#17056: Creation of instances of a PK-only model fails under Oracle after
introduction of bulk insert feature
-------------------------------------+-------------------------------------
Reporter: ramiro | Owner: nobody
Type: Bug | Status: new
Component: Database | Version: SVN
layer (models, ORM) | Keywords:
Severity: Normal | Has patch: 0
Triage Stage: | Needs tests: 0
Unreviewed | Easy pickings: 0
Needs documentation: 0 |
Patch needs improvement: 0 |
UI/UX: 0 |
-------------------------------------+-------------------------------------
After r16739, trying to create an instance of this model:
{{{
from django.db import models
class Book(models.Model):
pass
}}}
with:
{{{
>>> from django.test import TestCase
>>> from models import Book
>>> Book.objects.create()
}}}
generates an error like this when run against Oracle:
{{{
Traceback (most recent call last):
File "dtest/dtest01/store/tests.py", line 9, in test_insert
Book.objects.create()
File "django/upstream/django/db/models/manager.py", line 137, in create
return self.get_query_set().create(**kwargs)
File "django/upstream/django/db/models/query.py", line 372, in create
obj.save(force_insert=True, using=self.db)
File "django/upstream/django/db/models/base.py", line 464, in save
self.save_base(using=using, force_insert=force_insert,
force_update=force_update)
File "django/upstream/django/db/models/base.py", line 551, in save_base
result = manager._insert([self], fields=fields, return_id=update_pk,
using=using, raw=raw)
File "django/upstream/django/db/models/manager.py", line 203, in _insert
return insert_query(self.model, objs, fields, **kwargs)
File "django/upstream/django/db/models/query.py", line 1556, in
insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "django/upstream/django/db/models/sql/compiler.py", line 848, in
execute_sql
cursor.execute(sql, params)
File "django/upstream/django/db/backends/oracle/base.py", line 651, in
execute
query = convert_unicode(query % tuple(args), self.charset)
TypeError: not all arguments converted during string formatting
}}}
The compiler is generating the `"DEFAULT"` SQL keyword twice, once as part
of the SQL query literal and once in the arguments tuple:
{{{
[
(
'INSERT INTO "STORE_BOOK" ("ID") VALUES (DEFAULT) RETURNING
"STORE_BOOK"."ID" INTO %s',
('DEFAULT', <django.db.backends.oracle.base.InsertIdVar object at
0x912c0ac>)
)
]
}}}
Currently, Django own test suite shows 80 errors of this type.
--
Ticket URL: <https://code.djangoproject.com/ticket/17056>
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