Due to external constraints, I need to define two tables that are actually
siblings and a third table's field that can choose from any of said tables.
e.g.:
db.define_table('melon')
db.define_table('watermelon')
I need the third table's field to be a reference to either of the two first
tables.
Is there a way to define this in terms of field type and validators ?
I was thinking along the lines of:
db.define_table('my_table', Field('fruit_id', type=???,
requires=IS_IN_DB(db, db.melon, _or=IS_IN_DB(db, db.watermelon)))
or maybe:
db.define_table('my_table', Field('fruit_id', type=???,
requires=any([IS_IN_DB(db, db.melon), IS_IN_DB(db, db.watermelon)]))
But of course it doesn't work...
How can I work around this issue ?
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