I have a few OG Groups and now I want to limit the taxonomy term selection for each group. For the first part I'm planning on checking if the user is a member of a certain group and then proceeding accordingly. So far, so good. The problem is, that I really have no idea how to actually limit the term selection. I tried something with the form api, but I just keep getting fatal errors when saving a node.
So... Can you guys help me limit the term selection? Telling me what do I actually need to do would really help. Thanks.