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Editorial Team
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Asked: 2026-05-22T20:47:03+00:00

I’m developing a Rails 3 application, and I currently I would like to add

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I’m developing a Rails 3 application, and I currently I would like to add an image as an attachment into an email.

I’m doing the following right now:

class CouponMailer < ActionMailer::Base
  default :from => "name@domain.com", :content_type => "multipart/mixed"

  def send_coupon(recipient, coupon)
    @coupon = coupon
    @recipient = recipient

    attachments.inline["#{coupon.picture.title}"] = File.read(File.join(root_url, coupon.picture.url))

    mail(:to => recipient.email, :subject => "a subject")
  end
end

The image I want has been uploaded from my RefineryCMS application, and when I copy the url that I get when I do File.join(root_url, coupon.picture.url) and paste it in the browser, I can see the imagen, but when I run the application I get the following error:

No such file or directory - http://localhost:3000/system/images/BAhbBlsHOgZmIiwyMDExLzA1LzI0LzE3XzQ4XzUxXzcxNF9tYWluX2ltYWdlMi5qcGc/main_image2.jpg

Any ideas?

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1 Answer

  1. Editorial Team

    It looks like RefineryCMS is using Dragonfly for file uploads. I believe you want to call .path on your picture to retrieve a file system path. Probably something like so:

    attachments.inline["#{coupon.picture.title}"] = File.read(coupon.picture.file)

    Have a look at the documentation for more info. You should find what you need on the General Usage page.

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