10 Largest Collections in a MongoDB Database w/ Mongoid

mongoid | mongodb

Mongoid.default_session.collections.map do |c|
  s = Mongoid.default_session.command(collstats: c.name)
  [c.name, s["size"] + s["totalIndexSize"] ]
end.sort_by { |n, s| -s }.take(10).each do |n, s|
  puts "#{n}: #{s}"
end; nil