Hard to help without knowing what the error is.
On Wednesday, July 10, 2013 1:35:01 AM UTC-4, greenpoise wrote:
>
> AGh..tilename was in it, I just didnt include it in this thread:
>
>
> db.define_table('supplier',
> Field('suppliercode'),
> Field('suppliername'),
> format='%(suppliercode)s')
> db.supplier.suppliercode.requires = IS_NOT_IN_DB(db,db.supplier.
> suppliercode)
> db.supplier.suppliername.requires = IS_NOT_IN_DB(db,db.supplier.
> suppliername)
>
>
>
> db.define_table('series',
> Field('supplier','reference supplier'),
> Field('seriesname'),
> Field('seriesdescription'),
> Field('description'))
>
>
> db.define_table('product',
> Field('series', 'reference series'),
> Field('supptile',represent=lambda id, r: '%s%s'% (r.supplier.
> suppliercode,r.tilename)),
> Field('tilename'),
> Field('description'),
> Field('conversiontype'),
> Field('inactive','boolean'))
>
>
> controller function:
>
> grid = SQLFORM
> <http://127.0.0.1:8000/examples/global/vars/SQLFORM>.grid(db.series,left
> =[db.series.on(db.series.id==db.product.series),db.supplier.on(db.supplier.id==db.series.supplier)],fields=[db.supplier.suppliercode,db.product.supptile,db.product.tilename],
> headers = {'supplier.suppliercode':
> 'SUPPLIERCODE','series.supptile':'ITEMCODE','product.tilename':'REORDER#'})
>
>
>
> As it is, the grid works as I want. I get the supptile which is a
> concatenation of the suppliercode and tilename. When I go to database
> administration, which I use, the product table prompts me an error. Agh!!!
> Thanks so much Anthony!
>
> **I hope I didnt miss anything**
>
>
>
> On Tuesday, July 9, 2013 10:02:00 PM UTC-7, Anthony wrote:
>>
>> Can you show your new code? So far, all we see is r.product.tilename,
>> which won't work because r.product is a LazySet object -- you have to do
>> r.product.select().first().tilename, or something along those lines (though
>> that will just give you the tilename of the first product that references
>> the record). Also, in the models you have shown, there is no tilename field
>> in the db.product table.
>>
>> Anthony
>>
>> On Tuesday, July 9, 2013 11:34:27 PM UTC-4, greenpoise wrote:
>>>
>>> I re-opened this as I keep getting the same error.
>>>
>>>
>>>
>>>
>>> On Tuesday, July 9, 2013 4:12:49 PM UTC-7, greenpoise wrote:
>>>>
>>>> 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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