#13864: DatabaseError while saving with force_update set
------------------------------------------+---------------------------------
Reporter: fva | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: 1.2
Keywords: force_update DatabaseError | Stage: Unreviewed
Has_patch: 0 |
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Models:
{{{
class A ( models.Model ) :
a = models.IntegerField ( null=True )
class B ( A ) : pass
}}}
session:
{{{
In [3]: b = B()
In [4]: b.save()
In [5]: b.save ( force_update = True )
---------------------------------------------------------------------------
DatabaseError Traceback (most recent call
last)
<ipython console> in <module>()
django/db/models/base.pyc in save(self, force_insert, force_update, using)
428 if force_insert and force_update:
429 raise ValueError("Cannot force both insert and
updating in model saving.")
--> 430 self.save_base(using=using, force_insert=force_insert,
force_update=force_update)
431
432 save.alters_data = True
django/db/models/base.pyc in save_base(self, raw, cls, origin,
force_insert, force_update, using)
496 rows =
manager.using(using).filter(pk=pk_val)._update(values)
497 if force_update and not rows:
--> 498 raise DatabaseError("Forced update did
not affect any rows.")
499 else:
500 record_exists = False
DatabaseError: Forced update did not affect any rows.
}}}
but simple b.save() updates fine.
--
Ticket URL: <http://code.djangoproject.com/ticket/13864>
Django <http://code.djangoproject.com/>
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