#3288: ForeignKey to 'self' and select_related() = infinite recursion
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Reporter: Max Derkachev <[EMAIL PROTECTED]> | Owner: adrian
Type: defect | Status: new
Priority: normal | Milestone:
Component: Database wrapper | Version:
Severity: major | Keywords:
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Maybe it's a variant of #3045 bug.
The [simplified] case is
{{{
#!python
class Foo(models.Model):
parent = models.ForeignKey('self')
class Meta:
db_table = 'foos'
foo = Foo.objects.select_related().get(pk=1)
}}}
That leads to infinite recursion in
django.db.models.query.fill_table_cache. The bottom of the stack trace is:
{{{
........ many many lines ............
File "/home/maxim/dproject/django/db/models/query.py", line 684, in
fill_table_cache
fill_table_cache(f.rel.to._meta, select, tables, where, db_table,
cache_tables_seen)
File "/home/maxim/dproject/django/db/models/query.py", line 684, in
fill_table_cache
fill_table_cache(f.rel.to._meta, select, tables, where, db_table,
cache_tables_seen)
File "/home/maxim/dproject/django/db/models/query.py", line 681, in
fill_table_cache
where.append('%s.%s = %s.%s' % \
File "/home/maxim/dproject/django/db/models/fields/related.py", line
737, in get_related_field
return self.to._meta.get_field(self.field_name)
File "/home/maxim/dproject/django/db/models/options.py", line 98, in
get_field
if f.name == name:
RuntimeError: maximum recursion depth exceeded in cmp
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/3288>
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