空的参数 - RoR

Question

我有下一个观点

new.html.erb

<%= form_tag ({controller: "nodes", action: "new"}), :id => "users_search" do %>
  <%= text_field_tag :search, params[:search], :autocomplete => 'off' %>
  <div id='users'>
    <%= render 'users' %>
  </div>
<% end %>
<%=form_for @node do |f| %>
  **<%= f.hidden_field :parent_id %>**
  <%= f.hidden_field :user_id, :value => current_user.id  %>
  <%= f.hidden_field :ocuped, :value => true %>
  <%= f.text_field :custom_node_name %>
  <%= f.check_box :terms_of_service,{}, true,false %>
  <%= f.submit "Pagar", class: "button postfix" %>
<% end %>

nodes_controller.rb

def new
@node = Node.new  
@parent = Node.search(params[:search]).where(:ocuped => true)

if not @users.nil?
  if @users.count == 1
    @node_incomplete = @users.nodes.where(" sons < ? AND ocuped = ?",2,true).first
  else
    @node_incomplete = @users.first.nodes.where(" sons < ? AND ocuped = ?",2,true).first
  end
  @son_of_incompleted_node = @node_incomplete.children
end

respond_to do |format|
  format.html
  format.js { render }
end

端

_users.html.erb

<% if not @parent.nil? %>
<% @parent.each do |u| %>
    <ul class="inline-list">
        <li class="img-simple" style = "text-align: center; background-image: url('<%= u.user.profile_img %>')"></li>
            <li style="display:table-cell; vertical-align: middle;"><h6><%= u.user.name %></h6><p><%= u.user.email %></p></li>
    </ul>
    **<% params[:parent_id] = u.id %>**
<% end %>

new.js.erb

$('#users').html('<%= escape_javascript(render("users")) %>');

的application.js

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require foundation
//= require_tree .

$(function() {
  $("#users_search input").keyup(function() {
    $.get($("#users_search").attr("action"), $("#users_search").serialize(), null, "script");
return false;
  });
});

node.js.cofee

jQuery ->
  # Ajax search on keyup
  $('#users_search input').keyup( ->
$.get($("#users_search").attr("action"), $("#users_search").serialize(), null, 'script')
false
  )

一切正常，但是当我发送第二个表单时，参数“parent_id”为空，并创建值为“parent_id = nil”的节点。

Image