I think I got it by reading the recursive select section. THanks!!!



On Tuesday, July 9, 2013 3:55:04 PM UTC-7, Anthony wrote:
>
> Would help if you showed your data models. Presumably the db.product table 
> includes a reference field that references this table. That allows you to 
> do a recursive select in reverse (see the last part of this 
> section<http://web2py.com/books/default/chapter/29/06#Recursive-selects>). 
> When you select a record from this table (let's call the record "r"), then 
> r.product is a LazySet object that refers to all the records in db.product 
> that have a reference to this particular record. You can then use that as 
> any DAL Set object. If you need to further filter the set, you can add a 
> condition by doing r.product(some_query), and if you want to select the 
> records, you can do r.product.select(). Assuming there are potentially 
> multiple product records that reference a given record in this table, it's 
> not clear how you would want to use those records to construct the 
> "represent" output for the field.
>
> Anthony
>
> On Tuesday, July 9, 2013 6:32:33 PM UTC-4, greenpoise wrote:
>>
>> I am getting this error. My grid works fine but when I try to log into 
>> the database administration tool, I get this error. Any clue?
>>
>> File 
>> "/home/xxx/Applications/web2py/applications/APPLICACION/models/db_catalog.py"
>>  
>> <http://127.0.0.1:8000/admin/default/edit/MOSAIC_POSx2/models/db_catalog.py>,
>>  line 72, in <lambda>
>>     Field('supptile',represent=lambda id, r: '%s%s'% 
>> (r.supplier.suppliercode,r.product.tilename)),
>> AttributeError: 'LazySet' object has no attribute 'tilename'
>>
>>
>>
>>

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