Rails - Dec 2005 - Help with associations

Hello all!

I have the following models:

Document belongs to a Task and to a Documentgroup and I want to select the
Task that Document belongs to using a link where I can select the Task, but
I also want to allow the user to select the Documentgroup using in the same
way. How can I maintain the document state between these requests?

Here is the code:

Models:

class Document < ActiveRecord::Base
  belongs_to :task
  belongs_to :documentgroup
end

class Task < ActiveRecord::Base
end

class Documentgroup < ActiveRecord::Base
end



Views:

edit view:

<%= start_form_tag :action => "update" %>

<%= text_field_tag("name", @document.name) %>
<%= text_field_tag("description", @document.description) %>

<%= text_field_tag("task", @task.name) %>
<%= link_to "Select", :action => ''select_task''
%>

<%= text_field_tag("documentgroup", @documentgroup.name) %>
<%= link_to "Select", :action =>
''select_documentgroup'' %>

<%= submit_tag "Change", { ''name'' =>
''change''} %>

<%= end_form_tag %>


select_task view:

<table>

<% for task in @tasks %>
<tr><td><%= task.name %></td><td><%= link_to
"Select", :action => "edit",
:value => task.id %></td></tr>
<% end %>

</table>



select_documentgroup view:

<table>

<% for documentgroup in @documentgroups %>
<tr><td><%= documentgroup.name %></td><td><%=
link_to "Select", :action =>
"edit", :value => documentgroup.id %></td></tr>
<% end %>

</table>


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