Rails重命名临时文件 [英] Rails Rename tempfile

问题描述

我正在使用 roo-rb 来访问上传的文件.我的代码是这样的:

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

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

但是我遇到了问题，因为生成的临时文件没有扩展名，并且出现了这个异常:

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不是Excel-xlsx文件

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

是否可以重命名 tempfile.path ，使其具有适当的扩展名(xlsx)?还是有一种更优雅的方式来解决这个问题?

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?

推荐答案

我已经使用 fileutils 成功重命名了一个临时文件(即使部署在Heroku上).这是代码:

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)

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