On Monday, April 16, 2018 at 11:47:28 AM UTC-4, Leonel Câmara wrote:
>
> Note that in web2py you can actually do something like this:
>
> db.define_table('tag', Field('name'))
>
> db.define_table('debate'. Field('title'))
>
> db.define_table('debate_tag', Field('tag', 'reference tag'),
> Field('debate', 'reference debate'))
>
> Then say you want to know the tags debate with id 1 has
>
> db.debate[1].debate_tag.select()
>
Also, note that db.debate[1].debate_tag is a DAL Set object, which can be
called and passed an additional query to further refine the results:
db.debate[1].debate_tag((db.debate_tag.tag == db.tag.id) & (db.tag.name.
startswith('a')).select(db.tag.name)
Anthony
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