Pretty URL in Rails 4 - Build a Simple Application

Install gem stringex

Add following lines to Gemfile

gem 'stringex', '~> 2.5.2'
gem 'responders'

Run command

# bundle install

Rails application have model Post with id:integer and title:string

class Post < ActiveRecord::Base
  acts_as_url :title, url_attribute: :slug
 
  def to_param
    "#{id}-#{slug}"
  end
end

With config above, example: I have a post with id = 1 and title = "This is an example" then link to post look like

http://localhost:3000/posts/1-this-is-an-example

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