ruby-on-rails-3 - Rails 3 - 回形针 - 电子邮件附件

Question

尝试在 Rails 3 中通过电子邮件发送回形针附件。

发票型号：

class Invoice < ActiveRecord::Base

has_attached_file :attachment,
:url => "http://server/app/attachments/:id/:style/:basename.:extension",
:path => ":rails_root/public/attachments/:id/:style/:basename.:extension"
validates_attachment_presence :attachment
validates_attachment_size :attachment, :less_than => 5.megabytes

end

account_mailer：

  def email_approver(invoice)
    @subject          = 'Invoice Approval Request'
    @body["invoice"]  = invoice
    #attachment  "application/octet-stream" do |a|
          #a.body = File.read(invoice.attachment.to_file.path)
          #a.filename = invoice.attachment_file_name
      #end
    @recipients = [invoice.approver_email, invoice.alternate_approver_email].compact
    @from             = "ADMIN"
    @sent_on          = Time.now
    @headers          = {}    
 end

错误：

NoMethodError (undefined method `filename=' for #<Mail::Part:0x00000002566dd0>):

有任何想法吗？谢谢！

Answer 1

你有没有尝试过这样的事情

attachments[invoice.attachment_file_name] = File.read(invoice.attachment.to_file.path)

?

Answer 2

这是一个老问题，但这是我的工作解决方案：

attachments[mymodel.attachment.filename] = File.read(mymodel.attachment.path)