Its a simple plugin for providing facebook style url scraper. Using url scraper you can convert any simple textarea into a smart textarea which auto detects url entered by users and fetches the content of the webpage and displays it on the page. This gem is built on top of gem 'opengraph' by Michael Bleigh. This gem uses the opengraph tags as well as uses meta, title and img tags (in case if opengraph tags are not present) to fetch information about a page.
Add to your gemfile
Paste this line in your application.js file
//= require jquery.scraper
Paste this line in your application.css file
*= require scraper
Add following to your routes
match '/scrape_url' => "UrlScraper#scrape", :via => :post
Using the plugin in a view
Create a text area or text field with id=“scrape_url” and that's it.
require 'url_scraper' movie = .('http://www.rottentomatoes.com/m/1217700-kick_ass/') movie.title # => 'Kick-Ass' movie.movie? # => true movie.image # => 'http://images.rottentomatoes.com/images/movie/custom/00/1217700.jpg'
If you try to fetch Open Graph information for a URL that doesn't have any, the
fetch method will return values for title tag and other meta tags specified on the page.
The UrlScraper::Object that is returned is just a Hash with accessors built into it, so you can examine what properties you've retrieved like so:
movie.keys # => ['type','image','title','url']
1) Showing video on the page.
2) Giving developers an easy way to integrate with rails forms.