如何在Rails 4应用程序中创建CMS页面路由？

Question

I have a CMS engine that I created and I've linked it into my main site and now I'm trying to get it to route to /about instead of /1 , which maps to the CMS Engines pages controllers show action.

example pages setup
id | name    | title      | body
1  | about   | About Us   | this is the about page
2  | contact | Contact Us | this is the contact page

It will successfully route to /1 or /2

Here is my routes.rb of the main application, which loads the cms engine

  mount Cms::Engine, :at => '/cms', :as =>'cms'
  mount Blog::Engine, :at => '/blog', :as => 'blog'

  # route to cms pages
  match ":id", :to => 'cms/pages#show', :via => [:get, :post]

Here is the show action of the CMS pages controller

# GET /pages/1  or GET /pages/name
def show
  begin
     @page = Page.find_by_name(params[:id]) 
     @page ||= Page.find(params[:id]) 
  rescue
    redirect_to "/404.html"
  end
end

No matter what I try I can't get it to route the pages to /name so /about or /contact , instead I get an error that reads: Couldn't find Cms::Page with id=about or Couldn't find Cms::Page with id=contact , but if I go to /1 or /2 , then the page is rendered.

My rake routes are:

Prefix Verb     URI Pattern    Controller#Action
 cms          /cms           Cms::Engine
blog          /blog          Blog::Engine
     GET|POST /:id(.:format) cms/pages#show

Routes for Cms::Engine:
    pages GET    /pages(.:format)          cms/pages#index
          POST   /pages(.:format)          cms/pages#create
 new_page GET    /pages/new(.:format)      cms/pages#new
edit_page GET    /pages/:id/edit(.:format) cms/pages#edit
     page GET    /pages/:id(.:format)      cms/pages#show
          PATCH  /pages/:id(.:format)      cms/pages#update
          PUT    /pages/:id(.:format)      cms/pages#update
          DELETE /pages/:id(.:format)      cms/pages#destroy
     root GET    /                         cms/login#index

Routes for Blog::Engine:
root GET / blog/index#index

Answer 1

OK, so I figured this out, basically show uses the id by default, so I simply created a display action and now it works.

def display
  @page = Page.find_by_name(params[:id])
  render 'public/404.html', :status => 404 if @page.nil?
end