Car dealer Backend Files

car_item.rb

#CarItem model
class CarItem < ApplicationRecord
    belongs_to :model_info

    
end

car_items_controller.rb

class CarItemsController < ApplicationController
    
    def index
        @CarItem = CarItem.all

        render json: @CarItem
    end

end

model_info.rb

#ModelInfo model
class ModelInfo < ApplicationRecord
    has_many :car_items
end

model_infos_controller.rb

class ModelInfosController < ApplicationController

    def index
        #get all the listings from the database
        @ModelInfo = ModelInfo.all

        render json: @ModelInfo
    end

end

routes.rb

Rails.application.routes.draw do
  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
  resources :model_infos, only: [:index]
  resources :car_items, only: [:index, :show]
end