Question

Am having trouble getting the Atom feed function to work on my blog. I am using the Kaminari plug-in to paginate my articles – 6 per page. With the code below, when a user clicks on the RSS Feed image they are asked to log-in instead of subscribing to the feed! Any help would be appreciated with this issue…

application.html.erb

page head <%= auto_discovery_link_tag(:atom, feed_path, { :title => “My ATOM Feed” }) %>

page body <%= image_tag(“feed.png”, {:alt => ‘Atom feed’, :class=>”feed”}) %>Subscribe

routes.rb

match '/feed' => 'articles#feed', :as => :feed, :defaults => { :format => 'atom' }

articles_controller

class ArticlesController < ApplicationController

before_filter :authenticate_user!, :except => [:index, :show]

# GET /articles
# GET /articles.xml
# display articles on the home page

def index
@articles = Article.published.page(params[:page]).per(6).ordered

respond_to do |format|
  format.html # index.html.erb
  format.xml  { render :xml => @articles }
  format.atom { render :atom => @articles }
end
end


# GET /articles/1
# GET /articles/1.xml
def show
@article = Article.find(params[:id])
@comment = Comment.new(:article=>@article)

respond_to do |format|
  format.html # show.html.erb
  format.xml  { render :xml => @article }
end
end



# GET /articles/new
# GET /articles/new.xml
def new
@article = Article.new

respond_to do |format|
  format.html # new.html.erb
  format.xml  { render :xml => @article }
end
end


# GET /articles/1/edit
def edit
@article = Article.find(params[:id])
authorize! :edit, @article
end

# POST /articles
# POST /articles.xml
def create
  #authorize! :create, @article
  @article = Article.new(params[:article])
  @article.user_id = current_user.id

respond_to do |format|
  if @article.save
    format.html { redirect_to(@article, :notice => 'Worry was successfully created.') }
    format.xml  { render :xml => @article, :status => :created, :location => @article }
  else
    format.html { render :action => "new" }
    format.xml  { render :xml => @article.errors, :status => :unprocessable_entity }
  end
end
end

# PUT /articles/1
# PUT /articles/1.xml
def update
  @article = Article.find(params[:id])
authorize! :update, @article
respond_to do |format|
  if @article.update_attributes(params[:article])
    format.html { redirect_to(@article, :notice => 'Worry was successfully updated.') }
    format.xml  { head :ok }
  else
    format.html { render :action => "edit" }
    format.xml  { render :xml => @article.errors, :status => :unprocessable_entity }
  end
end
end


# DELETE /articles/1
# DELETE /articles/1.xml
def destroy
@article = Article.find(params[:id])
authorize! :destroy, @article
@article.destroy

respond_to do |format|
  format.html { redirect_to(articles_url) }
  format.xml  { head :ok }
end
end

end

views/articles/feed.atom.builder

atom_feed :language => 'en-US' do |feed|
feed.title "mysite.com"
feed.updated(@articles.blank? ? Time.now : @articles.first.created_at)

@articles.each do |article|
feed.entry article, :published => article.accepted do |entry|
  entry.title article.title

  entry.author do |author|
    author.name article.user.fullname
  end
end
end
end

Answer 1

Update this line in your articles_controller:

before_filter :authenticate_user!, :except => [:index, :show]

… with:

before_filter :authenticate_user!, :except => [:index, :show, :feed]

This will prevent the request for authentication.