How can I add a User to the School's admins field?
School Schema:
const School = new Schema({
name: { type: String, required: true },
grades_primary: [{ type: Schema.Types.ObjectId, ref: 'Grade' }],
grades_secondary: [{ type: Schema.Types.ObjectId, ref: 'Grade' }],
admins: [{ type: Schema.Types.ObjectId, ref: 'User' }]
})
User Schema
const User = new Schema({
complete_name: { type: String, required: true, },
password: { type: String, required: true },
nombre_de_usuario: { type: String, unique: true, required: true },
email: { type: String, unique: true, required: true },
})
I tried this but it didn't work:
const saved_user = await user.save()
created_school.admins.push(saved_user)
await created_school.save()
use $push
const saved_user = await user.save()
try {
const created_school= await School.findOneAndUpdate({ _id: '1' }, { $push: { admins: saved_user } })
// ....
} catch (error) {
console.log(error);
}
Related
I am trying to use mongoose populate function but in response I am getting empty array. I know there are several questions talking about the same subject but none worked for my case.
My objective is to populate my Order document.
This is how my schemas are organized:
Menu.js
const mongoose = require("mongoose");
const { Schema } = mongoose;
const Food = require("./Food");
const Drink = require("./Drink");
const MenuSchema = new Schema({
code: {
type: mongoose.ObjectId,
required: true,
unique: true,
},
name: {
type: String,
required: true,
},
food: {
type: [Food.schema],
required: false,
},
drinks: {
type: [Drink.schema],
required: false,
},
type: {
type: String,
},
createdAt: {
type: Date,
default: Date.now,
},
});
module.exports = mongoose.model("Menu", MenuSchema);
Note: Im using Food.schema and Drink.schema inside my Arrays instead of making a ref. Im storing the Food and Drink models inside of the Menu model
Food.js
const mongoose = require("mongoose");
const { Schema } = mongoose;
const FoodSchema = new Schema({
code: {
type: mongoose.ObjectId,
required: true,
unique: true,
},
description: {
type: String,
required: true,
},
ingredients: {
type: [],
required: false,
default: [],
},
stock: {
type: Number,
required: true,
},
type: {
type: String,
enum: ["starter", "main", "dessert"],
required: true,
},
price: {
type: Number,
required: true,
},
createdAt: {
type: Date,
default: Date.now,
},
});
module.exports = mongoose.model("Food", FoodSchema);
Drink.js
const mongoose = require("mongoose");
const { Schema } = mongoose;
const DrinkSchema = new Schema({
code: {
type: mongoose.ObjectId,
required: true,
unique: true,
},
description: {
type: String,
required: true,
},
stock: {
type: Number,
required: true,
},
price: {
type: Number,
required: true,
},
createdAt: {
type: Date,
default: Date.now,
},
});
module.exports = mongoose.model("Drink", DrinkSchema);
Order.js
const mongoose = require("mongoose");
const { Schema } = mongoose;
const OrderSchema = new Schema({
code: {
type: mongoose.ObjectId,
required: true,
unique: true,
},
type: {
type: String,
required: true,
enum: ["restaurant", "takeaway", "delivery"],
},
food: {
type: [{ type: mongoose.ObjectId, ref: "Food" }],
required: false,
default: [],
},
drinks: {
type: [{ type: mongoose.ObjectId, ref: "Drink" }],
required: false,
default: [],
},
orderValue: Number,
client_id: {
type: mongoose.ObjectId,
ref: "Client",
required: false,
},
createdAt: {
type: Date,
default: Date.now,
},
});
module.exports = mongoose.model("Order", OrderSchema);
This is the controller where I'm trying to make my populate work. Whenever I remove the populate method I get the _id references for the Food and Drink arrays.
TableController.js
exports.getOrderFromTable = async (req, res) => {
const { code, tableCode } = req.params;
try {
const foundRestaurant = await Restaurant.findOne({ code: code });
const foundTable = foundRestaurant.tables.filter(
(table) => table.code == tableCode
);
console.log(foundTable[0].order_id);
const foundOrder = await Order.findOne({
_id: foundTable[0].order_id,
})
.populate("food")
.populate("drinks");
res.send(foundOrder);
} catch (err) {
res.json({ message: err });
}
};
And this is what the mongoose debugger returns when I run the controller:
Mongoose: restaurants.findOne({ code: new ObjectId("62a60dcb9fe25d276815675c") }, { projection: {} })
new ObjectId("62a60ece9fe25d27681567b7")
Mongoose: orders.findOne({ _id: new ObjectId("62a60ece9fe25d27681567b7") }, { projection: {} })
Mongoose: foods.find({ _id: { '$in': [ new ObjectId("62a60e039fe25d276815677d"), new ObjectId("62a60e169fe25d2768156785") ], [Symbol(mongoose#trustedSymbol)]: true }}, { skip: undefined, limit: undefined, perDocumentLimit: undefined, projection: {}})
Mongoose: drinks.find({ _id: { '$in': [ new ObjectId("62a60e259fe25d276815678d"), new ObjectId("62a60e3c9fe25d276815679c") ], [Symbol(mongoose#trustedSymbol)]: true }}, { skip: undefined, limit: undefined, perDocumentLimit: undefined, projection: {}})
And finally this is the JSON file I get when I do a GET http request using Postman:
{
"_id": "62a60ece9fe25d27681567b7",
"code": "62a60ece9fe25d27681567b6",
"type": "restaurant",
"food": [],
"drinks": [],
"orderValue": 25,
"createdAt": "2022-06-12T16:05:34.513Z",
"__v": 0
}
Thank you for any help. I've been really struggling with this method.
This is my user model code. I am referencing the favorites using dynamic referencing as there are three types of posts that can be added to favorites
import mongoose from 'mongoose'
import bcrypt from 'bcryptjs'
const userSchema = mongoose.Schema(
{
name: {
type: String,
required: true,
},
email: {
type: String,
required: true,
unique: true,
},
password: {
type: String,
required: true,
},
isAdmin: {
type: Boolean,
required: true,
default: false,
},
contact:{
type:Number,
required: true,
unique:true
},
cnic: {
type: Number,
required: true,
unique: true
},
favorites: [
{
postType: {
type: String
},
postId: {
type: mongoose.Schema.Types.ObjectId,
refPath: 'postType'
},
}
],
itemsRented: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'Rent',
}
],
itemsRentedOut: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'Rent',
}
],
collectionRequestsSent: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'CommunityService',
}
],
itemsCollected: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'CommunityService',
}
],
servicesOrdered: [
{
type:mongoose.Schema.Types.ObjectId,
ref: 'Services'
}
],
paymentDetails: {
card: { type: Number },
cvc: { type: Number },
name: { type: String },
email: {type: String },
expiryDate: {
month: { type: Number },
year: { type: Number }
},
},
address: { type: String },
isDisputeResolutionStaff: {
type: String,
default: false
}
},
{
timestamps: true,
}
)
userSchema.methods.matchPassword = async function (enteredPassword) {
return await bcrypt.compare(enteredPassword, this.password)
}
userSchema.pre('save', async function (next) {
if (!this.isModified('password')) {
next()
}
const salt = await bcrypt.genSalt(10)
this.password = await bcrypt.hash(this.password, salt)
})
const User = mongoose.model('User', userSchema)
export default User
This is my controller. I want to get the posts' details added to favorites by using populate but when I run the code it returns the user object not the post details
const getFavorites = asyncHandler(async(req,res) => {
await User.
findById("61b51adfb7b8a64fd87420d3").
populate("favorites").
exec(function (err, story) {
if (err) throw new Error(err);
console.log(story);
});
})
I have an array of posts and each post contains an author id. I want to loop through each post and find author from User model by using author id and then attach it to post. What is the best and efficient way to do it. I am currently doing it this way, but it decreases the performance. Thanks.
posts = await Promise.all(
posts.map(async post => {
post.author = await User.findById(post.author).lean();
return post;
})
);
// POST SCHEMA
const postSchema = new mongoose.Schema({
author: {
type: String,
required: true
},
body: {
type: String,
required: true
},
post_image: {
url: String,
public_id: String,
width: Number,
height: Number
},
date_created: {
type: Date,
default: Date.now()
}
});
// USER SCHEMA
const userSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
email: {
type: String,
required: true,
unique: true
},
password: {
type: String,
required: true
},
register_date: {
type: Date,
required: true,
default: Date.now()
},
friends: {
type: Array,
default: []
}
});
// NEW POST SCHEMA
const postSchema = new mongoose.Schema({
author: {
type: mongoose.Schema.Types.ObjectId,
ref: 'users',
required: true
},
body: {
type: String,
required: true
},
post_image: {
url: String,
public_id: String,
width: Number,
height: Number
},
date_created: {
type: Date,
default: Date.now()
}
});
// USER SCHEMA
const userSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
email: {
type: String,
required: true,
unique: true
},
password: {
type: String,
required: true
},
register_date: {
type: Date,
required: true,
default: Date.now()
},
friends: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'users',
required: true
}],
});
You can use auto population of mongo object in mongoose. It won't cause performance issues as it uses id index. Similar to this doc: https://mongoosejs.com/docs/populate.html
Your query will look like this:
const post = await Post.find({ author: { $in: req.user.friends }})
.populate('author')
.exec();
console.log(post);
Or you can use aggregate according to this document: https://mongoosejs.com/docs/api/aggregate.html
Your query will then look like:
const query = [
{ $match: { author: { $in: req.user.friends } } },
{ $lookup: { from: "users", localField: "author", foreignField: "_id", as: "authorDetails" } },
{ $unwind: "authorDetails" },
]
const post = await Post.aggregate(query).exec();
console.log(post);
So the example right now is for the User table.. I have a UserWeapon document embedded that is an array of all the weapon's a user has and how many kills they have with the weapon. I want to write a query that when given the userId, weaponId, and new kills, it'll update the sub document accordingly.
So something like
const user = await User.findById(userId);
const userWeapon = await user.userWeapon.findById(weaponId);
userWeapon.kills = userWeapon.kills + newAmmountOfKills
user.save();
What would be the most efficient way to do this?
Schemas:
const UserWeaponSchema = new Schema({
weapon: { type: Schema.Types.ObjectId, ref: 'Weapon' },
user: { type: Schema.Types.ObjectId, ref: 'User' },
kills: {
type: Number,
required: true,
unique: false,
},
deaths: {
type: Number,
required: true,
unique: false
},
equippedSkin: {
type: Schema.Types.ObjectId, ref: 'WeaponSkin',
required: false,
},
ownedWeaponSkins: [{ type: Schema.Types.ObjectId, ref: 'WeaponSkin'}]
});
const UserSchema = new Schema({
username: {
type: String,
required: true,
unique: true,
},
password: {
type: String,
required: true,
},
weapons: [{
type: Schema.Types.ObjectId, ref: 'UserWeapon'
}],
});
You can use $inc operator and run update operation, something like:
UserWeaponSchema.update({ weapon: weaponId, user: userId }, { '$inc': { 'kills': newAmmountOfKills } })
I have this User model:
const userSchema = new Schema({
_id: {
type: Schema.Types.ObjectId,
required: true
},
name: {
type: String,
required: true
},
email: {
type: String,
unique: true,
required: true
},
notification: {
experiment_id: {
type: Schema.Types.ObjectId,
ref: "Experiment",
required: false
},
seen: {
type: Boolean,
required: true,
default: false
}
}
});
And this Experiment model:
const experimentSchema = new Schema(
{
_id: {
type: Schema.Types.ObjectId,
required: true
},
name: {
type: String,
required: true
},
description: {
type: String,
required: true,
default: "No Description"
},
author_id: {
type: Schema.Types.ObjectId,
ref: "User",
required: true
}
);
I am trying to populate from User the experiment_id in notification.
And from this populate, I would like to populate the author_id as well.
I have seen some code like I have done below but I didn't succeed.
I am trying this:
User.find(
{
_id: req.params.currentUserId
},
"notification"
)
.populate({ path: "experiment_id", populate: { path: "author_id" } })
.exec((err, notif) => {
});
I fixed it by adding notification.experiment_id in the path
User.find(
{
_id: req.params.currentUserId
},
"notification"
)
.populate({ path: "notification.experiment_id", populate: { path: "author_id" } })
.exec((err, notif) => {
});