adding params to link_to

gistfile1.txt

using link_to via AJAX to update quantities on a form ... here is the code that passes the new quantity amount ...

<%= link_to ' ^ ', line_item_path(line_item, :amount => 1), 
                      method: :put,
                      remote: true %>

NOTE - this will NOT work without the object (line_item) in the parenths with the :amount