Search helper

search.rb

class Search
  
  class NotUrlHelperPresent < Exception; end

  attr_writer :url_helper

  def url(params)
    raise NotUrlHelperPresent unless @url_helper
    
    @url_helper.call(params)
  end
end

# Usage example:

search = Search.new :brokers
seearch.url_helper = method(:brokers_path)

# and in the template:
<%= search.url(:search => search.to_hash) %>