Is there a way to detect user agent in Rails 3.1 [duplicate]

Question

Possible Duplicate:
Auto detect mobile browser (via user-agent?)
Rails 3: HTTP_USER_AGENT

Is there a way to detect the user agent from a current visitor? I'm currently working on a project to display video files. But for the ipad, iphone / samsung galaxy tab / internet explorer / firefox. I need to display video's is there a solid way to check which browser is visiting my rails app?

Thanks guys!

Answer 1

Yep, just use this

request.env["HTTP_USER_AGENT"] #or request.user_agent 

Answer 2

What about using a simple gem?

If I remember well, I used this one last time.

gem install user-agent

The same one on GitHub

I think that this is a good way to do it...