I'm staying away from STI because I want to be able to add additional
asset types over time, none of which share attributes with other
assets. So - with STI, I could end up with a table that has hundreds
of columns.

On Mar 3, 1:13 pm, Colin Law <[email protected]> wrote:
> On 3 March 2011 21:10, Yoram <[email protected]> wrote:
>
> > I'm struggling with the following problem:
>
> > I have a class, call it 'School'.
> > An instance of School can have all sorts of assets, such as 'Books',
> > 'Tables', 'Chairs', 'Teachers'.
> > Each of these asset types is modeled by it's own model and has a
> > corresponding table in the db. So, there is a table for 'Chair,
> > another for 'Teacher' and so on.
> > In summary, in the abstract, each school has_many assets and each
> > asset belongs_to a school.
>
> Have you looked at Single Table Inheritance?
>
> Colin

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