Rails routing error - uninitialized constant ArticlesController

Question

I read the solutions to the problem on the following posts, but I couldn't apply them to my case:

I am working on a test blog and I wanted to create a page for new articles called 'new.html.erb'. Here is it's code:

<h1 align="center">Create an article</h1>
<% end %>
<%= form_for @article do |f| %>
<p>
<%= f.label :title %><br/>
<%= f.text_field :title %>
</p>
<p>
<%= f.label :description %><br/>
<%= f.text_area :description %>
</p>
<p>
<%= f.submit %>
</p>
<% end %>

I also created a controller called 'articles.controller.rb':

class ArticlesController < ApplicationController
  def new
    @article = Article.new
  end
end

I added the following line in the 'routes.rb'

resources :articles

When I try to access /articles/new in my rails app, it shows:

uninitialized constant ArticlesController

'$ rake routes' gives me the following output:

      Prefix Verb   URI Pattern                  Controller#Action
        root GET    /                            pages#home
 pages_about GET    /pages/about(.:format)       pages#about
    articles GET    /articles(.:format)          articles#index
             POST   /articles(.:format)          articles#create
 new_article GET    /articles/new(.:format)      articles#new
edit_article GET    /articles/:id/edit(.:format) articles#edit
     article GET    /articles/:id(.:format)      articles#show
             PATCH  /articles/:id(.:format)      articles#update
             PUT    /articles/:id(.:format)      articles#update
             DELETE /articles/:id(.:format)      articles#destroy

Here is my app on Github.

Deepak Mahakale Deepak Mahakale · Accepted Answer · 2016-11-07T10:37:57

Rename your controller

articles.controller.rb to articles_controller.rb

Your controller name must be underscore _ separated.

Rails routing error - uninitialized constant ArticlesController

2 Answers