Is there a better way to do with_options in Rails 3 routes?

Here are my Rails 2 routes:

map.with_options :controller => 'foo', :conditions => { :method => :post } do |foo|
  foo.one 'one', :action => 'one'
  foo.two 'two', :action => 'two'

  foo.with_options :special_flag => 'true', :path_prefix => 'special_prefix',
    :conditions => { :开发者_运维百科method => :get } do |bar|
    bar.three '',        :action => 'for_blank'
    bar.four  'another', :action => 'for_another'
  end
end

How do I convert this sort of thing to Rails 3? Just keep using with_options in the same way? It becomes wordier in some cases because instead of doing

match '' => 'foo#for_blank'

I'm doing

match '', :action => 'for_blank'

Yeah, with_options still works in Rails 3. Try this out:

map.with_options :controller => 'foo', :via => :post do
  match 'one', :action => 'one' #automatically generates one_* helpers
  match 'two', :action => 'two' #automatically generates two_* helpers

  foo.with_options :special_flag => 'true', :path => 'special_prefix', :via => :get do
    match '',        :action => 'for_blank'
    match  'another', :action => 'for_another', :as => "four" # as will change the helper methods names
  end
end

The :via option replaces your ugly conditions hash with a much nicer syntax.

Like this:

#JSON API
defaults :format => 'json' do
    get "log_out" => "sessions#destroy", :as => "log_out" 
    get "log_in"  => "sessions#new",     :as => "log_in" 
    get "sign_up" => "users#new",        :as => "sign_up" 

    resources :users, :sessions
end

Try to stick to the methods the routes provide. They are very powerful in Rails 3 and should provide everything you need. See http://guides.rubyonrails.org/routing.html for more details