Philip Aylesworth writes:
I am trying to get a list of unique values for one particular meta_type. The uniqueValuesFor() works great but is there a way to get unique values for a subset of data such as meta_type='car' then uniqueValuesFor('make') would list the makes of cars but not of toasters? The "uniqueValuesFor" is an artifact of the way indexes are implemented: a mappings. They map index terms to lists of objects indexed under the corresponding term. Most mappings have a "keys()" method. It gives the "uniqueValuesFor".
That said, if you want to have "uniqueValuesFor" a subset of the catalog, you cannot use this "keys()" method. You must do it yourself: Select the objects you want, build a dictionary mapping the attribute you are interested in to something (say 1) and use the "keys()" method of this dict. Something like 3 to 5 lines in a PythonScript. Dieter