Hello,
I have something I would presume was a very common pattern. I have a
view which gets a primary-key (from the user) as second argument:
def my_view( request , pk ):
obj = Class.objects.get( pk = pk)
# Do something with obj and return a suitable response.
Now, of course I would like to check whether the object identified by
'pk' is in the database, and return a suitable error message if that
fails; I was halfway expecting to find a "has_key() / exists() / ..."
method, but it seems the only way to handle this gracefully is by
catching the DoesNotExist exception?
I have never really got very friendly with exceptions, I tend to
consider them as something exceptional which "should not" happen,
whereas the fact that the database does not contain a particular key
is in my opinion something quite ordinary and not by any means
"exceptional".
Or maybe I am misunderstanding roally here?
Joakim
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