From: deal bitte <lists@...>
Date: 2012-08-08T20:25:36+09:00
Subject: file upload without entering the file

require 'rubygems'
    require 'spreadsheet'
    Spreadsheet.client_encoding = 'UTF-8'
     workbook = Spreadsheet.open params[:dump][:excel_file]
     sheet = workbook.worksheet 'database'


I am getting an error if i click on upload button with no file in the
field.

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