[web2py] grid usage

[brushek]

Hello,

I want to use SQLFORM.grid in one controller like this:

def klienci():
    if request.vars.a == 'adresacje':
        grid=SQLFORM.grid(db.adresacje,user_signature=False)
    elif request.vars.a == 'serwery' or 'serwery' in request.args:
        grid=SQLFORM.grid(db.serwery,user_signature=False)
    elif request.vars.a == 'klienci':
        grid=SQLFORM.grid(db.klienci,user_signature=False)
    return dict(grid=grid)

Form is showing, but when I click on edit (or enything else action) I
get following error:

Traceback (most recent call last):
  File "/home/users/brushek/web2py/gluon/restricted.py", line 192, in
restricted
    exec ccode in environment
  File "/home/users/brushek/web2py/applications/staty/controllers/
default.py", line 135, in <module>
  File "/home/users/brushek/web2py/gluon/globals.py", line 149, in
<lambda>
    self._caller = lambda f: f()
  File "/home/users/brushek/web2py/applications/staty/controllers/
default.py", line 92, in klienci
    return dict(grid=grid)
UnboundLocalError: local variable 'grid' referenced before assignment


How to use grid with vars ? Do I need to make diffrent controllers/
views to use grid ?

regards
brushek