Re: toOne relationship returns base class instead of subcl

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On 29 Jul 2004 10:30:02 +0200, Sebastien Bigaret
<[email protected]> wrote:
> 
>   Again, could you be a little more explicit, or exhibit a short
> example?  Sorry for getting back on this, but the only way I think this
> can happen is the one I already posted (see below); if it's not the
> case, this is a serious bug I definitely do not want to let escape.

sorry for the delay in answering, and the confusion when doing so. I
feel terribly embarrassed :(

HOWever, here goes.

With the attached model (which is ugly, and breaks some of your naming
conventions, but I just hacked out the attributes and renamed things
from the model being used by a team I'm helping to get up to speed),
using vainilla MDL 0.9-pre17.1 and NF 0.7:


>>> from Modeling.EditingContext import EditingContext
>>> import Store
>>> ec=EditingContext()
>>> ec.fetch('Address')[0]
<Address.Address object at 0x4071c74c>
>>> a = _
>>> p = ec.fetch('Person', isDeep=1)[0]
<Employee.Employee object at 0x4072d88c>
>>> p = _
>>> a.getPerson()
<Employee.Employee object at 0x4072d88c>
>>> a.getPerson().getId()
1
>>> a.isFault()
False
>>> p.getAddress()
<Modeling.FaultHandler.AccessArrayFaultHandler instance at 0x40733a4c>
>>> list(p.getAddress())
[<Address.Address object at 0x4071c74c>]
>>> ec.fetch('Address', 'Person.id == 1')
[]
>>> ec.fetch('Address', 'Person.id == 1', isDeep=1)
[]

-- 
John Lenton ([email protected]) -- Random fortune:
bash: fortune: command not found

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from Modeling.PyModel import *

# Defaults
AString.defaults['width'] =3D 40

Entity.defaults['properties'] =3D [
    APrimaryKey('id', isClassProperty=3D1, isRequired=3D1, doc=3D'PK')
]

#Description Data sources
dataSource =3D {'database': 'store', 'host': 'localhost',
              'user': 'john', 'password': '',
              }

model =3D Model('Store',
              adaptorName=3D'Postgresql',
              connDict =3D dataSource,
              version =3D '0.1',
              )

# entidades del modelo
model.entities =3D [
       Entity('Person'),

       Entity('Employee', parent =3D 'Person',
               properties =3D [AString('Tag'),],
               ),

       Entity('Address'),

]
# asociaciones del modelo
model.associations =3D[
               Association('Address','Person',
                           relations=3D['Person','Address'],
                           delete=3D['nullify','deny'],
                           ),

       ]

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