You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: active_record.rb
    path of file: ./repos/will_paginate/lib/will_paginate
    
    the code of the file until where you have to start completion: require 'will_paginat
    
      def limit(num)
        rel = super
        if rel.current_page
          rel.offset rel.current_page.to_offset(rel.limit_value).to_i
        else
          rel
        end