Question

We are trying to build a SQL query builder that would allow users to make queries using visual aid .
We have got the front end all worked up with the user being able to select tables add condition etc . However our backend is a mess as we are trying to make these queries as string taking the conditions from the user , and then making appropriate SQL strings in our models .
This would eventually become very buggy and difficult to maintain as we add support for more and more complex queries . Is anybody aware of a sql builder plugin that we can use , or a better way to approach this .

Answer 1

Check out arel. A fork of this project is now used in Rails 3 to help with ORM agnosticism.