I have a situation where I want to do the following:
take a bunch of POST params and from them create a Q object
urlencode that Q object and turn it into a GET param, redirect
using that param
process the GET that contains the urlencoded Q object, create a
Q object from it, and use it in a filter
I think this should all be possible, however, I am having trouble
recreating the new Q object from the string representation of the
original Q object. Here's an example of the problem:
>>> filter_orig = Q(owner__username='mlevine')
>>> print filter_orig
(AND: ('owner__username', 'mlevine'))
>>> filter_new = Q("%s" % orig)
>>> print filter_new
(AND: (AND: ('owner__username', 'mlevine')))
>>> Task.objects.filter(filter_orig)
[<Task: T1>, <Task: run initial timing>]
>>> Task.objects.filter(filter_new)
Traceback (most recent call last):
...
File "/home/mlevine/django/django_libs/django-admin-ui-july8/lib/
python2.6/site-packages/django/db/models/sql/query.py", line 1520, in
add_filter
arg, value = filter_expr
Note that in the above log, when I print filter_new, there is an extra
AND at the front. Logically this shouldn't be be a problem, but I
suspect that it is indicative of the problem.
Is what I'm doing above supposed to work? Is this a bug?
This is using 1.1 beta.
Margie
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