STI is a good approach, but my "subtables" have additional attributes
and afaik this isn't supportet by STI, is it?

For example:

user << Base
  id
  firstname
  lastname
  address
end

employee << user
 <all of the above and additionally:>
  salary
end

On 22 Mai, 10:41, Colin Law <[email protected]> wrote:
> On 22 May 2011 09:37, Wolfgang <[email protected]> wrote:
>
>
>
>
>
>
>
>
>
> > Hello Guys,
>
> > does anybody know wheter RoR is able to implement a generalisation of
> > a database? I didn't find any solution for that on the internet.
>
> > Example
>
> > Person : Customer
>
> > or
>
> > Person : Employee
>
> > in the database such a generalisation is characterized by having the
> > same PK in Customer and Person or Employee and Person!
>
> Would Single Table Inheritance (STI) dowhat you want?
>
> Colin

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