You could  also do something like:

query = (db.xxx.id==x.id) mainset = db(query) subquery = (db.xxx.
<http://db.xxx.id/>primary_residence == True)
subset = mainset(subquery)
rows = subset.select()

take a look here
<http://www.web2py.com/books/default/chapter/29/06/the-database-abstraction-layer?search=virtual+fields#Query--Set--Rows>


On Tue, Nov 3, 2015 at 3:14 PM, Massimiliano <mbelle...@gmail.com> wrote:

> What about?
>
> foo = db((db.xxx.id==x.id) & (db.xxx.primary_residence == True)).select()
>
> On Tue, Nov 3, 2015 at 2:53 PM, Mark Billion <markbill...@gmail.com>
> wrote:
>
>> This seems ugly:
>> foo = db(db.xxx.id==x.id).select()
>>         for a in foo:
>>             if a.primary_residence == True:
>>                 nine_b_count = 1
>> ......
>> Is there a way for me to select only the elements of foo that meet the
>> secondary test.  Something like foo.select(a.primary_residence == True) #I
>> know this is wrong
>>
>> --
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>
>
>
> --
> Massimiliano
>



-- 
Massimiliano

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