Question

I have an article model that has a title, body, author and category fields. All of the articles are grouped by their category which means i have 6 pages like “news”, “bulletin” “sport” etc.

How could I link to an articles category page from its show page?

articlesController.rb

def news
      @articles = Article.paginate(page: params[:page], per_page: 7).where(category: "News")
    end

rake routes & routes.rb

    news        /news(.:format)                                   articles#new

match '/news', controller: "articles", action: "news"

link

<b><%= link_to @article.category, @article.category_path?? %></b>

Thanks in advance!

Answer 1

With rails 2

#routes.rb
map.news       'news',     :controller => "Articles", :action => "news"
map.bulletin   'bulletin', :controller => "Articles", :action => "bulletin"

This will give your news_path or bulletin_path. In a particular function, you can load the article_category as well as all its articles.

Make a helper method category_path like below

def category_path(article)
    return eval("#{article.category.downcase}_path")
end

and links like

<%= link_to @article.category, category_path(@article) %>