I would like to setup a nested form using a map. The form_for and to_form accept a map and this works for a single level form.

%{"name" => "fred"} |> Phoenix.Component.to_form() # this works and allows editing the name field using html form.

but would I expect the following to work?

%{"name" => "fred", "addresses" => [
%{"street" => "12342 S. Park" },
%{"street" => "1 N. Dump Rd" },
]} |> Phoenix.Component.to_form() # ???

I am trying to build up a map that has parent with multiple children. User would have a “add more” button to add another address. I have this working using changeset and associations, but have not seen case where this works with maps.