error when using circular reference..
db.define_table('board_meeting',
Field('agenda', 'json'),
Field('process',db.process),
Field('event','reference company_process'),
Field('serial', length=100),
Field('address','string'),
Field('description','text'),
Field('resolution','json'),
format = '%(serial)s')
db.define_table("company_process",
Field('process',db.process),
Field('company',db.company),
Field('board_meeting',db.board_meeting),
Field('egm',db.board_meeting),
Field('steps','integer'),
Field('filling_document','json'),
auth.signature,
format='%(process)s')