Opened 14 years ago
Last modified 13 years ago
#13328 closed
Pickling a queryset with a datetime__lte filter causes a TypeError — at Version 1
| Reported by: | Brandon Konkle | Owned by: | nobody |
|---|---|---|---|
| Component: | Database layer (models, ORM) | Version: | 1.2-beta |
| Severity: | Keywords: | pickle, queryset, datetime__lte | |
| Cc: | brandonkonkle@… | Triage Stage: | Accepted |
| Has patch: | yes | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description (last modified by )
We're caching with memcached, and using django.core.cache to directly set cache values. When we try to cache a queryset of blog entries with a datetime__lte filter, we get a TypeError telling us that a string or Unicode object was expected, but a NoneType was received instead. I'm attaching an abbreviated example of the model and manager we're using, and the manage.py shell steps taken to reproduce the error along with the traceback it provides.
The error is related to line 6 of the attached models.py file - if I remove the release_date__lte=datetime.datetime.now() filter, the cache.set works without an issue.
Change History (3)
by , 14 years ago
| Attachment: | interacitve_output.txt added |
|---|
by , 14 years ago
An abbreviated models.py which, when used, reproduces the error.
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iPython interactive interpreter output, including traceback