tablesorter

https://github.com/lukeroberts1990/tablesorter

This gem provides helpers for building sortable column headings in a table with links. It also monkey patches (for better or for worse) ActiveRecord and provides a more succinct api for sorting based on the table column links. It is the intention to expand this API to provide default and secondary sorts. It's very basic but I have built this functionality enough times to warrant gemification Features via pull requests welcome