Rails - Feb 2006 - Instantiating multiple child objects

Hi,

I''ve been tinkering a bit with Ruby lately, and is truly amazed by its
automation, however some of it is a bit arcane for a newbie to
understand :|

Let''s say for instance I have a object Person which has_many
VehicleRegistrations, and I want to have a form that would enable me to
instantiate many VehicleRegistrations at once.

So supposing my form enables 2 vehicleregistrations to be entered
alongside with the fields for Person, do I use something like

<%= text_field ''Person.VehicleRegistrations[]'',
''licenseNumber'' %>
<%= text_field ''Person.VehicleRegistrations[]'',
''vehicleManufacturer'' %>
<%= text_field ''Person.VehicleRegistrations[]'',
''vehicleMake'' %>

<%= text_field ''Person.VehicleRegistrations[]'',
''licenseNumber'' %>
<%= text_field ''Person.VehicleRegistrations[]'',
''vehicleManufacturer'' %>
<%= text_field ''Person.VehicleRegistrations[]'',
''vehicleMake'' %>

And hope that formTagHelper will be smart to realise that Person has a
has_many relationship with VehicleRegistrations and munge in the field
values for the array of VehicleRegistration?

Thanks
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