hi anthony,
here is the trace back :
TRACEBACK
1.
2.
3.
4.
5.
6.
Traceback (most recent call last):
File "/host/Downloads/web2py/gluon/restricted.py", line 212, in restricted
exec ccode in environment
File "/host/Downloads/web2py/applications/retail/views/default/bill.html",
line 83, in
Difficult to help without knowing what the error is. Do you have a
traceback?
When you return a dict from a controller function, web2py looks for the
associated view and then executes the view. If the view is expecting some
variable to be in the returned dict but that variable happens not to be
hi anthony,
sorry, i'm not sure what do you mean 'the view is expecting a particular
variable to be returned but that variable is not in locals()'
here is the code that return an error:
for k, v in session.order.items():
if v==0:
del session.order[k]
*redirec
What error occurs if you return locals()? If the view is expecting a
particular variable to be returned but that variable is not in locals(),
that would cause an error -- is that the issue?
Anthony
On Friday, February 15, 2013 7:39:17 PM UTC-5, 黄祥 wrote:
>
> thank you so much for your explainat
thank you so much for your explaination, antony, i thought it was an
illegal operation in web2py work flow or programming logic. but some times
it's wise to decide it whether use redirect or return locals(), or is there
any other options to do this except using redirect or return locals()?
here
Yes, you can have multiple return statements in different logic branches of
a function.
Anthony
On Friday, February 15, 2013 11:44:02 AM UTC-5, 黄祥 wrote:
>
> thank you so much for your detail explaination about the differnce logic,
> anthony.
> according to your explaination about return so tha
thank you so much for your detail explaination about the differnce logic,
anthony.
according to your explaination about return so that i've modified into :
*#controllers/default.py*
def order_callback():
id=int(request.vars.id)
if request.vars.action=='add':
session.order[id]=sess
In the second and third cases, you delete session.order[id] but then try to
return it, which will generate an error (so the response to the Ajax call
will be a 500 error). This doesn't happen in the first case because the
redirect happens before the return.
Anthony
On Thursday, February 14, 20
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