ruby-on-rails - ActionMailer在文本邮件程序中未显示空格

Question

我有一个应该发送此文件的ActionMailer Controller :

/user_mailer/welcome_email.text.erb

这是文件的(样本)内容:

Welcome to znood.com, <%= @user.name %>

You have successfully signed up to znood.com,
Your username is: <%= @user.email %>.

To login to the site, just follow this link: <%= @url %>.

Thanks for joining and have a great day!

The Znood Team

[编辑]
这是 Controller 中的代码:

def sendmail
        @user = User.first
        UserMailer.welcome_email(@user).deliver
        render "user_mailer/welcome_email.text"
        #render the file to see what we're supposed to send
end

这是UserMailer

 def welcome_email(user)
    @user = user
    @url  = "http://znood.com/"
    mail(:to => user.email, :subject => "Welcome to Znood!") 
  end

这是我收到的电子邮件:

Welcometoznood.com,AbdoAchkarYouhavesuccessfullysigneduptoznood.com,Yourusernameis:blabla.Tologintothesite,justfollowthislink:http://znood.com/.Thanksforjoiningandhaveagreatday!TheZnoodTeam

有什么线索如何包括空格，回车符和换行符？

[编辑]
安装letter_opener gem之后，我在控制台中看到以下内容:

----==_mimepart_4ea9882a2735c_1c782d964bc18193

Date: Thu, 27 Oct 2011 19:34:50 +0300

Mime-Version: 1.0

Content-Type: text/plain;

 charset=UTF-8

Content-Transfer-Encoding: 7bit

Content-ID: <4ea9882a2d8ee_1c782d964bc18277@lenovo-PC.mail>



Welcometoznood.com,AbdoAchkarYouhavesuccessfullysigneduptoznood.com,Yourusername
is:blabla.Tologintothesite,justfollowthislink:http://znood.com/.Thanksforjoiningandhaveagreatday!TheZnoodTeam

我尝试更改“Content-Transfer-Encoding” header ，但它们似乎没有变化。我也尝试为其设置默认值。看起来我们陷入了7位编码的困境。

[编辑]
另一个应该帮助我们发现问题的方法是，我尝试将以下参数传递给mail函数，以查看文件渲染器是否有问题:

   mail(:to => user.email, :subject => "Welcome to Znood!") do |format|
        #format.text(:content_transfer_encoding => "base64")
        format.text { render :text => "Hello there!" }
    end

“你好呀!”也出来整理。

然后，我尝试使用下面的代码来确定是引起错误的是渲染还是邮件功能。

mail(:to => user.email, :subject => "Welcome to Znood!") do |format|
        format.text { "hello there!" }
end

还出来整理。

Answer 1

默认情况下，邮件发送程序应该发送文本电子邮件-这很可能在客户端发生。真正的解决方案是同时具有文本和HTML模板(或者通过技巧(或只是Markdown))，如果它们同样简单，则对它们使用相同的模板。