Re: [SQLObject] Superset inheritence

[Ian B. <ia...@co...>]

This is covered in the FAQ:
   http://sqlobject.org/docs/FAQ.html#how-does-inheritance-work

On Wednesday, October 22, 2003, at 05:21 AM, John Baker wrote:
> Hello,
>
> I come from the world of Java and 'Objectmatter' 
> (www.objectmatter.com). I'm
> rather fond of Objectmatter, and it supports superset mappings rather 
> nicely.
>
> If I wanted to model the following using SQLObject, is it possible?
>
> class Area (SQLObject):
>   address = StringCol()
>
> class House (Area):
>   someField = StringCol()
>
> class Office (Area):
>   department = IntCol()
>
> So I had tables Area, House and Office created, where House and Office 
> had a
> foreign key to a row in Area. Therefore inserting an Office would mean 
> I had
> one row in Area and one row in Office inserted. This then means I can 
> have a
> collection of Areas, and not care whether they are a House or an 
> Office.
>
> I've found SQLObject to create a table for House and Office using the 
> above
> example, but put the address field in both tables and not create an 
> Area
> table.
>
> Thanks
>
>
> John
>
> -- 
> John Baker, Senior Developer, TEAM.
> http://www.teamenergy.com
> Views expressed in this mail are my own.
>
>
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--
Ian Bicking | ia...@co... | http://blog.ianbicking.org