[Zope-CMF] cPickled Error when uploading a file

[Karim Yaici]

Hi,
I have created a small Portal content type which allows you to combine
structured text and file attachments. I was inspired by 'ComplexDocument'
;-).

My docuement is 'folderish'  and that's where I want my files to be uploaded
to. If I don't upload a file every thing works but when I try using a
attachments I get the following error:

Error Type: cPickle.PicklingError
Error Value: Cannot pickle objects.
<.....>
File C:\Program Files\Zope\2.3.2\lib\python\ZODB\Connection.py, line 375, in
commit
    (Info: (('Products.MyProduct', 'MyDocument'),
'\000\000\000\000\000\0000}', ''))
cPickle.PicklingError: (see above)

Here is the code that does the upload (again, heavily inspired by
ComplexDocument):

filenamepattern=re.compile(r'[A-Za-z0-9][\w\_\-\.]*$')
def add_file(self, sf):
        basename,title = cookId('','',sf)
        if not filenamepattern.match(basename):
            return

        suffix=os.path.splitext(basename)[1]
        folder=self

        if folder:
            if string.lower(suffix) in ['.htm', '.html']:
                folder.manage_addDTMLDocument(id=basename, title='',
file=sf)

            elif string.lower(suffix) in ['.gif', '.jpg', '.jpeg', '.png']:
                folder.manage_addImage(id=basename, title='', file=sf)

            elif len(suffix)==0 and basename[-5:] == "_html":
                folder.manage_addDTMLDocument(id=basename, title='',
file=sf)
            else:
                folder.manage_addFile(id=basename, title='', file=sf)

The code exits happily from this method, but then without the file upload
every thing works fine. Probably a FileUpload object (that I get from the
form) is not appropriate to pass into manage_addFile.

Any suggestions?

Thank you in advance.

Karim