References and Virtual Fields do not play nice together.

[hiro]

Is this a bug, a limitation or by design?

I create a new welcome application and add the following tables and fields:

db.define_table('entity',

    Field('entity_name', 'string'),

    Field('slogan', 'string'),

)

db.entity.slogan2 =  Field.Virtual(lambda row: row.entity.slogan+' is the best slogan ever')

db.define_table('customer',

    Field('entity_id', 'reference entity'),

    Field('name','string')

)

db.customer.entity_id.requires=IS_IN_DB(db, 'entity.id', '%(entity_name)s',zero=T('choose one'))

I am now unable to add customers using appadmin. Trying at create the crud form for inserting a customer generates the following error:

<type 'exceptions.AttributeError'>('Row' object has no attribute 'slogan')

Using web2py 2.6.3-stable

Is someone else able to reproduce this error?

Same thing happens when I try to remove enteties.

[Massimo Di Pierro]

Fixed in trunk!

[hiro]

Thank you!

[Marin Pranjić]

I get this error ONLY with appadmin.

It's not because of references.

For now you can use:
lambda row: row.entity.get('slogan', '')+' is the best slogan ever'

Marin

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[hiro]

I have trouble in my application as well in some cases. I solved it for now by switching to the old style of virtual fileds