Most of my web application have some kind of hierarchical structure in their models. It gives my users the ability to categorize their data in a pleasant way. The only problem is that its hard to create a user interface for editing these hierarchies. I made a prototype which adds nested set support to the symfony (1.2) generator. This extension allows for full drag&drop nested set support! See for yourself by clicking the image:Most of my web application have some kind of hi