Heh. OK, more detail. The *problem* is that when I generate the database
(using Turbogears, so automatic via tg-admin sql create), I get told I have
a circular dependency between Page and Story. Do I really? Is this
something I have to worry about?
Sorry for the extra email.
Mike
On Sat, Jan 24, 2009 at 6:07 PM, Michael LeSauvage <the.el....@gmail.com>wrote:
> All help appreciated. The following is my data model. The idea here is
> that a *Story* can be comprised of many pages. One, and only one, of
> those pages may be the starting point of the story. I attempted to model
> this via a MultipleJoin (pages in a story), a ForeignKey(to map to a single
> page for a story), and a link back from the Page using a ForeignKey.
>
> class Story(SQLObject):
> """
> Contains the first page, and meta about a story.
> """
> title=UnicodeCol(alternateID=True, length=100)
> summary=UnicodeCol()
> pages=MultipleJoin('Page')
> first_page=ForeignKey('Page', default=None) #without this, model
> works
> #alternate, but feels like a kludge: first_page=IntCol(default=0)
>
> class Page(SQLObject):
> """
> A page in a story.
> """
> short_title=UnicodeCol(alternateID=True, length=20)
> text=UnicodeCol()
> story=ForeignKey('Story', default=None)
>
>
> I clearly don't understand what's going on under the hood. Should I just
> be using an IntCol as I indicated?
>
> Mike
>
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