Question

我有这个表单，并且所有元素都使用type =“hidden”呈现，我不知道为什么会发生这种情况。

  <%= form_for(:session, url: sessions_path) do |f| %>
    <%f.text_field :username, :value => "Enter your user name", :class => "username-label" %>
    <span class="email-icon"></span>
    <% f.text_field :password, :value => "Enter your password", :class => "password-label" %>
    <% f.submit "LOG IN", :class => "login-button" %>
  <% end %>

Answer 1

使用<%，您只是执行帮助程序。您需要使用<%= ... %>输出这些帮助程序调用的结果：

<%= form_for(:session, url: sessions_path) do |f| %>
  <%= f.text_field :username, :value => "Enter your user name", :class => "username-label" %>
  <span class="email-icon"></span>
  <%= f.text_field :password, :value => "Enter your password", :class => "password-label" %>
  <%= f.submit "LOG IN", :class => "login-button" %>
<% end %>

Rails ERB表单字段呈现隐藏

1 个答案: