#9554: select related - maximum depth
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Reporter: gert | Owner: nobody
Status: reopened | Milestone:
Component: Contrib apps | Version: 1.0
Resolution: | Keywords: select related
Stage: Unreviewed | Has_patch: 0
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Changes (by gert):
* status: closed => reopened
* resolution: invalid =>
* component: Database layer (models, ORM) => Contrib apps
Comment:
I think maybe a better place to address this issue is in the admin
application by just adding a depth=3 parameter to the two select_related
instructions in admin/views/main.py
{{{
def get_query_set(self):
...
# Use select_related() if one of the list_display options is a
field
# with a relationship.
if self.list_select_related:
qs = qs.select_related(depth=3)
else:
for field_name in self.list_display:
try:
f = self.lookup_opts.get_field(field_name)
except models.FieldDoesNotExist:
pass
else:
if isinstance(f.rel, models.ManyToOneRel):
qs = qs.select_related(depth=3)
break
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/9554#comment:2>
Django <http://code.djangoproject.com/>
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