Question

I want to check user submitted urls against a regular expression, if the url doesn’t begin with http:// or https://, then I would like to prepend http:// to the beginning then save it.

I have some code but I don’t know how to incorporate it into my app. Would this code work? And would I incorporate it into my application to check urls before allowing users to create links.

I’ve attached the code and files below. Thanks

def add_http(link)
  if (link =~ /http[s]?:\/\//)
    link
  else
    "http://#{link}"
  end
end

Controller https://gist.github.com/1279576

_form https://gist.github.com/1279580

Model https://gist.github.com/1279582

Answer 1

Fixed the code a bit. This works

  before_save do |link|
      link.url = "http://#{url}" unless link.url=~/^https?:\/\//
  end 

Thanks for the guidance @bandito & @rubyprince