# Dynamic models **URL:** \ **Category:** Rails\ **Created:** [April 10, 2007, 8:14pm UTC](https://www.ruby-forum.com/t/dynamic-models/91603 "2007-04-10T20:14:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![linoj](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/e36b37/32.png) [@linoj](https://www.ruby-forum.com/u/linoj)\ **Post date:** [April 10, 2007, 8:14pm UTC](https://www.ruby-forum.com/t/dynamic-models/91603/1 "2007-04-10T20:14:55Z")
Anyone know of a plugin that lets you create dynamic models? eg an app with multiple projects and each project manager can add their own fields to the project profile ---
**Author:** ![linoj](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/e36b37/32.png) [@linoj](https://www.ruby-forum.com/u/linoj)\ **Post date:** [April 10, 2007, 8:35pm UTC](https://www.ruby-forum.com/t/dynamic-models/91603/2 "2007-04-10T20:35:57Z")
Having made a hideous extension for ActiveRecord called DynamicActiveRecord for project a while back, I can say with confidence that you are better off creating a system with seperate models: Project, Field, Option etc. This creates a far more manageable application and will help you to avoid any 12 hour straight core application re-writes when the client’s system collapses under the weight of all that magic… Having said that, perhaps some more intelligent developers have achieved this in a nice way. However, I would still argue that simple and neat is the best way to go. Steve ---
**Author:** ![linoj](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/e36b37/32.png) [@linoj](https://www.ruby-forum.com/u/linoj)\ **Post date:** [April 11, 2007, 6:16pm UTC](https://www.ruby-forum.com/t/dynamic-models/91603/3 "2007-04-11T18:16:20Z")
I can see how a “DynamicActiveRecord” extension could get hairy and overcomplicated. I’d be happy with just some kind of plugin to manage a separate dynamic model like you indicated that lets me extend a AR model with a handful of extra fields.