Still got that error though...
AttributeError: 'str' object has no attribute 'tag'
2009/4/26 André van der Vlies <[email protected]>:
> Clear!
>
> On Sun, Apr 26, 2009 at 9:16 PM, Yarko Tymciurak <[email protected]> wrote:
>> There is a piece here that is dense, has caused some confusion and deserves
>> a comment:
>>
>> On Sun, Apr 26, 2009 at 1:32 PM, DolleDries <[email protected]>
>> wrote:
>>>
>>> Given the model for web2py-wiki:
>>>
>>>
>>> db.define_table('tag',
>>> db.Field('name'))
>>>
>>> db.tag.name.requires=IS_NOT_EMPTY()
>>>
>>> db.define_table('page',
>>> db.Field('uuid',length=128,writable=False,default=str(uuid.uuid4
>>> ())),
>>> db.Field('title'),
>>> db.Field('menu',length=128),
>>> db.Field('public','boolean',default=False),
>>> db.Field('active','boolean',default=True),
>>> db.Field('body','text'),
>>> # db.Field('tags','text'),
>>
>> # yarko prefers more "explicit" naming:
>>
>> db.Field("tag_ids, 'text'),
>>
>> # note: id's == multiple references;
>> # it's defined as text but holds a string of foreign keys, '|12|14|22|'
>> # this _could_ be done as a one-to-many table entry, eg: keys: field -
>> page; field - tag
>> # but this '|1|2|3|' is web2py implementation, an efficiency for when
>> this won't hold too many
>> # not sure what the trade off point is (Massimo could comment)
>> # ... perhaps a 1000 keys would do better with a separate table???
>>>
>>> db.Field('created_by',db.auth_user,default=who,writ#able=False),
>>> db.Field('created_on','datetime',default=now,writable=False))
>>>
>>> db.page.title.requires=IS_NOT_EMPTY()
>>> db.page.tags.requires=IS_IN_DB(db,'tag.id','%(name)s',multiple=True)
>>>
>>>
>>> Can somebody explain to to me what is meant by the last line???
>>>
>>> It seems to me this line has a diffenrent meaning: db.Field
>>> ('tags','text').
>>> I believe it should be somthing like: db.Field('tags', db.tag) or
>>> perhaps a SET or ENUM of tags...
>>>
>>> Put how is that produced dynamicly? Haven't found anything in the book
>>> or API yet..
>>>
>>>
>>
>>
>> >>
>>
>
>
>
> --
> --
> Andre van der Vlies <[email protected]>
> Certifiable UNIX engineer
> Homepage: http://vandervlies.xs4all.nl/~andre
> Books: http://www.lulu.com/andre14
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> --
> "Programming isn't a craft, it's an art."
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>
--
--
Andre van der Vlies <[email protected]>
Certifiable UNIX engineer
Homepage: http://vandervlies.xs4all.nl/~andre
Books: http://www.lulu.com/andre14
Key fingerprint = 397C 7479 67DB 9306 23DC B423 7B58 CD5A 6EFF 5CF8
--
"Programming isn't a craft, it's an art."
() ascii ribbon campaign - against html e-mail
/\ - against microsoft attachments
^[^#]
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