In the online doc on computed field, the computed fields uses a field in
the current table, and not in another table.
I modified the one-to-many example by adding a 'total_items' field on
person. If I want 'total_items' to be the sum of all items the person
currently has, and this field should be updated when an inserted/deleted
'thing' for this person happens, what should computed be?
>>> db.define_table('person',
Field('name'),
Field('total_items', 'integer', compute=#lamdba r: r.??),
# what should go here?
format='%(name)s')
>>> db.define_table('thing',
Field('name'),
Field('owner_id', 'reference person'),
format='%(name)s')
--
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)
---
You received this message because you are subscribed to the Google Groups
"web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
