[web2py] dynamic link and image as represent in db Field

[frasse]

Hi
Do you know how I can change  link and img in join field depend on
"numberPlayer" Field value ? Is it a easy one line way to do it here
on  "db.define_table" ?
db.define_table('games',
                Field('gameName',default='Game'),
                Field('ownerEmail'),
                Field('numberPlayer', default = 1),
 
Field('StartTime','datetime',default=now),
                Field('join',represent =lambda
value:A(IMG(_src=url,_alt='join'),
                    _href=URL('join_game', args=value)))
                )

Thanx
Frasse