[web2py] SQLForm

[Brian F]

I have a table with a user id, an item id, and a permission level. I
am trying to generate a form using SQLForm to change the permission
level. The problem is I still want the user id and the item id to show
up, but I don't want them to be editable. I would have thought setting
writeable to false would have accomplished that, but the field still
showed up as editable. How would I go about doing this?