#30981: Admin changelist crashes when using query expression in the ModelAdmin's
admin_order_field
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Reporter: Petr Dlouhý | Owner: nobody
Type: Uncategorized | Status: new
Component: contrib.admin | Version: 2.2
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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When I use `admin_order_field` with F() expression or any other type of
expression that doesn't have `as_sql` such as:
{{{
class UserProfileAdmin(admin.ModelAdmin):
def get_sum_amount(self, obj):
return obj.sum_amount
get_sum_amount.admin_order_field = F('sum_amount')
}}}
I got the following crash:
{{{
Traceback (most recent call last):
File "/home/petr/.local/share/virtualenvs/aklub_project-
HrPEZ5ak/lib/python3.6/site-packages/django/template/base.py", line 835,
in _resolve_lookup
return self.get_fields()
File "/home/petr/.local/share/virtualenvs/aklub_project-
HrPEZ5ak/lib/python3.6/site-packages/django/contrib/admin/views/main.py",
line 81, in __init__
self.queryset = self.get_queryset(request)
File "/home/petr/.local/share/virtualenvs/aklub_project-
HrPEZ5ak/lib/python3.6/site-packages/django/contrib/admin/views/main.py",
line 435, in get_queryset
ordering = self.get_ordering(request, qs)
File "/home/petr/.local/share/virtualenvs/aklub_project-
HrPEZ5ak/lib/python3.6/site-packages/django/contrib/admin/views/main.py",
line 296, in get_ordering
elif order_field.startswith('-') and pfx == '-':
AttributeError: 'F' object has no attribute 'startswith'
}}}
This is similar issue like https://code.djangoproject.com/ticket/28958 but
wasn't fixed by the patch.
--
Ticket URL: <https://code.djangoproject.com/ticket/30981>
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