On 23 Aug 2012, at 7:25 AM, Massimo Di Pierro <massimo.dipie...@gmail.com>
wrote:
> So now in trunk you can do:
>
> db = DAL(lazy_tables=True)
> db.define_table('person',Field('name'),Field('age','integer'),
> on_define=lambda table: [
> table.name.set_attributes(requires=IS_NOT_EMPTY(),default=''),
>
> table.age.set_attributes(requires=IS_INT_IN_RANGE(0,120),default=30),
> ])
>
> and the attributes will be set lazily. This is a good idea! Thanks Jonathan.
>
Clear something up for me, please. I was a little confused before about how
this was implemented, but I've read the code and it looks like what I proposed.
What I'm not following is the role of set_attributes. Is it simply to
facilitate the lambda? Is this equivalent?
def on_define(table):
table.name.requires = IS_NOT_EMPTY()
table.name.default = ''
table.age.requires = IS_INT_IN_RANGE(0,120)
table.age.default = 30
db = DAL(lazy_tables=True)
db.define_table('person', Field('name'), Field('age','integer'),
on_define=on_define)
--
