On Wed, Apr 21, 2010 at 19:33, Daniel Roseman <dan...@roseman.org.uk> wrote:
>>
>> Any tips?
>
> This is the expected behaviour. You've asked for an Author object, so
> that's what you've got. There's no way to tell from the Author model
> that this particular instance of it is also an instance of Translator.
I presume this will make you all wince, but while appreciating the
discussion I've caused I've solved it thusly:
------------------------
views.py
def index(request):
all_authors = Author.objects.all()
all_origAuthors = []
all_translators = Translators.objects.all()
for author in all_authors:
if author in all_translators:
pass
else:
all_origAuthors.append(author)
return render_to_response('books/index.html',locals())
------------------------
That nested loop is pretty inefficient, but it's a low visit site and
it shouldn't matter too much.
The other piece of advice I got was that I should have created a
second subclass:
class Author(Models.model) - this class _could_ be abstracted in this change.
class Writer(Author) - the Original Author
class Translator(Author)
Whether Author is abstract or not, we don't create any Author objects
directly, only Writer and Translator. Then it's easier :)
cheers
L.
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