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These helpers will let you sort large datasets over many pages (using will_paginate or kaminari) without losing state.


Add this line to your application's Gemfile:

gem 'sorted-activerecord'

And then execute:

$ bundle

Or install it yourself as:

$ gem install sorted-activerecord


The sorted scope takes two optional arguments, sort and order, they both conform to the AR query interface except that if you provide a string to the sort argument it expects a Sorted::URIQuery encoded string:

@users = User.sorted(sort: 'created_asc!orders_count_asc', order: 'orders_count ASC, created_at DESC')

See for a view helper to generate the sort string or roll your own.

A resorted method is also available and works the same way as the reorder method in Rails. It forces the order to be the one passed in:

@users = User.order(:id).sorted(order: 'name DESC').resorted(sort: params[:sort], order: 'email ASC')

If you want to prevent people creating 500s by messing with the sort url string you can use a white list:

@users = User.sorted(sort: 'created_asc!explode_me_asc', whitelist: %w(created_at))


  1. Fork it ([my-github-username]/sorted-activerecord/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request