Hi,
Suppose you have 2 fields in a query form, both of which are optional.
Is there an idiom for building a dictionary to pass into
objects.filter() instead of checking the permutations?
eg instead of crazy stuff like this:
[[[
if use_sources and use_level:
results = NodeEvent.objects.filter(
source_time__range=(start_date, end_date),
level__exact=level,
source__in=sources)
elif use_sources and not use_level:
results = NodeEvent.objects.filter(
source_time__range=(start_date, end_date),
source__in=sources)
elif not use_sources and use_level:
results = NodeEvent.objects.filter(
source_time__range=(start_date, end_date),
level__exact=level)
else:
results = NodeEvent.objects.filter(
source_time__range=(start_date, end_date)
]]]
something like this:
[[[
if use_sources:
kwargs['sources']= request.GET.getlist('sources')
if use_level:
kwargs['level'] =request.GET['level']
...
results = NodeEvent.objects.filter(kwargs)
]]]
I chanced passing a dictionary straight into objects.filter() as above,
(given it has a **kwargs signature), but got this:
'dict' object has no attribute 'get_sql'
when the QuerySet was evaluated.
cheers
Bill
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