Contact:Class 的未定义局部变量或方法“email”

Question

我想使用 ruby mail_form 和 Heroku Sendgrid 来允许用户给我发送电子邮件。我在 apps/models/contact.rb

中设置了以下联系人 class

class Contact < MailForm::Base

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

 def headers 
 {
   :subject => "Contact Form",
   :to      => "example@email.com",
   :from    => %("#{name}" <#{email}>)
 } 
 end
end

但是，当我访问设置表单的页面时，收到以下错误消息：

undefined local variable or method `email' for Contact:Class

注释掉我的联系人 class 中定义的电子邮件属性会在后续属性 message: 和 nickname: 中产生类似的错误

下面是我的联系人控制器，contacts_controller.rb

class ContactsController < ApplicationController

 def new
   @contact = Contact.new
 end

 def create
   @contact = Contact.new(params[:contact])
   @contact.request = request
   if @contact.deliver
     flash.now[:error] = nil
   else
     flash.now[:error] = "Oops! There was an error."
     render :new
   end
 end

end

还有我的表格，new.html.erb

<% provide(:title, "Contact") %>
<h1>Contact</h1>
<%= form_for @contact do |f| %>
<%= f.label :name %><br>
<%= f.text_field :name, required: true %>

<br>

<%= f.label :email %><br>
<%= f.text_field :email, required: true %>

<br>

<%= f.label :message %><br>
<%= f.text_area :message, as: :text %>

<div class="hidden">
<%= f.label :nickname %><br>
<%= f.text_field :nickname, hint: "Leave this field blank." %>  
</div>

<%= f.submit "Send Message", class: "btn" %>
<% end %>
<ul class="pager">
<li><a href="<%= blog_path %>">Previous</a></li>
</ul>

如有任何帮助或建议，我们将不胜感激！

Answer 1

您在 from 选项中省略了双引号。

 def headers 
 {
   :subject => "Contact Form",
   :to      => "example@email.com",
   :from    => %("#{name}" <#{email}>)
 } 
 end

Contact:Class 的未定义局部变量或方法“email”

undefined local variable or method `email' for Contact:Class

ruby

forms

ruby-on-rails

mail-form

sendgrid-rails