Hello.
I have in model:
Field('avatar', 'upload', required=False, autodelete=True, label=T('Avatar'),
uploadfolder=os.path.join(request.folder, 'static/images/avatars'),
requires=[IS_LENGTH(16384), IS_IMAGE()])
Well, the logic is simple: "avatar is not necessary, but when it uploaded, it
must be image size of <= 16KiB".
But I *can not* submit form without image uploading, error is "Invalid Image"
always.
Is it a bug or I do not understand something?
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