Question

I’m building an app where users can submit a URL, and I want to find out how many of a specific URL have been submitted on the site in total, and then arrange them in a list ordered by the number of times they’ve been submitted.

Any ideas? Using Rails 3.0.6

Answer 1

If you’re allowing duplicate urls, and assuming you have a Url class with a urlcolumn

Url.group(:url).select("urls.*,count(*) as num").order("num desc")

If you have unique urls and a join table between urls and users (which is what you should be doing):

Url.joins(:users).group("urls.id").select("urls.*, count(*) as num").order("num desc")