Implementing twitter-like hashtag on rails

Question

I\'m want to implement twitter-like hashtag on my app.

Let\'s say I have user input to a text area \"I\'m coming to #london from #paris\" then I want to build tag cloud

Answer 1

For late-comers…

I have written a simple gem for precisely for this:
https://github.com/ralovely/simple_hashtag

Give feedback or contribute if you feel like it.