Rails部分不通过ajax调用呈现

Question

当用户点击按钮销毁两个产品之间的关系时，我试图通过ajax呈现部分内容。销毁动作有效，但我无法将部分渲染工作。

部分在产品的编辑页面上呈现：

edit.html.erb

<div id="relationship_form">
  <%= render "relationships", product: @product %>
</div>

_relationships.html.erb

<%= render "unrelate", relationship: relationship %>

_unrelate.html.erb

<%= form_for(relationship,html: { method: :delete },remote: true) do |f| %>
  <%= f.submit "Remove", class: "btn btn-small" %>
<% end %>

relationships_controller.html.erb

def destroy
...
 respond_to do |format|
  format.html { redirect_to edit_product_path }
  format.js
 end
end

destroy.js.erb

$("#relationship_form").html("<%= escape_javascript(render :partial => 'products/relationships', :locals => {:product => @product}) %>");

我已经检查过ajax调用是否通过插入警告进入destroy.js.erb，所以javascript中一定有错误？

更新：

我通过将_unrelate partial中的表单移动到_relationship partial来实现它。仍然不太清楚它为什么会起作用。

_relationships.html.erb

<%= form_for(relationship,html: { method: :delete },remote: true) do |f| %>
  <%= f.submit "Remove", class: "btn btn-small" %>
<% end %>