How do you format a url for Google Charts?

I'm trying to convert a url string into a label for a Google Chart.

My question is this: my input is something like www.mysite.com/link and it needs to be encoded so it can itself be embedded into the Google charts URL.

Before: www.mysite.com/link/test

After: www.mysite.com%2Flink%2Ftest

How can I convert a regular string into a UTF-8 URL-encoded stri开发者_运维技巧ng in Rails?

There's also CGI.escape from the standard library:

>> CGI.escape('www.mysite.com/link/test')
=> "www.mysite.com%2Flink%2Ftest"

Rails 3.0 is based on Rack, Rack provides a Rack::Utils.escape method.

s = "www.mysite.com/link/test"
# => "www.mysite.com/link/test
Rack::Utils.escape(s)
# => "www.mysite.com%2Flink%2Ftest"

#saved in ./lib/string.rb
class String
  def encode_this
      self.gsub(' ', '%20').gsub('/', '%2F') #etc...
  end
end

This would be universal and customizable for your needs.

"www.mysite.com/link/test".encode_this
=> "www.mysite.com%2Flink%2Ftest"