CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3ruby-on-rails-4
Mark Dunne
Mark Dunne

Reputation: 431

Rails namespace root error

I'm running into a couple of errors when i try to define a root to a namespace. To recreate this, I'll rebuild a project from scratch.

rails new rails_test
cd rails_test
rails generate controller admin
rake db:migrate

Now I put some boilerplate in app/controllers/admin_controller.rb

class AdminController < ApplicationController
    def index

    end
end

in app/views/admin/index.html.erb

<p>Index</p>

and finally in config/routes.rb

  root to: 'admin#index'

This all works perfectly, when i start the server and hit '/' (root) url (it goes to the admin index page), but it's not what I want.

This is meant to be part of a bigger project and I want to hit the /admin url and get the admin index so (following from http://guides.rubyonrails.org/routing.html#using-root) I change routes.rb to:

  namespace :admin do
    root to: "admin#index"
  end

but I get a routing error:

uninitialized constant Admin

with a routes list containing 1 line:

admin_root_path GET /admin(.:format) admin/admin#index

My thinking from reading the end of this last line is that I'm already in the admin namespace so maybe i don't need to specify the controller index is in so I try changing routes to:

  namespace :admin do
    root to: "index"
  end

But that gives me an ArgumentError saying "missing :action" on the 'root to: "index"' line.

I can get around it by using scope, but it looks like using namespace is a bit cleaner and I want to understand whats going wrong here.

Ruby/Rails versions

ruby -v -> ruby 1.9.3p392 (2013-02-22) [i386-mingw32]
rails -v -> Rails 4.0.0

Any help is apprechiated

Upvotes: 1

Views: 2388

Answers (4)

James
James

Reputation: 2270

I think what you really want is something like

namespace :admin do
    get 'other'
end

get 'admin' => 'admin#index'

This allows for the index and other methods to be in straightforward AdminController controller in usual directory, views to go in views/admin etc.

You could probably also use 

resource :admin, only: [:index] do
    get 'other'
end

Upvotes: 0

Andrew Zhuk
Andrew Zhuk

Reputation: 500

on rails 4 in routes two roots not permited now

use get "/admin" => "admin/admin#index", :as => "admin"

Type in terminal

rails generate scaffold Admin::User username email

rake db:migrate

if only Controller type this

rails generate controller Admin::User

Upvotes: 0

Bart
Bart

Reputation: 2656

namespace namespaces controllers as well. Change yours to

class Admin::AdminController < ApplicationController
    def index

    end
end

And move it under app/controllers/admin. That's what admin/admin#index means. :)

Upvotes: 1

MZaragoza
MZaragoza

Reputation: 10111

According to rubyonrails.org guide on routing you should be able to do something like this. it should looks like this 

namespace :admin do
  root to: "admin#index"
end

root to: "home#index"

What do you get with rake routes?

Upvotes: 0

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