Trims options out of CCK select boxes.
The 2.3 version for D6 works with the following field types (all select widgets):
Text
Number (integer, float, decimal)
Nodereference
Userreference
Rolereference
Content Taxonomy
This module can be used for a few different reasons:
1. You are using a reference field such as node_reference, user_reference, or role_reference and have options that you'd like to trim out of the list, but don't want to write a custom module to form alter out those options or use the views feature for populating the list.
2. You want to dynamically trim options out of a select list based on the option chosen in a parent select box, achieving a dynamic dependent dropdown effect. The difference in how this works compared to other efforts is that the select box to be trimmed must start out with all possible options, then through an admin interface you can select how these will be dynamically trimmed out based on the selected option of a different select box. With javascript disabled all options will always show but nodeapi validation will still kick in so that only valid options will be submitted.
The 2.0 branch adds a couple other use cases.