Additional filter options in our item index pages. ruby/rails web application

In our rails application we enable users to submit multiple types of feedback in a project. The feedback items can be assigned to someone involved in the project. In the index pages for each type of feedback item we have various filters. We have a filter for specifically for filtering by items that are assigned to me and unassigned. We would like to augment this filter to include filtering items by specific users or categories of users. Your tasks would be as follows: - In the assigned filter for each of the three sections add the options to filter by the users/categories that exist in the project. - upon choosing a user or category the list below should reflect only the items that are assigned to that user/category. Please include what your approach would be to implementing this addition. Skills: You must be familiar with ruby and rails development. Must be familiar with either cucumber and/or rspec testing frameworks as we require tests to be created to prove that the features work. This is a small project that will help us get this needed functionality into our web application. This project is also a way for us to build a relationship for future work with the accepted candidate. This will get you familiar with our web application and open up the way for future ongoing work with us. Background on us: We are a start up that's building tools for information organization, feedback, and collaboration in the enterprise. Technical details: We're using rails 3.2 and jquery. Couchdb is the database that we're using. Upon acceptance of the project we require an IP agreement be electronically signed.