Microformats Helper Cheat Sheet

hAtom

<% render_hfeed(options?) do ... end %> <% render_hentry(id, options?) do ... end %>: Render ol with class hfeed, or li with the class hentry and id. Options passed to HTML element.
<%= hentry_title(title?, options?) { ... } %> <%= hentry_content(content?, options?) { ... } %>: Returns header with class entry-title, or element with class entry-content. Content pass as argument or returned from block, options passed to wrapping element. Use :level to specify header level (default 2), :tag to specify content element (default p).

Other

<%= hcard(values) %>

Values:

:fn: Formal name
:given-name: Given name (alternative to :fn)
:family-name: Family name (alternative to :fn)
:url: URL of person/entity (results in link)
:photo: URL of photo, or hash of options for img tag
:html: Options to pass to wrapper element

<%= Time.microformat(type, format?) { ... } %>

Formats time using the date/time pattern, returns abbr element. First argument is date/time type (e.g. :published). Human formatted: using second argument (see strftime), result of block, or self.to_s.

Example

<% render_hfeed do
  posts.each do |post|
    render_hentry "post-#{post.id}" do %>
      <%= hentry_title post.title %>
      <%= hentry_content post.content %>
      <p>Published on <%= post.created_on.microformat :published %> by
        <%= hcard :fn=>post.author, :url=>post.author_url, :class=>"author" %>
      </p><%
    end
  end
end %>