html - 如何将隐藏表格放入表格中？

Question

我是 HTML 和 RoR 的新手。我尝试在提交隐藏表单的表旁边有一个按钮。但由于某种原因，该按钮未显示在生成的 HTML 中。

<table class="centerBox">
  <h3>Search Results:</h3>
  <thead>
  <tr>
    <th>Name</th>
    <th>Code</th>
    <th>Subject_id</th>
  </tr>
  </thead>

  <tbody>
  <% @searchResults.each do |searchResult| %>
    <tr>
      <td><%= searchResult.name %></td>
      <td><%= searchResult.code %></td>
      <td><%= searchResult.subject_id %></td>
      <td>
        <% form_for(:enrollment, url: enroll_path) do |f| %>
          <div class="actions">
            <%= f.hidden_field(:enrollment, :course_name => searchResult.name)%>
            <%= f.hidden_field(:enrollment, :user_id => current_user) %>
            <%= f.submit "Enroll"%>
          </div>
        <% end %>
      </td>
    </tr>
  <% end %>
  </tbody>
</table>

生成的 HTML:

<tr>
      <td>Independent Study</td>
      <td>AAAS 98B</td>
      <td>1161-100</td>
      <td>
      </td>
</tr>

在网页上:

Answer 1

要使 erb 代码打印您调用的方法的输出，您需要对 <%= %> 标记使用 =，就像您对字段和提交按钮所做的那样。

<%= form_for(:enrollment, url: enroll_path) do |f| %>
  <div class="actions">
    <%= f.hidden_field(:enrollment, :course_name => searchResult.name) %>
    <%= f.hidden_field(:enrollment, :user_id => current_user) %>
    <%= f.submit "Enroll"%>
  </div>
<% end %>