#269 Template Inheritance

Jun 06, 2011 | 8 minutes | Views, Rails 3.1

In Rails 3.1 the controller inheritance also applies to the view layer. Here I show how to add an application template which is shared by all views, and a lookup path for overriding templates based on the subdomain.

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          application_controller.rb
        
before_filter :subdomain_view_path

private

def subdomain_view_path
  prepend_view_path "app/views/#{request.subdomain}_subdomain" if request.subdomain.present?
end

          views/layouts/application.html.erb
        
<%= render "side" %>

          views/application/_side.html.erb
        
<strong>Pages</strong>
<ul>
  <li><%= link_to "Home", root_path %></li>
  <li><%= link_to "Products", products_path %></li>
</ul>

          views/admin/base/_side.html.erb
        
<strong>Pages</strong>
<ul>
  <li><%= link_to "Home", root_path %></li>
  <li><%= link_to "Products", products_path %></li>
  <li><%= link_to "Manage Products", admin_products_path %></li>
  <li><%= link_to "Manage Categories", admin_categories_path %></li>
</ul>

          views/mobile_subdomain/products/index.html.erb
        
<h1>Mobile Version</h1>

          edit.html.erb
        
<%= controller.view_paths %>