Using web2py 2.0.8 and submitting form with attached photo file (standard 
widget) and 'delete' (photo) checked I get such error: 

Traceback (most recent call last):
  File "/home/donatas/ProCursus/projects/web2py/gluon/restricted.py", line 209, 
in restricted
    exec ccode in environment
  File 
"/home/donatas/ProCursus/projects/web2py/applications/bow/controllers/plugin_biography.py",
 line 4797, in <module>
  File "/home/donatas/ProCursus/projects/web2py/gluon/globals.py", line 185, in 
<lambda>
    self._caller = lambda f: f()
  File "/home/donatas/ProCursus/projects/web2py/gluon/tools.py", line 2783, in f
    return action(*a, **b)
  File 
"/home/donatas/ProCursus/projects/web2py/applications/bow/controllers/plugin_biography.py",
 line 1022, in edit_biography_client
    if form.process(dbio=False, onvalidation=__check_biography_status).accepted:
  File "/home/donatas/ProCursus/projects/web2py/gluon/html.py", line 2106, in 
process
    self.validate(**kwargs)
  File "/home/donatas/ProCursus/projects/web2py/gluon/html.py", line 2053, in 
validate
    if self.accepts(**kwargs):
  File "/home/donatas/ProCursus/projects/web2py/gluon/sqlhtml.py", line 1331, 
in accepts
    source_file = open(f, 'rb')
IOError: [Errno 2] No such file or directory: 
'/home/donatas/ProCursus/projects/web2py/applications/bow/biography_photo.photo_jpg.b85f77f1863e10a9.31365f425544494e41535f532e7469662e6a7067.jpg'


I see that folder 'uploads' is missing in path. I think it's bug, because it 
was working with v1.99.7. My model:

db.define_table('biography_photo',

    Field('biography_id', 'reference biography_biography', readable=False, 
writable=False),
    Field('photo_jpg', 'upload', label=T('biography_photo__photo'),
          uploadfolder=os.path.join(request.folder, 'uploads'), 
uploadseparate=True, autodelete=True,
          represent = lambda value, row: A(row.photo_filename, 
_href=URL('download', args=value))),
    Field('photo_filename')
)

-- 



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