Mail_form-显示验证错误消息

如何解决Mail_form-显示验证错误消息

如何在带有表单的页面上的表单中显示错误消息？ 是否有等效于errors.any的方法可以在页面上显示错误？ 还是有可能通过Rails中的html进行验证？

型号

class Email < MailForm::Base

    attribute :name,:validate => true
    attribute :email,:validate => /\A([\w\.%\+\-]+)@([\w\-]+\.)+([\w]{2,})\z/i
    attribute :message,:validate => true

    
    def headers
      {
        :subject => "Message sent from the form.",:to => "[e-mail]",:from => %("#{name}" <#{email}>)
      }
    end
end

en.yml

en:
  hello: "Hello world"
  errors:
    format: "%{message}"

    mail_form:
      errors:
         models:
            email:
               attributes:
                  name: 
                     blank: "Please enter your name."

index.html.erb

<h1 class="col-lg-4 offset-lg-4 title">Contact Form</h1>

<%= form_for @data,url: 'email#index',remote: true do |f| %>
<div class="container">
  <div class="row">

    <div class="col-lg-8 offset-lg-2">
      <%= f.label :name,class: "col-lg-4 offset-lg-4 form_text" %>
      <%= f.text_field :name,class: "col-lg-12" %>
    </div>

    <div class="col-lg-8 offset-lg-2">
      <%= f.label "Email",class: "col-lg-4 offset-lg-4 form_text" %>
      <%= f.text_field :email,class: "col-lg-12",type: 'email' %>
    </div>

    <div class="col-lg-8 offset-lg-2">
      <%= f.label "message",class: "col-lg-4 offset-lg-4 form_text" %>
      <%= f.text_area(:message,cols: 40,rows: 10,class: "col-lg-12") %>
    </div>

      <div class="col-lg-8 offset-lg-2">
      <%= f.submit "Send",class: "col-lg-2 mt-50 offset-lg-5" %>
  </div>

      </div>
    </div>

  <% end %>