使用rubyxl创建使用相同模板的多个工作表

Question

我有一个excel模板，只有一个工作表（Sheet1）。是否可以使用rubyxl生成多个工作表在我的输出文件中使用Sheet1作为模板？

Answer 1

template = RubyXL::Parser.parse 'path/to/template.xlsx'
sheet1 = template.worksheets[0]
sheet2 = template.worksheets[0]
#your code manipulating sheet1, sheet2 etc.
return RubyXL::Workbook.new [sheet1, sheet2]

Answer 2

我通过以下步骤实现了这一目标：

1. parse xlsx/xlsm file

workbook = RubyXL::Parser.parse(File.join(Rails.root, "public", "template.xlsm")

2. take worksheet template

template = workbook[0]

3. add a new worksheet to the workbook

worksheet = workbook.add_worksheet("Example")

4. duplicate sheet_data

worksheet.sheet_data = template.sheet_data.dup
worksheet.sheet_data.rows = template.sheet_data.rows.map do |row|
  next unless row
  new_row = row.dup
  new_row.worksheet = worksheet
  new_row.cells = row.cells.map{ |cell| next unless cell; new_cell = cell.dup; new_cell.worksheet = worksheet; new_cell }
  new_row
end

不幸的是Marshal.dump为sheet_data的单元格返回错误no _dump_data is defined for class Nokogiri::XML::Namespace，所以我不得不写这个脏的解决方法。

5. copy everything else you need

worksheet.cols = Marshal.load(Marshal.dump(template.cols))
worksheet.merged_cells = Marshal.load(Marshal.dump(template.merged_cells))

更多属性检查template.instance_variables

您也可以删除模板

workbook.worksheets.delete(template)

并使用新的工作表返回工作簿

send_data workbook.stream.string, filename: "example.xlsm", disposition: "attachment"

...在你的Rails控制器中

或者只是将其保存到文件中

workbook.write("path/to/desired/Excel/file.xlsx")