how to handle render :collection => @foos in rails when @foos is an empty collection

_foo.html.erb

<!-- app/views/foos/_foo.html.erb -->
<tr>
	<td>
		<%= foo.name %>
	</td>
	<td>
		<%= foo.color %>
	</td>
</tr>

_foos.html.erb

<!-- app/views/foos/_foos.html.erb -->
<table>
	<thead>
		<tr>
			<th>Name</th>
			<th>Color</th>
		</tr>
	</thead>
	<tbody>
		<%= render @foos %>
	</tbody>
</table>

_foos_empty.html.erb

<!-- app/views/foos/_foos_empty.html.erb -->
<p>No foos yet... <%= link_to "create some!", new_foo_path %></p>

foos_helper.rb

# app/helpers/foos_helper.rb
module FoosHelper
	def render_foos
		if @foos.blank?
			render :partial => "foos_empty"
		else
			render :partial => "foos"
		end
	end
end

index.html.erb

<!-- app/views/foos/index.html.erb -->
<%= render_foos %>