On 5/11/07, Michael Lackhoff <[EMAIL PROTECTED]> wrote:
> I had to change a relationship from a simple ID to ID relationship to
> one that also includes a second ID.
> Worse still the second ID is not a column in one of the relationship
> partners but has to be taken from a record two steps up the hierarchy.
> Perhaps I will change the table to include the ID directly but for the
> time beiing this is what I tried:
You can only go one step in any relationship. (Many-to-many is a
special case where you can go two steps.) You need to make each
relationship in the "chain" separately.
> column_map => {
> leistung_id => 'positionsnr',
> # doesn't work:
> 'rezept.patient.praxis_id' => 'praxis_id',
> },
That will not work. The left-hand side of a column_map can only
contain the names of columns in the "local" (current) class.
-John
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