On Wednesday, February 10, 2016 at 5:01:52 PM UTC-5, Greg White wrote:
>
> Want a computed field to show whether or not a field value exists in 
> another table
>
> started with this...
>
> db.define_table(
>     'inventory',
>     Field('name'),
>     Field('qty', label='Quantity'),
>     Field('MatSize',label='Material Size'),
>     format = '%(name)s') 
>
> db.define_table(
>     'POrequest',
>     Field('name', 'reference requestor', label='Requestor'),
>     Field('JobNum', 'reference jobs', label='Job #'),
>     Field('description', 'text', notnull=True),    
>     Field('InInventory', compute=lambda r: r['description'] IN r[
> db.inventory.name]),  <<< this row right here is what I need help with
>     format = '%(name)s')
>

compute=lambda r: not db(db.inventory.name == r.description).isempty() 

Anthony

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