- Inheritance
This helper to exposes a method for caching of view fragments. See ActionController::Caching::Fragments for usage instructions.
Methods
Instance
| Visibility | Signature |
|---|---|
| public | cache (name = {}, options = nil, &block) |
Instance Method Detail
cache(name = {}, options = nil, &block)
A method for caching fragments of a view rather than an entire action or page. This technique is useful caching pieces like menus, lists of news topics, static HTML fragments, and so on. This method takes a block that contains the content you wish to cache. See ActionController::Caching::Fragments for more information.
Examples
If you wanted to cache a navigation menu, you could do the following.
<% cache do %>
<%= render :partial => "menu" %>
<% end %>
You can also cache static content…
<% cache do %>
<p>Hello users! Welcome to our website!</p>
<% end %>
…and static content mixed with RHTML content.
<% cache do %>
Topics:
<%= render :partial => "topics", :collection => @topic_list %>
<i>Topics listed alphabetically</i>
<% end %>