app/views/articles/_form.html.erb
<%= form_for article, :html => {:class => "form-horizontal", :multipart => true} do |f| %>
<fieldset>
<div class="control-group">
<%= f.label :title, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :title, :class =>"input-xlarge" %>
</div>
</div>
<div class="control-group">
<%= f.label :slug, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :slug, :class =>"input-xlarge" %>
</div>
</div>
<div class="control-group">
<%= f.label :content, :class => 'control-label' %>
<div class="controls">
<%= f.text_area :content, :class =>"input-xlarge" %>
</div>
</div>
<div class="control-group">
<%= f.label :tag_attributes, "Tags(seperated by comma)", :class => 'control-label' %>
<div class="controls">
<%= text_area_tag("article[tag_attributes]") %>
</div>
</div>
<div class="control-group">
<%= label_tag 'article_attachments_', "File:", :class => 'control-label' %>
<div class="controls">
<%= file_field_tag("article[attachments][]") %>
</div>
</div>
<div class="form-actions">
<%= f.submit "Save", :class => "btn" %>
<%= f.submit "Save and Publish", :class => "btn btn-primary" %>
</div>
</fieldset>
<% end %>