CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3
Pavan Kumar
Pavan Kumar

Reputation: 1735

What's the next step after creating controller and model in Ruby

I have created a controller and a model for my application. I want to get the data in json format. Where can I see my output? If I run the controller it doesn't respond. I am listing the files. Finally I want to get data from the products table from database in json format. What to do to get my data?

My Controller:

class ShoppingDemo < ApplicationController

  def index
    @lists=Product.all;
    respond_to do |format|
      format.html
      format.json { render json: @lists}
    end
   end

   def show
    @products = products.find(params[:prod_id])

    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @products }
    end
  end

end


My Model:

class product < Activerecord::Base
  attr_accessible :model_name, :brand_name, :price, :discount, :qty_available
end

show.html.erb


<p>
  <b>model_name:</b>
  <%= @products.model_name %>
</p>

<p>
  <b>Brand_name:</b>
  <%= @products.brand_name %>
</p>

<p>
  <b>Price:</b>
  <%= @products.price %>
</p>

<p>
  <b>Discount:</b>
  <%= @products.discount %>
</p>

<p>
  <b>Quantity:</b>
  <%= @products.qty_available %>
</p>

Upvotes: 0

Views: 92

Answers (2)

VenkatK
VenkatK

Reputation: 1305

Write the following inside products_controller.rb file.

  def index
   @products = Product.all

   respond_to do |format|
    format.html # index.html.erb
    format.json { render json: @products }
   end
  end
  def show
    @product = Product.find(params[:id])

    respond_to do |format|
     format.html # show.html.erb
     format.json { render json: @product }
     end
  end


In your routes.rb file add the following line.
resources :products

And go ahead accordingly.

I could find you are not much aware of ruby on rails. Please have a look on the document.
http://guides.rubyonrails.org/

Upvotes: 0

VenkatK
VenkatK

Reputation: 1305

First of all, your query in show method is completely wrong.
Write show method like following:

def show
  @products = Product.find(params[:prod_id])

  respond_to do |format|
    format.html # show.html.erb
    format.json { render json: @products }
  end
end

And write <%= @products.to_json %> in your show.html.erb.
Otherwise you can check by adding the .json extension in the url. Eg: http://localhost:3000/shopping_demos/1.json

Upvotes: 1

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