Question

我每天下载（使用mechanize＆amp; when / sidekiq + redis）.xls文件包含两个工作表，想要将它们分成两个文件，每个文件都有一个工作表。我已经尝试了很多方法无济于事（在一个随机的delete方法中抛出希望可行的方法，nope）：

# goal: start with 1 file w/2 sheets and split into 2 files with 1 sheet each

def split_file
  open_xls = Spreadsheet.open 'my_file.xls'
  open_xls.write 'destination1.xls'
  open_xls.write 'destination2.xls'
  File.delete('my_file.xls')

  # open first new file and try to delete one sheet
  open_xls1 = Spreadsheet.open 'destination1.xls'
  sheet1 = open_xls1.worksheet(0)
  open_xls1.sheet1.delete   # from log: "NoMethodError: undefined method `delete'"
  open_xls1.write 'destination_only_sheet2.xls'

  # "" other sheet
  # repeat on 2nd file to remove other sheet

end

开始考虑“电子表格宝石处理工作簿，如数组 - 我可以使用数组方法吗？”......然后举手。

主电子表格 - 宝石资源：

repo guide：https://github.com/zdavatz/spreadsheet/blob/master/GUIDE.md
rubydocs：http://www.rubydoc.info/gems/ruby-spreadsheet

Answer 1

使用roo与roo-xls宝石（而不仅仅是spreadsheet）有效。我开始使用.xls文件，无法改变这一事实。神奇的是Roo的default_sheet和简单的first和last方法（因为.xls文件转换为.csv，只接受保存单个工作表）。我将此代码放在更广泛的.rb文件中，我也有require 'spreadsheet'和require 'csv'（不确定下面是否需要它们）：

# in this example, there are only two sheets in the .xls file

class SomeClassName

  require 'roo'
  require 'roo-xls'

  def split_file

    # relative path to file
    file_path = File.join(Rails.root, "lib", "assets", "downloaded_file.xls")

    # retrieve original xls and save first sheet as .csv
    oldxls = Roo::Spreadsheet.open(file_path)
    oldxls.default_sheet = oldxls.sheets.first
    oldxls.to_csv("#{file_path}/new_file_name1.csv")

    # retrieve original xls and save second sheet as .csv
    oldxls = Roo::Spreadsheet.open(file_path)
    oldxls.default_sheet = oldxls.sheets.last
    oldxls.to_csv("#{file_path}/new_file_name2.csv")

    # delete original .xls
    File.delete("#{file_path}/downloaded_file.xls")

  end

end

SomeClassName.split_file

将电子表格xls文件中的单个工作表拆分为csv文件

1 个答案: