Search month

HI , help fetch only the same one

controller:

def mes
      @data = Date.today
        if params[:mes]
        @ordems = Ordem.find(:all,:limit => 10, :conditions => ['MONTH
(data)= ?', params[:mes]])

view:

<p>Selecione o mes</p>

<% form_tag mes_path, :method =>'get' do %>
        <p>
<%= select_month(@data, :prefix => "mes")%>
<%= submit_tag "Busca", :data => nil %>
        </p>
<% end %>