Ruby on rails Carrierwave:以嵌套形式传递用户\u ID

将用户id保存到数据库表文档时出现问题。现在，当我检查rails服务器登录POST时，它没有发送任何与文档的用户id相关的内容

projects\u controller.rb

def new_step_3
  project = Project.new
  @project.documents.build
end

<%= form_for @project, :html => {:multipart => true} do |f| %>
  <%= f.text_field :title %>
  <%= f.text_field :description %>

  <%= f.fields_for :documents do |builder| %>
    <%= builder.file_field :title %>
  <% end %>

  <%= f.text_field :skills %>
  <%= f.submit 'Post Project' %>
<% end %>

新建步骤3.html.erb

def new_step_3
  project = Project.new
  @project.documents.build
end

<%= form_for @project, :html => {:multipart => true} do |f| %>
  <%= f.text_field :title %>
  <%= f.text_field :description %>

  <%= f.fields_for :documents do |builder| %>
    <%= builder.file_field :title %>
  <% end %>

  <%= f.text_field :skills %>
  <%= f.submit 'Post Project' %>
<% end %>

{:multipart=>true}do | f |%>

您是否在项目模型中为文档包含行

接受嵌套属性？

是。以及建立关联。