Opening email attachment with roo

Question

I need to manipulate xls files which are read from email attachments. Due to performance reasons I need to use the Roo gem. The problem here is passing the attachment to the Roo. Spreadsheet gem could read StringIO directly but Roo doesn't seem to have such capability. ( Is there any way to get Roo to accept StringIO objects in place of files? )

I have found this solution

attachment = mail.attachments.first
file = Tempfile.new(['attachment', '.xls'], :encoding => 'ascii-8bit')
file.write StringIO.new(attachment.body.decoded).read
excel = Roo::Excel.new(file.path)

But it involves writing a temporary file to the file system which I would like to get rid of.

Is there a way to create a virtual file?

Answer 1

没有更好的方法可以通过Roo从电子邮件附件中打开Excel。