#15957: ModelChoiceField slow performance
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Reporter: uriel.bertoche@… | Owner: nobody
Type: Cleanup/optimization | Status: closed
Milestone: | Component: Forms
Version: 1.3 | Severity: Normal
Resolution: wontfix | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
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Changes (by aaugustin):
* status: new => closed
* needs_better_patch: => 0
* resolution: => wontfix
* needs_tests: => 0
* needs_docs: => 0
Comment:
By definition, a !ModelChoiceField is going to include all elements in the
queryset. I don't see how Django could do this faster than O(n). You
shouldn't use !ModelChoiceField for more than 1000 entries. Anyway, it
becomes very quickly unusable beyond 100 entries.
See the documentation here:
http://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.raw_id_fields
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Ticket URL: <http://code.djangoproject.com/ticket/15957#comment:1>
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