Rails - Mar 2009 - how to create an association through a Drag & Drop

I have 3 tables A, B and C

Table A has_many Cs
Table B has_many Cs
so C contains 2 foreign keys, A_id and B_id)

I have a screen with 2 lists : A list and B list
I would like to be able to create a C record by simply dropping an A
element on a B element

I tried this :

<ul id="A_list">
  <% for A in @As %>
	<% draggableA_id = "draggableA_#{A.id}" %>
	<li id=<%= draggableA_id %> class="draggableAs">
	   <% A.name %>
        </li>
        <%= draggable_element(draggableA_id, :revert=>true) %>
  <% end %>
</ul>

<ul id="B_list">
  <% for B in @Bs %>
       <% droppableB_id = "droppableB_#{B.id}" %>
       <li id=<%= droppableB_id %> class="droppableBs">
           <%= B.name %>
      </li>
      <%= drop_receiving_element(droppableB_id,
			:accept => "draggableAs",
			:with   => "''draggableA='' +
(element.id.split(''_'').last())",
			:url    => {:action=>:create_C}
			)%>
  <% end %>
</ul>

It drops OK, but :
1) The problem is, the ":with" parameter takes only one key. How do I
convey the second one ? It doesn''t seem to accept a hash...
2) When I debug, I see that the draggableA_id that I drop is always
the last draggableA_id, whichever draggableA I drag...


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On Mar 17, 3:28 pm, Sacredceltic
<sacredcel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> It drops OK, but :
> 1) The problem is, the ":with" parameter takes only one key. How
do I
> convey the second one ? It doesn''t seem to accept a hash...
There''s some examples of the usage of :with here:
http://www.spacevatican.org/2008/5/17/with-or-without-you-link_to_remote-s-mysterious-parameter

(it''s mostly about link_to_remote but that doesn''t matter)

Fred
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