#13871: contrib.admin:list_editable - ForeignKey performance is O(m*n)
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Reporter: chadc | Owner: nobody
Status: new | Milestone:
Component: django.contrib.admin | Version: 1.2
Resolution: | Keywords: list_editable,
admin, ForeignKey, admin efficiency
Stage: Unreviewed | Has_patch: 0
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Changes (by patrys):
* needs_better_patch: => 0
* needs_tests: => 0
* needs_docs: => 0
Comment:
Keep in mind the formset is using forms that can apply additional
filtering to the data sets thus making each choice set unique. If you want
to introduce some sort of caching, you pretty much have to cache by
serialized query params. Also you need to make sure the cache is thread-
safe and does not outlive the formset (your CachedSelect does not seem to
ever invalidate the cache).
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Ticket URL: <http://code.djangoproject.com/ticket/13871#comment:1>
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