Rails - Aug 2006 - autocomplete and one to many relationships

Hello, 

I am trying to get autocomplete to save record ID.

I have to tables:

Students and Departments.

Students table has department_id field.

Department table has 2 fields: id and name

I set up belongs_to: and 
has_many: entries in the models of each.

In my _form.rhtml I have the autocomplete line that is working:

<%= text_field_with_auto_complete :department, :name %>

ie. If I start typing, I get a pull-down like entry populated from
my

department table.

I would like to save DEPARTMENT_ID in the student record. 

How to achieve it? 

Thanks!


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