I have a form where users enters their homepage-url. The problem is
that some users don't include the "http://" part of the url.
So, when I use
<%= link_to "external site", @user.homepage_url %>
and @user.homepage_url is "www.homepage.com", Rails maps this to a
internal site (which, of course, doesn't exists).
Is there a easy way to fix this, or do i need a method that checks
for, and includes, the "http://" part of a url?