 100,
required: true
},
isGoal: {
type: Boolean,
default: false
},
accountHistory: {
type: Array
}
})
const Account = mongoose.model('users', AccountSchema)
export default Account
And the User schema in a separate file with:
// users.js
import express from 'express'
import mongoose from 'mongoose'
const Schema = mongoose.Schema
import Account from './accounts'
let UserSchema = new Schema ({
username: {
type: String,
unique: [true, "This username is taken."],
trim: true,
},
email: {
type: String,
unique: [true, "This email is already being used."],
trim: true
},
password: {
type: String,
trim: true
},
infusions: {
type: Array,
timestamps: true
},
accounts: {
type: [Account],
count: {
type: Number,
default: 8
}
},
secretToken: {
type: String
},
active: {
type: Boolean,
default: false
},
isAdmin: {
type: Boolean,
default: false
}
}, {
timestamps: true,
})
const User = mongoose.model('users', UserSchema)
export default User
In one article I was told to export the schema, not the model that references the schema, but they did not give any idea as to how to achieve that.
Try removing below line from your account.js file
const Account = mongoose.model('users', AccountSchema);
And change the last line to this
export default AccountSchema;