Ruby on Rails

Overrides to link_to should go better in the ApplicationHelper. Try em there.

Vish

On 10/1/06, Vinod Krishnan < vinod....@gmail.com> wrote:

Hi,
I am trying to override link_to in the ApplicationController as follows:

include ActionView::Helpers::UrlHelper
alias_method (:link_to_original, :link_to) unless
method_defined?(:link_to_original)

def link_to(name, options = {}, html_options = nil,
               *parameters_for_method_reference)
  puts "In my link_to"
  link_to_original(name, options, html_options,
*parameters_for_method_reference)
end

I get the following error:

You have a nil object when you didn't expect it!
The error occured while evaluating nil.url_for

Extracted source (around line #7):

4:     <div class="Logo">
5:       <%= link_to(image_tag("logo4.gif",
6:                             :alt => "logo",
7:                             :border => 0),
8:                   {:controller => "main",
9:                    :action => "index" })
10:        %>

C:/INSTAN~1/ruby/lib/ruby/gems/1.8/gems/actionpack1.12.1/lib/action_view/helpers/url_helper.rb:27:in
`send'
C:/INSTAN~1/ruby/lib/ruby/gems/1.8/gems/actionpack1.12.1/lib/action_view/helpers/url_helper.rb:27:in
`url_for'
C:/INSTAN~1/ruby/lib/ruby/gems/1.8/gems/actionpack1.12.1/lib/action_view/helpers/url_helper.rb:27:in
`send'
C:/INSTAN~1/ruby/lib/ruby/gems/1.8/gems/actionpack1.12.1/lib/action_view/helpers/url_helper.rb:27:in
`url_for'
C:/INSTAN~1/ruby/lib/ruby/gems/1.8/gems/actionpack1.12.1/lib/action_view/helpers/url_helper.rb:59:in
`link_to'
#{RAILS_ROOT}/app/views//layouts/_header.rhtml:7:in `_run_rhtml_layouts__header'
#{RAILS_ROOT}/app/views/layouts/main_layout.rhtml:20:in
`_run_rhtml_layouts_main_layout'


Please help.

-Vinod