Question

I am completely new to rails and playing with the code to make pages work.
The link localhost:3000/zombies/1 works (show action)
but localhost:3000/zombies (index action) doesn’t. Below are my routes and controller:

ROUTES ARE:
resources :zombies

CONTROLLER is:

 class ZombiesController < ApplicationController
    before_filter :get_zombie_params

   def index
    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @zombies }
    end
   end

   def show
    @disp_zombie = increase_age @zombie, 15
    @zombie_new_age = @disp_zombie
    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @zombie }
    end
  end

  def increase_age zombie, incr
   zombie = zombie.age + incr
  end

  def get_zombie_params
    @zombie=Zombie.find(params[:id])
    @zombies = Zombie.all

  end
end

Why is this?

Answer 1

Editing answer based on the comment

I get a page with the error: ActiveRecord::RecordNotFound in
ZombiesController#index Couldn’t find Zombie without an ID Rails.root:
C:/Sites/TwitterForZombies Application Trace | Framework Trace | Full
Trace app/controllers/zombies_controller.rb:85:in `get_zombie_params’

The url, localhost:3000/zombies which calls index action does not include id parameter.

That’s why the app is failing at @zombie=Zombie.find(params[:id]).

If you want to fix this issue, use before_filter on show action only.

before_filter :get_zombie_params, only: :show

And insert this into index action as I have originally suggested.

def index
  @zombies = Zombies.all
  ...
end