class Wco::InvoicesController

def update
  @invoice = Wco::Invoice.find params[:id]
  authorize! :update, @invoice
  if @invoice.update_attributes params[:invoice].permit!
    flash[:notice] = 'Success'
    redirect_to :action => 'index'
  else
    flash[:alert] = "Cannot update invoice: #{@invoice.errors.messages}"
  end
  redirect_to :action => 'index'
end