Rails 3.1 一个表单上的多个对象 [英] Rails 3.1 multiple objects on one form

问题描述

我查看了很多关于将多个对象放在一个表单上的问题，但它们似乎已经过时了.

I've checked out a lot of questions for putting multiple objects on one form, but they seem to be out of date.

我有一堆用户对象:

  def index
    @users = User.all
    @user = current_user
  end

我需要在表单中编辑.他们都有将在表单上编辑的角色.表单以部分形式呈现，没有显示任何内容，只是管理表单"纯文本.

that I need to edit in a form. They all have roles which will be edited on the form. The form is rendered in a partial, and nothing shows up, just 'admin form' plaintext.

users/_admin.html.erb
admin form
<% form_for "user[]", :url => users_path do |f| %>
<ul>
  <li class="layout">
    <div class="header"><h2>Users</h2></div>
    <table>
      <thead>
          ...
      </thead>
      <tbody>
        <% @users.each do |user| %>
          <% puts "USER #{user}" %>
            <tr>
              <td><%= f.check_box(:editor) %></td>
              <td><%= f.check_box(:admin) %></td>
              <td><%= user.first_name %> <%= user.last_name %></td>
              <td><%= user.email %></td>
            </tr>
        <% end %>
      </tbody>
    </table>
  </li>
</ul>
<%= submit_tag "Save"%>
<% end %>

只呈现明文，但没有形式.关于如何解决它的任何想法?我已经尝试了这些帖子中的建议:one 两个 三个，但它们已经过时了.

Just the plaintext is rendered, but no form. Any ideas on how to fix it? I've tried the suggestions in these posts: one two three, but they're out of date.

谢谢.

推荐答案

你需要在 Rails 3.1 中使用 <%= .. %>:

You need to use <%= .. %> in Rails 3.1:

<%= form_for "user[]", :url => users_path do |f| %>

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