Laravel 8 - How to add items on list with relationship - php

Question

I have 3 relational tables Cart, CartProducts and Products and in the query I have the low JSON result, but I want to add the product name and description information in cart_products.
Relationships:
Cart with CartProduct
public function cartProducts()
{
return $this->hasMany(CartProduct::class);
}
CartProduct with Product:
public function products()
{
return $this->belongsTo(Product::class);
}
And the query:
$data = Cart::with(['cartProducts'])->where('user_id', '=', $id)->orderBy('id')->get();
[
{
"id": 1,
"user_id": 4,
"amount": 55,
"cart_products": [
{
"id": 1,
"cart_id": 1,
"product_id": 6,
"price": 7.8,
"quantity": 1
},
{
"id": 3,
"cart_id": 1,
"product_id": 5,
"price": 66,
"quantity": 5
}
]
}
]
and this is the result I want
[
{
"id": 1,
"user_id": 4,
"amount": 55,
"cart_products": [
{
"id": 1,
"cart_id": 1,
"product_id": 6,
"name": "Product a"
"price": 7.8,
"quantity": 1
},
{
"id": 3,
"cart_id": 1,
"product_id": 5,
"name": "Product b"
"price": 66,
"quantity": 5
}
}
]
Tables
Cart: id|user_id|amount
--------------------------------------------------
CartProduct: id|cart_id|product_id|price|quantity
[![enter image description here][1]][1]
[1]: https://i.stack.imgur.com/QDSRb.png

Answer 1

You can simply add an accessor and append it to your CartProduct model.
class CartProduct
{
protected $appends=[
'product_name'
];
public function getProductNameAttribute()
{
return $this->product->name;
}
}