[Zope-CMF] odd __roles__ behavior in certain CMF tools

[Gary Poster]

Tres, in one of my products I have a problem that I believe I have traced to
the following CMF oddity.  These tests are on a Windows Zope 2.5 binary
distribution, with CMF 1.2.

What it comes down to is that *all* CMF tools that do not inherit from
OFS.Folder do not have the __roles__ method defined (even though, of course,
all of them have been called with Globals.InitializeClass).  This lack of
__roles__ is evident in pdb both if I traverse down and look at __roles__ in
the tool instance (I should see nothing or something like
['Manager','Anonymous'] but get an Attribute Error instead) and even if I
look at the classes themselves, as is evident in the following excerpt from
a pdb transcript:


pdb> from Products.CMFDefault import URLTool
pdb> URLTool.URLTool.__roles__
*** AttributeError: __roles__
pdb> from Products.CMFCore import SkinsTool
pdb> SkinsTool.SkinsTool.__roles__
<Python Method object at 01632B50>
pdb> from Products.CMFCore import WorkflowTool
pdb> WorkflowTool.WorkflowTool.__roles__
<Python Method object at 013E3AD8>
pdb> from Products.CMFCore import DiscussionTool
pdb> DiscussionTool.DiscussionTool.__roles__
*** AttributeError: __roles__
pdb> from Products.CMFCore import CatalogTool
pdb> CatalogTool.CatalogTool.__roles__
<Python Method object at 01632B50>

Notice, as I said, tools that inherit from OFS.Folder have a __roles__
method, and the rest don't.  I tested all of the standard tools and this
held true.  I even discovered that if I add OFS.Folder as a base class to
one of the non-folder tools then __roles__ suddenly appears for them.  I
tried to further isolate what the difference was but didn't get very far
(it's not the OFS.Folder base classes, though).

Is this correct behavior?  If it is, I'd love to know why, 'cause it's
giving me grief :-).  If it would be an error but you can't duplicate this,
I'll clean my distro up and try again to see if it is the effect of one of
my few installed products, but it's fairly clean already (it's just a
development installation with OrderedFolder and two custom products).

Thanks

Gary