by the way, to be able in db admin
to have dropdown reference to entered records (trunk/branches)
I need to have
db.TreeStructure.parentID.requires=IS_IN_DB(db, 'TreeStructure.id')
but that is problem if I am creating the first (root) element
(as workaround I commented out the IS_IN_DB line for this task,
or could add it in code at some init stage)
but would it be hard to make a drop-down binding, only when there are records
and leave integer box if there are none..?
I have web2py 1.56.4 (but didn't notice in158 changelog address this issue)
On Fri, Mar 6, 2009 at 3:35 AM, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> Your suggestions works but it will not be enforced at the database
> level:
>
> I suggest instead
>
> db.define_table("TreeStructure",
> SQLField("name", "string",notnull=True, default=None),
> SQLField("parentID", "reference TreeStructure"))
>
> Massimo
>
> On Mar 5, 4:40 pm, DenesL <denes1...@yahoo.ca> wrote:
>> db.define_table("TreeStructure",
>> SQLField("name", "string",notnull=True, default=None),
>> SQLField("parentID", "integer"))
>>
>> db.TreeStructure.parentID.type="reference TreeStructure"
> >
>
--
Jurgis Pralgauskis
tel: 8-616 77613;
jabber: jur...@akl.lt; skype: dz0rdzas;
Don't worry, be happy and make things better ;)
http://sagemath.visiems.lt
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