DataMapper ORM v1.8.2

[eluser]WanWizard[/eluser]
Sorry, my bad.

I should have written 'where_join_field' in that example. I'll change it. 'where_related' indeed always operates on the related table.

And it's correct that Datamapper aliases all tables, so when referring to a column in another table you should use the alias, not the table name.

I'm still trying to figure out what you're doing. Can you post the exact query you run, and the output of check_last_query()?