tracks/app/views/todos/add_predecessor.js.erb

<% if !@saved
     if @predecessor.completed? -%>
  TracksPages.page_notify('error', "<%= t('todos.cannot_add_dependency_to_completed_todo') %>", 8);  
  $('#<%=dom_id(@todo)%>').html(html_for_todo());
<%   else -%>
  TracksPages.page_notify('error', "<%= t('todos.unable_to_add_dependency') %>", 8);
<%   end
   else -%>
  remove_successor_from_page();
  replace_updated_predecessor();
  regenerate_predecessor_family();
  <%= "show_in_tickler_box();" if source_view_is_one_of :project, :tag %>
  TracksPages.page_notify('notice', "<%= @status_message %>", 5);

function remove_successor_from_page() {
  <% # TODO: last todo in context --> remove context??
  -%>
  $('#<%=dom_id(@todo)%>').remove();
}

function replace_updated_predecessor() {
  $('#<%= dom_id(@predecessor) %>').html( html_for_predecessor() );
}

function show_in_tickler_box() {
  $("#tickler-empty-nd").hide();
  $('#tickler').append( html_for_todo() );
}

function regenerate_predecessor_family() {
<%
  parents = @predecessor.predecessors
  until parents.empty?
    parent = parents.pop
    parents += parent.predecessors -%>
    $('#<%= dom_id(parent) %>').html("<%= escape_javascript(render(:partial => parent, :locals => { :parent_container_type => parent_container_type })) %>");
<%end
-%>
}

function html_for_predecessor() {
  return "<%= escape_javascript(render(:partial => @predecessor, :locals => { :parent_container_type => parent_container_type })) %>";
}

<% end # if !@saved

# following js is needed in case of an error with dragging onto a completed action althoug
%>

function html_for_todo() {
  return "<%= escape_javascript(render(:partial => @todo, :locals => { :parent_container_type => parent_container_type })) %>";
}