>
> My idea would be to add a warning that the session will be detected as
> changed and written to disk etc. (depending on session type) if a dict
> value (like auth.user_groups) of the session is accessed outside a
> controller function
>
Note, the problem occurs when creating new objects in the global scope by
iteration/item access of a dictionary. You can avoid the problem by (a)
doing the iteration/access inside a function, whether in a model,
controller, or view, or (b) avoiding assignment to a variable. Why this is
the case is a mystery.
In your case, you should be able to do something like the following in a
model:
def check_roles():
for role in auth.user_groups.itervalues():
...
if auth.user_id:
check_roles()
Now "role" is no longer in the global scope, and it appears to work.
You could also use map(), which won't create any variables in the global
scope:
outcome = map(some_function, auth.user_group.itervalues())
Anthony
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