How to parsed serialize nested hash in ruby on rails? - ruby-on-rails

Question

I have order model which has one serialise column as order_details. When I tries to call index action it returns the hash in order_details key.
I want all the values of order_details in main object of order.
My order model as below:
# models/order.rb
class Order < ActiveRecord::Base
belongs_to :user
serialize :order_details
....
end
Controller
# controllers/orders_controller.rb
class OrdersController < ApplicationController
def index
orders = Order.select('id, user_id, total, order_details')
render json: orders, status: :ok
end
end
The JSON response I received is as below:
[{
"order":{
"id":1,
"user_id":1,
"total": 1000,
"order_details":{
"payment_done_by":"credit/debit",
"transaction_id":"QWERTY12345",
"discount":210,
"shipping_address": "This is my sample address"
}
},
{
"order":{
"id":2,
"user_id":2,
"total": 500,
"order_details":{
"payment_done_by":"net banking",
"transaction_id":"12345QWERTY",
"discount":100,
"shipping_address": "This is my sample address 2"
}
}
]
But here I need response in below format
[{
"order":{
"id":1,
"user_id":1,
"total": 1000,
"payment_done_by":"credit/debit",
"transaction_id":"QWERTY12345",
"discount":210,
"shipping_address": "This is my sample address"
},
{
"order":{
"id":2,
"user_id":2,
"total": 500,
"payment_done_by":"net banking",
"transaction_id":"12345QWERTY",
"discount":100,
"shipping_address": "This is my sample address 2"
}
]
I was trying to parsed each response using each but result can have hundreds of user object.
Please help here.
Thanks in advance.

Answer 1

Krishna
you should add as_json to your Order model to override the existing method with the same name for you to meet your expected output
def as_json(options = nil)
if options.blank? || options&.dig(:custom)
attrs = attributes.slice("id", "user_id", "total")
attrs.merge(order_details)
else
super
end
end
then, in your controller
def index
orders = Order.all
render json: orders, status: :ok
end
hope that helps
FYR: https://api.rubyonrails.org/classes/ActiveModel/Serializers/JSON.html#method-i-as_json