rails - 将 xls 文件附加到电子邮件

Question

我创建了一个生成 xls 文件的代码，然后我将它传递给 Mailer 以将其作为附件发送。但是，我一次又一次地遇到同样的错误：

TypeError: no implicit conversion of Spreadsheet::Workbook into String

或者

NoMethodError: undefined method `length' for #<Spreadsheet::Workbook:0x007fe937e4fe80>

我的代码是：

def xls_mailer (data)
attachments['HelloWorld.xlsx'] = data
mail(subject: "Hi", to: @gmail.email)
end

***data - 是我传递给此方法的 xls 文件。

谢谢前面的各位，

Answer 1

Action Mailer 希望您向它传递一个 File-like object as an attachment, but your code's passing it the spreadsheet data directly. Fortunately, Ruby has a class called StringIO，我们可以使用它来将我们的电子表格转换成类似于 File 的东西：

def xls_mailer (spreadsheet)
  spreadsheet_file = StringIO.new
  spreadsheet.write(spreadsheet_file)
  attachments['HelloWorld.xls'] = spreadsheet_file
  mail(subject: "Hi", to: @gmail.email)
end

Answer 2

好的伙计们，我找到了答案。代码应该是这样的：

 spreadsheet_file = StringIO.new
 data.write(spreadsheet_file)
 attachments['HelloWorld.xls'] = spreadsheet_file.read

Answer 3

下面的代码块很有魅力。我试过这个，在一个工作应用程序中使用。

def send_excel_report(file_name, emails, subject, email_content, file_path, bcc_emails = [])

    attachments["#{file_name}.xls"] = File.read(file_path)

    mail(to: emails, subject: subject, from: "my_email@gmail.com", bcc: bcc_emails) do |format|
      format.html { render :partial => "users/mail_body"}
    end
  end

仅供参考：我使用电子表格 gem 创建了 excel

rails - 将 xls 文件附加到电子邮件

rails - attach xls file to email

excel

xls

ruby-on-rails

spreadsheet