Yes,* *I didn't read far enough into the documentation..... Ooopsies!
On Sunday, September 15, 2013 6:33:18 PM UTC-7, Massimo Di Pierro wrote:
>
> Do you mean?
>
> db.define_table('Certificate',db.Pilot,...)
>
>
> On Sunday, 15 September 2013 20:25:38 UTC-5, BigBaaadBob wrote:
>>
>> Suppose I have a "Person" table with all the typical stuff:
>>
>> db.define_table('Person',
>> Field('FirstName','string', length=40, notnull=True),
>> Field('MiddleName','string', length=40),
>> Field('LastName','string', length=40, notnull=True),
>> Field('Nickname','string', length=40),
>> Field('DateOfBirth','date', notnull=True),
>> Field('EmployeeId','string', length=10, unique=True,required
>> =True, notnull=True),
>> format=lambda r: Fullname(r.FirstName, r.MiddleName, r.
>> Nickname, r.LastName)
>> )
>>
>>
>> And suppose I have various special kinds of people, for exampe pilots,
>> who have things that normal people don't have, like certificates or whatnot.
>>
>> db.define_table('Pilot',
>> Field('PersonId', db.Person),
>> )
>>
>> db.define_table('Certificate',
>> Field('PilotId', db.Pilot),
>> Field('TypeId', db.CertificateType),
>> Field('Expires','date'),
>> Field('CertificateLimitations','string', length=100),
>> )
>>
>>
>> What's the proper way to do this kind of thing in the DAL?
>>
>> For example:
>>
>>
>> 1. The Pilot format should be the same as the Person format, and I'd
>> like to do that without duplicating lots of tricky lambda stuff. (BTW,
>> Virtual fields seem worthless for use in "format"!)
>> 2. Accessing a Pilot's Person attributes should be as easy as
>> accessing the Pilot's Attributes.
>> 3. Requires (not shown above) should work for Pilots the same way as
>> they work for Persons.
>> 4. Etc.
>>
>> Have I strolled way off the beaten path into the muddy weeds?
>>
>>
--
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