Rails - Aug 2009 - Problem with array

I have two action in the same controller:

def list
 if logged_in?
    sort = case params[''sort'']
           when "title"  then "title"
           when "a"   then "a"
           when "b" then "b"
           when "c" then "c"
           when "title_reverse"  then "title DESC"
           when "a_reverse"   then "a DESC"
           when "b_reverse" then "b DESC"
           when "c_reverse" then "c DESC"
           end

    if params[:query]==nil
      conditions = ["login LIKE ?",
"%#{current_user.login}%"]
    else
      conditions = ["login LIKE ? and title LIKE ?",
"%#{current_user.login}%","%#{params[:query]}%"]
    end
    @total = Suma.count(:conditions => conditions)
    @sumas = Suma.paginate :all, :order => sort, :conditions =>
conditions, :per_page => @total+1, :page => 1
    if request.xml_http_request?
      render :partial => "items_list", :layout => false
    end
else
       redirect_back_or_default(''/'')
    end
  end

And I have other action :

def xls
#
    # Creamos un nuevo archivo Excel en disco
#
    workbook = Excel.new("#{RAILS_ROOT}/public/works.xls")
#
    # Añadimos hoja EMPRESAS
#
    works = workbook.add_worksheet("Works")
#
    # Fila de cabecera
#
    @cabecera = %w(title a b c)
#
    columna = 0
#
    @cabecera.each do |cab|
#
      works.write(0,columna,cab)
#
      columna += 1
#
    end
#
    # Una fila para cada empresa
#
    @sumas = Suma.find(:all, :conditions => ["login
?",current_user.login])
    fila = 1
#
    for e in @sumas
#
      # Añado la fila con los datos en sus respectivas columnas
#
      works.write(fila,0,e.title)
#
      works.write(fila,1,e.a)
#
      works.write(fila,2,e.b)
#
      works.write(fila,3,e.c)

      # Pasamos a la siguiente empresa en una nueva fila
#
      fila += 1
#
    end

I like when the user puss xls import the @sumas select in the list not
all. Well pass list: @sumas to xls action!!
Thank you!!
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