使用Rails将图像嵌入到电子邮件中的正确方法是什么？ [英] What is the right way to embed image into email using Rails?

问题描述

使用Rails将图像嵌入到电子邮件中的正确方法是什么？

What is the right way to embed an image into email using Rails?

推荐答案

我将Oksana的答案与自定义帮助程序方法，并使得以下功能很好地工作。

I combined the answer from Oksana with a custom helper approach and got the following to work quite nicely.

app / helpers / email_helper.rb

module EmailHelper
  def email_image_tag(image, **options)
    attachments[image] = File.read(Rails.root.join("app/assets/images/#{image}"))
    image_tag attachments[image].url, **options
  end
end

app / mailers / base_mailer.rb

class BaseMailer < ActionMailer::Base
  add_template_helper(EmailHelper)
end

app / mailers / my_mailer.rb

class MyMailer < BaseMailer

  def send_my_mail(email)  
    mail to: email, subject: "My Subject"
  end
end

然后，例如，我要将公司徽标附加到我要使用的电子邮件布局文件中

Then for example where I want to attach the company logo in my email layout file I would use

app / views / layouts / email.html.erb

<％ = email_image_tag（ company_logo.png）％>

请注意**选项使标签更具扩展性，但仅适用于> = 2的ruby。要使此工作在ruby中< 2您将不得不使用较旧的方式来处理关键字选项。

Note the **options makes the tag more extensible but it will only work in ruby >=2. To make this work in ruby < 2 you will have to use the older way of handling key word options.

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