ruby on rails 3 - How to redirect to a permalink that is stored as a column in my model -

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I'm making a place where contributors can post content on my site. I want to create a link where another user You can click and take the user to the relevant Contributor's website. Permalink for each contributor's website is a column in my Contributor Model

Anything that I tried adds yet to the contributor's permalink at the end of the current URL. That is, instead of redirecting to www.contributorcite.com, www.mysite.com/xxx/www.contributorsite.com

please help

(Maybe, the link should be created in the controller instead of the model, or just enter http: // for the information entered by the user): < / P> 

  & lt;% link = "http: //" + user.permalink% & gt; & Lt;% = link_to "User Website", Link% & gt;

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