> d = Details.objects.filter(creation_date__gte=datetime.date(2007, 06,
> 01))
> d = d.header_set.filter(code__exact='123', author__exact='dave')
>
> but I get an
> AttributeError: 'QuerySet' object has no attribute 'header_set'
The results (which you store in "d") are a QuerySet which is a
collection of Details. Each Detail within that set has a
header_set property. Thus it would make sense to do something like
for thing in d:
for header in thing.header_set:
do_something(header)
Or, if you want the headers, ask for them, not the details:
since = datetime.date(2007,6,1)
headers = Headers.objects.filter(
code='123',
author='dave',
header__creation_date__gte=since # (*)
)
for header in headers:
do_something(header)
The line marked with (*) may be what you're looking for.
-tim
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