You can achieve the expected result using computed fields.
db.define_table("state"...., Field("namecountryid"))
db.state.namecountryid.compute = lambda row: str(row.country_id)+row.name
db.state.requires = IS_NOT_IN_DB(....)
Also, You can use validators for that, but you will need to do some selects
inside the custom validators.
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On Mon, Jun 11, 2012 at 2:08 PM, Anthony <abasta...@gmail.com> wrote:
> db.state.namecountryid.**requires = IS_NOT_IN_DB(db,
>> db.state.namecountryid)
>>
>
> Virtual fields are not for doing inserts/updates and therefore do not take
> validators.
>
> Anthony
>
