Form_tag question

I have an invoicing index page, with a table of invoices to be processed. So, basically, I need 1 field I’d like to update [for each record that needs to be processed]. I have the following form in one of the table details…

 <%= form_tag invoicing_path do %>
                <%= text_field_tag :invoice %>
                <%= submit_tag "Save" %>
              <% end %>

No route matches {:action=>"update", :controller=>"invoicing"} missing required keys: [:id]

but I can’t seem to figure out how to pass the id into this form?

any suggestions?

If you are updating an invoice, you must pass your id on the route, it would be good if you show your route here to update, but this should work

 <%= form_tag invoicing_path(@invoice) do %>
                <%= text_field_tag :invoice %>
                <%= submit_tag "Save" %>
              <% end %>