Rails gem pagination helper that works off of scopes (named) to facilitate data retrieval and display.
Use the bundler gem (sudo gem install bundler) Add the following to your Gemfile gem "pagem", :git => "git://github.com/mdsol/pagem.git"
rvm use ruby-1.9.3-p125 bundle install bundle exec rspec spec/*
=== Controller
In your controller, create an instance of the helper. Pass your scope and the params hash as arguments.
@pager = Pagem.new(@study.subjects, params)
Retrieve the paged scope from the Pagem instance.
@subjects = @pager.paged_scope
=== View
In your view, use the paged scope to display the data as you would for any data set.
Then, render the pagination controls at the bottom.
<%= @pager %>
The pagem class can work with remote forms (AJAX) as well.
<%= @pager.render(:is_remote => true) %>