Should this work or is there some other equivalent? I want the field to be optional but if filled in, unique in the DB.
IS_EMPTY_OR(IS_NOT_IN_DB(db, 'person.name')) I got an error stack that I can't really understand and assume it's related. Traceback (most recent call last): File "gluon/restricted.py", line 188, in restricted File "/Users/pbreit/web2py/web2py.app/Contents/Resources/applications/init/controllers/default.py" <http://127.0.0.1:8000/admin/default/edit/init/controllers/default.py>, line 88, in <module> File "gluon/globals.py", line 124, in <lambda> File "/Users/pbreit/web2py/web2py.app/Contents/Resources/applications/init/controllers/default.py" <http://127.0.0.1:8000/admin/default/edit/init/controllers/default.py>, line 70, in user File "gluon/tools.py", line 1038, in __call__ File "gluon/tools.py", line 1653, in register File "gluon/sqlhtml.py", line 1031, in accepts File "gluon/html.py", line 1720, in accepts File "gluon/html.py", line 716, in _traverse File "gluon/html.py", line 716, in _traverse File "gluon/html.py", line 716, in _traverse File "gluon/html.py", line 716, in _traverse File "gluon/html.py", line 723, in _traverse File "gluon/html.py", line 1493, in _validate File "gluon/validators.py", line 2327, in __call__ File "gluon/validators.py", line 2314, in urlify AttributeError: 'NoneType' object has no attribute 'decode'
