Implementing Rule Engine in Rails Application

Question

I want to implement Rule Engine on my Rails 3.2 application which has a complex pricing logic,I want to transform the conditions in pricing logic to rules, and use them.I am creating an entirely new application for this purpose.

I googled alot in this regard and found rules_engine, ruleby, treetop, but the documentation they provided was not just sufficient, I struggled a lot in deciding the best one suitable for my requirement.

What's the best approach to start development on rule engine?

Answer 1

I've been looking for a prolog-like system to implement rules myself. Here's what I found so far.

This library contains a rule engine written in Ruby. It's based on the Rete algorithm and uses a DSL to express rules in a readable way.

https://github.com/ulfurinn/wongi-engine