DataMapper ORM v1.8.2

[eluser]tarciozemel[/eluser]
Join field value in a many to many relationship save

Hi, folks!

I have a company and email_type models. In the company create form, it's possible to add how many emails the user wants. The data is stored in DB in a table with the fields: "id", "company_id", "email_type_id" and "email" (the value, itself).

As showed in this image, the type of email is passed as the value of combobox and, the "email" itself, it's typed (duh).

So, my question is: how, in the company save() method, can I save that many emails relationships in one shot WITH their respective join values?