jQuery (or any web tool) Nested Expression Builder

Question

I would like to add a feature to a web app I am developing to allow the user to create rules with an expression builder. Such as the one used in Magento (picture in link bel

Answer 1

No mainstream tool out there for PHP... except the ones we make for ourselves :)...Its easy to implement a decent one... Just need to decide where you will store the rules... I had built one for myself with the Rule definition stored in XML ... Then updated it a few months back to store that in JSON .... You write "smarty like" templates for the output you want... 2 cases where I used this was for an Active Record implementation as well as PDF generation ... the move to JSON was because most of the newer usage scenarios were related to throwing out javascript for the pages to consume...