Rails Rename tempfile

Question

I am using roo-rb for accessing the uploaded files. My code is like this:

s = Roo::Excelx.new(params[:upload][:file].tempfile.path)

But I am having problem with it because the generated tempfile has no extension and I'm having this exception:

.../AppData/Local/Temp/RackMultipart20150216-10192-13yn50s is not an Excel-xlsx file

Is there a way to rename the tempfile.path so that it will have a proper extension (xlsx)? Or is there a more elegant way to solve this problem?

score 0 · Accepted Answer · answered Feb 23 '15 at 10:13

0

I have successfully renamed a temporary file (even when deployed on Heroku) using the fileutils. Here is the code:

require 'roo'
require 'fileutils'

tmp = params[:upload][:file].tempfile
file = File.join("public", params[:upload][:file].original_filename)
FileUtils.cp tmp.path, file

s = Roo::Excelx.new(file)

answered Feb 23 '15 at 10:13

John Isaiah Carmona

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This is not a rename, it is a copy. The resulting copied file is not a temp file, it will not be cleaned up. – Schwern Feb 23 '21 at 06:44
`file` is not a temp file here right. It will not be clean up by garbage collector – user3636388 Feb 23 '21 at 07:05

score 0 · Answer 2 · answered Feb 23 '21 at 06:58

0

Or is there a more elegant way to solve this problem?

Yes, you can specify the extension.

s = Roo::Spreadsheet.open(
  params[:upload][:file].tempfile.path,
  extension: :xlsx
)

answered Feb 23 '21 at 06:58

Schwern

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Rails Rename tempfile

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