相关疑难解决方法(0)

是的,所以我检查了Roo.伟大的宝石和所有,并有一个真正的基本应用程序,没有没有模型.基本的控制器,类和视图,我似乎无法上传电子表格,因为我收到OLE2 signature is invalid错误.我有以下基本设置

调节器

class SpreadsheetServiceController < ApplicationController

  def new
  end

  def create    
    parser = SpreadsheetTagService.new(params[:spreadsheet][:file])

    respond_to do |format|
      format.all {render :json => 'Done'}
    end
  end
end 

SpreadsheetTagService

 class SpreadsheetTagService 
  include Roo

  def initialize(uploaded_file)
    @tmp_destination = "#{Rails.root}/tmp/tag-import.xls"
    @file_path = save_file_to_tmp(uploaded_file)
    @file = File.new(@file_path)
    read_file(@file)
  end 

  private 
    def save_file_to_tmp(uploaded_file)
      FileUtils.mv(uploaded_file.tempfile.path, @tmp_destination )
      @tmp_destination
    end

    def read_file(file)
      @spreadsheet = open_spreadsheet(file)
      @spreadsheet.each_with_pagename do |name,sheet|    
        Rails.logger.debug( sheet )
      end    
    end

    def open_spreadsheet(file)
      case File.extname(file.path)
        when ".csv" then Csv.new(file.path, nil, :ignore)
        when …