Ruby on Rails: How to limit the results of sorting active record results

Question

I have the following code, which sorts Users by number of posts. How can I limit this to the top 5 results?

<%= @top5 = User.all.sort{|a,b| a.questions.where(ques_num: 2).count <=> b.questions.where(ques_num: 2).count}.reverse %>

Answer 1

you can simply add .first(5) or .last(5).reverse

<%= @top5 = User.all.sort{|a,b| a.questions.where(ques_num: 2).count <=> b.questions.where(ques_num: 2).count}.reverse.first(5) %>

or

<%= @top5 = User.all.sort{|a,b| a.questions.where(ques_num: 2).count <=> b.questions.where(ques_num: 2).count}.last(5).reverse %>