How render HTML Link from String with Rails?

Question

I want to convert the URL string into an HTML link element (<a href="#"></a>) (like Facebook make with his URLs in the text by example)

I tried this solution Convert links from a string to clickable links using Ruby/Rails but I just get some HTML link in plain text...

Example :

I have this

string = "blabla http//www.google.com blabla
lorem ipsum lorem ipsum"

And I would this, not in plain text but as HTML element

<p>blabla</p> 
<a href="http//www.google.com">http//www.google.com</a> 
<p>blabla</p>
<p>lorem ipsum lorem ipsum</p>

Thank you for your help :)

You might want to have a look at the simple_format view helper method and the rails_autolinks gem that was once part of Rails itself. — spickermann
– spickermann, Commented Jan 14, 2021 at 11:51
Maybe this will help you: URI.extract(string) apidock.com/ruby/v2_5_5/URI/extract/class — Luskmo
– Luskmo, Commented Jan 14, 2021 at 12:51

CR7 · Accepted Answer · 2021-01-14 13:38:57Z

0

the plain text can be converted to html by called html_safe method on string. Like '<a href="http//www.google.com">http//www.google.com</a>'.html_safe

answered Jan 14, 2021 at 13:38

CR7

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1 Comment

LinkOfCode Over a year ago

Thank you I don't know why it's not working from controller but it's working from view. But I have another question how prevent javascript code like <script>alert('hello')</script> How just passing http url as html_safe ?

iCodeSometime · Accepted Answer · 2021-01-14 17:24:56Z

I would split the input into "words", compare each word with a regex for a url, and if it matches, wrap it in a link element.

In this answer I'll just use a simple regex. We'll consider anything starting with http:// or https:// to be a URL. You can use something more advanced if you like.

string = "blabla https://www.google.com blabla lorem ipsum lorem ipsum"

string = string.split.map do |word|
  if /https?:\/\/.*/.match word
    next "<a href=\"#{word}\">#{word}</a>"
  else
   next word
  end
end.join(' ')

puts string #=> blabla <a href="https://www.google.com">https://www.google.com</a> blabla lorem ipsum lorem ipsum

Note that this doesn't actually work with the original string in your answer, because it's not a valid url (it's missing the colon).

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