I recently launched the new Rails-based version of Doppler Value Investing (http://www.dopplervalueinvesting.com). It profiles over 4000 individual stocks in terms of free cash flow and net liquid assets.
As you can see at http://dopplervalueinvesting.com/stocksview, I know how to extract data from a table in a Postgres database and display it to users.
However, I’m looking for a way to provide a search form that allows users to create their own custom search of the stock database table and see their results. Where can I find a good example of this?