excellent test case ! heres the bug more directly:
from sqlalchemy import *
import logging
logging.basicConfig()
logging.getLogger('sqlalchemy.orm.unitofwork').setLevel(logging.DEBUG)
logging.getLogger('sqlalchemy.engine').setLevel(logging.INFO)
meta = BoundMetaData('sqlite://')
a = Table('a', meta,
Column('id', Integer, primary_key=True),
Column('data', String(30)),
Column('cid', Integer, ForeignKey('c.id')),
)
b = Table('b', meta,
Column('id', Integer, ForeignKey("a.id"), primary_key=True),
Column('data', String(30)),
)
c = Table('c', meta,
Column('id', Integer, primary_key=True),
Column('data', String(30)),
Column('aid', Integer, ForeignKey('a.id', use_alter=True,
name="foo")),
)
meta.create_all()
class A(object):pass
class B(A):pass
class C(object):pass
mapper(A, a, properties={
'cs':relation(C, primaryjoin=a.c.cid==c.c.id)
})
mapper(B, b, inherits=A, inherit_condition=b.c.id==a.c.id, properties={
})
mapper(C, c, properties={
'arel':relation(A, primaryjoin=a.c.id==c.c.aid)
})
sess = create_session()
bobj = B()
sess.save(bobj)
cobj = C()
sess.save(cobj)
sess.flush()
i already knew what the change has to be, i just really needed to see
how the error could occur. fix will be up soon.
On Mar 20, 2007, at 7:03 AM, svilen wrote:
> here. There are 2 paths in the dependency-graph, and if it chooses one
> of them, it goes wrong.
>
> The testcase sometimes runs, sometimes not - changing anything (e.g.
> cmdline params) may change the hash-strategy (hence the choice) - so
> try many times.
>
> one dump is the ok-one, the other is error one.
>
>> yeah sorry I can conceive of a potential pattern that would raise
>> this issue but im not able to create a mapping/scenario that
>> illustrates it. see if you can get me something on this.
>>
>> On Mar 19, 2007, at 6:49 AM, svilen wrote:
>>>> Michael Bayer wrote:
>>>>> So you can take the post_update out and update to rev 2424.
>>>
>>> i have a problem with this 2424, before that was ok.
>>> As i can't separate a short case now, here the conditions:
>>>
>>> multi-table-inheritance, polymorphic. Nothing else too fancy.
>>> table_Entity has primary db_id, hand-made/sequence obj_id and
>>> other data;
>>> While populating the database:
>>> ...
>>> * SA: INFO INSERT INTO "Entity" (disabled, obj_id, atype) VALUES
>>> (?, ?, ?)
>>> * SA: INFO [0, 1, 'Person']
>>> * SA: INFO INSERT INTO "Person" (name_id, db_id) VALUES (?, ?, )
>>> * SA: INFO [2, 1]
>>>
>>> and now 2423 does:
>>> * SA: INFO COMMIT
>>>
>>> while 2424 does:
>>> * SA: INFO INSERT INTO "Entity" (disabled, obj_id, db_id, atype)
>>> VALUES (?, ?, ?, ?)
>>> * SA: INFO [0, 1, 1, 'Person']
>>> * SA: INFO ROLLBACK
>>>
>>>
>>> for whatever reason it decides that the same object is dirty AND
>>> new, and attempts to reinsert it once more.
>>> Any idea? do u want logs?
>>
>
> >
>
> * SA: DEBUG Dependent tuples:
> (Name->Entity)
> (Passport->Entity)
> (Address->Entity)
> (Entity->Address)
> * SA: DEBUG Dependency sort:
> Mapper|Name|Name
> Mapper|Passport|Passport
> Mapper|Address|Address (cycles: [Mapper|Address|Address, Mapper|
> Entity|Entity])
>
> * SA: INFO Task dump:
>
> UOWTask(<address1>, Name/Name/None) (save/update phase)
> |- Save Name(<address2>)
> | |- Process Person(<address3>).ime
> |
> |- UOWTask(<address4>, Passport/Passport/None) (save/update phase)
> | | |- Process Person(<address3>).passport
> | |
> | |- UOWTask(<address5>, Address/Address/None) (contains
> cyclical sub-tasks) (save/update phase)
> | | |- Save (placeholder)
> | | |
> | | |- UOWTask(<address5>-><address6>, Person/Person/None)
> (save/update phase)
> | | | |- Save Person(<address3>)
> | | | |----
> | | |
> | | |
> | | |- UOWTask(<address7>, Entity/Entity/None) (save/update
> phase)
> | | | |- Save Person(<address3>)
> | | | |- (empty task)
> | | |
> | | |----
> | |
> | |----
> |
> |
> |- UOWTask(<address4>, Passport/Passport/None) (delete phase)
> | |
> | |- UOWTask(<address5>, Address/Address/None) (contains
> cyclical sub-tasks) (delete phase)
> | | |
> | | |- UOWTask(<address7>, Entity/Entity/None) (delete phase)
> | | | |- (empty task)
> | | |
> | | |
> | | |- UOWTask(<address5>-><address6>, Person/Person/None)
> (delete phase)
> | | | |----
> | | |
> | | |----
> | |
> | |----
> |
> |----
>
>
> * SA: DEBUG (Name|Name) save_obj() start, batched
> * SA: INFO BEGIN
> * SA: DEBUG (Name|Name) save_obj() table 'Name' instance
> Name@<address2> identity (<class 'base.Name'>, (None,), None)
> * SA: INFO INSERT INTO "Name" (ime) VALUES (?)
> * SA: INFO ['Person0']
> * SA: DEBUG execute() instances: Name@<address2>(Name.db_id)-
> >Person@<address3>(Person.ime_id) ('1')
> * SA: DEBUG (Passport|Passport) save_obj() start, batched
> * SA: DEBUG (Address|Address) save_obj() start, batched
> * SA: DEBUG (Person|Person) save_obj() start, batched
> * SA: DEBUG (Person|Person) save_obj() table 'Entity' instance
> Person@<address3> identity (<class 'models.Person'>, (None,), None)
> * SA: DEBUG (Person|Person) Using polymorphic identity 'Person' for
> insert column 'atype'
> * SA: INFO INSERT INTO "Entity" (disabled, time_trans, time_valid,
> atype) VALUES (?, ?, ?, ?)
> * SA: INFO [0, None, None, 'Person']
> * SA: DEBUG execute() instances: Person@<address3>(Entity.db_id)-
> >Person@<address3>(Person.db_id) ('1')
> * SA: DEBUG (Person|Person) save_obj() table 'Person' instance
> Person@<address3> identity (<class 'models.Person'>, (1,), None)
> * SA: INFO INSERT INTO "Person" (ime_id, vazrast, address_id, egn,
> passport_id, snimka, db_id) VALUES (?, ?, ?, ?, ?, ?, ?)
> * SA: INFO [1, 10, None, '', None, None, 1]
> * SA: DEBUG execute() instances: Person@<address3>(Entity.db_id)-
> >Person@<address3>(Person.db_id) ('1')
> * SA: DEBUG (Entity|Entity) save_obj() start, batched
> * SA: DEBUG (Entity|Entity) save_obj() table 'Entity' instance
> Person@<address3> identity (<class 'models.Person'>, (1,), None)
> * SA: DEBUG (Entity|Entity) Using polymorphic identity 'Person' for
> insert column 'atype'
> * SA: INFO INSERT INTO "Entity" (disabled, time_trans, time_valid,
> db_id, atype) VALUES (?, ?, ?, ?, ?)
> * SA: INFO [0, None, None, 1, 'Person']
> * SA: INFO ROLLBACK
>
> * SA: DEBUG Dependent tuples:
> (Name->Entity)
> (Passport->Entity)
> (Address->Entity)
> (Entity->Address)
> * SA: DEBUG Dependency sort:
> Mapper|Name|Name
> Mapper|Passport|Passport
> Mapper|Entity|Entity (cycles: [Mapper|Entity|Entity, Mapper|
> Address|Address])
>
> * SA: INFO Task dump:
>
> UOWTask(<address1>, Name/Name/None) (save/update phase)
> |- Save Name(<address2>)
> | |- Process Person(<address3>).ime
> |
> |- UOWTask(<address4>, Passport/Passport/None) (save/update phase)
> | | |- Process Person(<address3>).passport
> | |
> | |- UOWTask(<address5>, Entity/Entity/None) (contains
> cyclical sub-tasks) (save/update phase)
> | | |- Save (placeholder)
> | | |
> | | |- UOWTask(<address5>-><address6>, Person/Person/None)
> (save/update phase)
> | | | |- Save Person(<address3>)
> | | | |----
> | | |
> | | |
> | | |- UOWTask(<address7>, Address/Address/None) (save/
> update phase)
> | | | | |- Process Person(<address3>).address
> | | | |----
> | | |
> | | |----
> | |
> | |----
> |
> |
> |- UOWTask(<address4>, Passport/Passport/None) (delete phase)
> | |
> | |- UOWTask(<address5>, Entity/Entity/None) (contains
> cyclical sub-tasks) (delete phase)
> | | |
> | | |- UOWTask(<address7>, Address/Address/None) (delete phase)
> | | | |----
> | | |
> | | |
> | | |- UOWTask(<address5>-><address6>, Person/Person/None)
> (delete phase)
> | | | |----
> | | |
> | | |----
> | |
> | |----
> |
> |----
>
>
> * SA: DEBUG (Name|Name) save_obj() start, batched
> * SA: INFO BEGIN
> * SA: DEBUG (Name|Name) save_obj() table 'Name' instance
> Name@<address2> identity (<class 'base.Name'>, (None,), None)
> * SA: INFO INSERT INTO "Name" (ime) VALUES (?)
> * SA: INFO ['Person0']
> * SA: DEBUG execute() instances: Name@<address2>(Name.db_id)-
> >Person@<address3>(Person.ime_id) ('1')
> * SA: DEBUG (Passport|Passport) save_obj() start, batched
> * SA: DEBUG (Entity|Entity) save_obj() start, batched
> * SA: DEBUG (Person|Person) save_obj() start, batched
> * SA: DEBUG (Person|Person) save_obj() table 'Entity' instance
> Person@<address3> identity (<class 'models.Person'>, (None,), None)
> * SA: DEBUG (Person|Person) Using polymorphic identity 'Person' for
> insert column 'atype'
> * SA: INFO INSERT INTO "Entity" (disabled, time_trans, time_valid,
> atype) VALUES (?, ?, ?, ?)
> * SA: INFO [0, None, None, 'Person']
> * SA: DEBUG execute() instances: Person@<address3>(Entity.db_id)-
> >Person@<address3>(Person.db_id) ('1')
> * SA: DEBUG (Person|Person) save_obj() table 'Person' instance
> Person@<address3> identity (<class 'models.Person'>, (1,), None)
> * SA: INFO INSERT INTO "Person" (ime_id, vazrast, address_id, egn,
> passport_id, snimka, db_id) VALUES (?, ?, ?, ?, ?, ?, ?)
> * SA: INFO [1, 10, None, '', None, None, 1]
> * SA: DEBUG execute() instances: Person@<address3>(Entity.db_id)-
> >Person@<address3>(Person.db_id) ('1')
> * SA: DEBUG (Address|Address) save_obj() start, batched
> * SA: DEBUG (Address|Address) delete_obj() start
> * SA: DEBUG (Person|Person) delete_obj() start
> * SA: DEBUG (Entity|Entity) delete_obj() start
> * SA: DEBUG (Passport|Passport) delete_obj() start
> * SA: DEBUG (Name|Name) delete_obj() start
> * SA: INFO Execute Complete
> * SA: INFO COMMIT
> <uow.py>
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