Johannes is right (try another name for the fields field) yet the line of the error does not exist in my copy of dal.py. Also try a newer web2py version, you may get no error, or a better description of the problem.
Massimo On Jul 27, 6:07 am, François Le Gal <[email protected]> wrote: > That's the code i try : > > db_system = SQLDB("sqlite://db_system.db") > > db_system.define_table("fields",Field("name")) > db_system.define_table("objects",Field("name"),Field("fields",db_system.fie > lds)) > > But when i execute this code, i got this error : > > File "/home/fanch/Logiciels/web2py/gluon/dal.py", line 4228, in > define_table > t._create_references() > File "/home/fanch/Logiciels/web2py/gluon/dal.py", line 4536, in > _create_references > field=self[fieldname] > File "/home/fanch/Logiciels/web2py/gluon/dal.py", line 4592, in > __getitem__ > return dict.__getitem__(self, str(key)) > KeyError: 'SUBSTR(objects.fields,1,(2 - 1))' > > What's wrong ? Any idea ? > > thanks.

