On 9 loka, 20:15, ptone <pres...@ptone.com> wrote:
> Unsurprisingly - this has come up before:
>
> Earlier
> discussionhttps://groups.google.com/forum/?fromgroups=#!topic/django-developers...
>
> tickets:https://code.djangoproject.com/ticket/17546https://code.djangoproject.com/ticket/2659https://code.djangoproject.com/ticket/11352
>
> All the ticket's were wontfixed
OK, it seems .get_or_none() method is out. I can see the point of that
decision, there are a lot of similar methods that could be added using
the convenience argument (like .first() in conjunction
with .latest()).
But, how about .get() with __default kwarg? No new method, and this is
obviously Pythonic - see dict.get() and dict.pop(). The default
argument for pop() is there only to avoid code like:
try:
val = somedict.pop('somekey')
except KeyError:
val = None
The __default kwarg is easy to implement:
https://github.com/akaariai/django/commit/3ea711544364723b26fcef83dc700f0b359655c9
On the other hand, this is still API bloat... So, I will not push this
issue further without some support for this idea.
It would maybe be time to investigate again the "chainable" manager
methods. Having them available would solve a lot of the convenience
method problems. And a lot of other problems, too...
- Anssi
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