Problem w/ routing constraints

Hello,
I am having a strange problem w/ rails 3 routing constraints. I
have this custom class w/ a self.matches? method as such:


class PersonalizedDomain

  def self.matches?(request)
    Rails.logger.info("self.matches? NEVER CALLED!!!!")
  end

and in routes I use the custom Class like this:

require 'personalized_domain' #resides in lib

  constraints(PersonalizedDomain) do

     Rails.logger.info("constraints block ENTERED")
      root :to => "projects#show"
  end

and in application.rb, I load my lib paths:

config.autoload_paths += %W(#{config.root}/lib)

The self.matches?(request) method never gets called and I don’t
understand why?

SOLUTION: Here’s an update - I did figure out why my custom constraint
wasn’t working correctly and here’s the changes I made:

In PersonalizedDomain I changed the self.matches? method from a class
method to an instance method as such:

# lib/personalized_domain.rb
class PersonalizedDomain
  def matches?(request)
    case request.host
    when "www.#{APP_CONFIG[:domain]}", "#{APP_CONFIG[:domain]}", nil
      false
    else
      true
    end
  end
end

and in routes I did this:

constraints(PersonalizedDomain.new) do
      resources :posts
      resources :personalized
  end

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