How to add schema to another schema array? - node.js

Question

I have address schema and customer schema. I have a field address array inside my customer schema. I will be sending an adress model as my req body and customer id as req param. How can I save that adress to adresses array which is declared inside customer schema?
This is my Customer Schema
const customerSchema = mongoose.Schema ({
_id: mongoose.Schema.Types.ObjectId,
name: String,
phone_number: String,
password: String,
type:{type:String,enum:['admin','user']},
adresses:['Adress'],
orders:[{type: mongoose.Schema.Types.ObjectId, ref: 'Order'}]
});
This is my Adress Schema
const addressSchema= mongoose.Schema({
_id:mongoose.Types.ObjectId,
postalCode:Number,
city:String,
district:String,
neighborhood:String,
streetNumber:String,
no:Number,
buildingName:String,
apartmentNumber:Number,
floor:Number,
coordinates:{
latitude:Number,
longitude:Number
},
addressName:String,
customerId: {type: mongoose.Schema.Types.ObjectId,ref:'Customer'}
});
I could not figure out how am ı going to do this. I am finding the customer which I will going to push my address to like this.
This is how I get the specific customer
Customer.find({_id:req.params.customerId},(err,data)=>{
if(err) return next(err);
else{
//What I am going to do here?
}
});
First what type should I put inside the addresses array which is inside Customer Schema?
Second after finding the customer which I am going to add address to, what should I do? Mongoose 5.4.11 documentation was not enough for me. This link seemed what I needed but I did not figure out how to accomplish this problem.
https://mongoosejs.com/docs/subdocs.html

Answer 1

OK, so basically what You look for is: association. You need to establish a connection between User and Customer model.
We will say that Address belongs to the User and User reference Address object by for example id.
Consider an example:
const personSchema = Schema({
_id: Schema.Types.ObjectId,
name: String,
age: Number,
stories: [{ type: Schema.Types.ObjectId, ref: 'Story' }]
});
const storySchema = Schema({
author: { type: Schema.Types.ObjectId, ref: 'Person' },
title: String,
fans: [{ type: Schema.Types.ObjectId, ref: 'Person' }]
});
const Story = mongoose.model('Story', storySchema);
const Person = mongoose.model('Person', personSchema);
Now let's try to assign an author to particular created story:
const author = new Person({
_id: new mongoose.Types.ObjectId(),
name: 'Ian Fleming',
age: 50
});
author.save(function (err) {
if (err) return handleError(err);
const story1 = new Story({
title: 'Casino Royale',
author: author._id // assign the _id from the person
});
story1.save(function (err) {
if (err) return handleError(err);
// thats it!
});
});
When you define relation between Story and Person, it is easy to manipulate references between them.
In your case you should define a reference in models and then you are able to manipulate the fields:
Customer.findOne({_id:req.params.customerId}, function(error, customer) {
if (error) {
return handleError(error);
}
customer.address = newAddress; // set customer's address to the desired address
// console.log(customer.address.city);
});
Check doc for more.