trustieforge/app/views/bids/_app_link.html.erb

<% for attachment in attachments %>
    <%= link_to_attachment attachment, :class => 'icon icon-attachment', :download => true -%>
    <% if attachment.is_text? %>
        <%= link_to image_tag('magnifier.png'),
                    :controller => 'attachments', :action => 'show',
                    :id => attachment, :filename => attachment.filename %>
    <% end %>
<% end -%>