Permalinks in Rails 3
How To Easily Create Pretty URLs
After reading a bunch of methods for creating nice URLs in Rails:
- http://henrik.nyh.se/2009/09/canonizing-pseudo-slugs-in-rails
- http://emilientaque.fr/2010/01/dealing-with-permalinks-in-rails/
- http://railscasts.com/episodes/63-model-name-in-url
- http://railscasts.com/episodes/117-semi-static-pages
- http://www.simonecarletti.com/blog/2009/08/user-profile-permalinks-with-ruby-on-rails-and-authlogic/
- http://matharvard.ca/2009/dec/18/permalinks-on-rails
The following is a combination of Emilien Taque’s technique and Henrik’s method. Note that url_for’s :overwrite_params was deprecated in 2.3.6.
# app/models/page.rb
class Page < ActiveRecord::Base
before_save do |page|
page.permalink ||= page.title.parameterize
end
def to_param
[id, title.parameterize].join("-")
end
end
# app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
protect_from_forgery
protected
def redirect_if_moved(record, param_key = :id)
redirect_to record, :status => 301 if record.to_param != params[param_key]
end
end
# app/controllers/pages_controller.rb
class PagesController < ApplicationController
respond_to :html, :xml
# methods ...
def show
@page = Page.find(params[:id])
redirect_if_moved @page and return
respond_with @page
end
# methods ...
end
