重命名AXLSX的Rails参数

Question

I am getting a dynamic array of fields from my front end application to determine what contents my workbook will have. Two of the fields will have the same value, but I want different column headings. So I have added this to my method:

    fields = params[:fields]
    fields[0].replace('new string')
    sheet.add_row fields
    exportees.each do |event_session_registration|
      row_array = params[:fields].map { |field| event_session_registration.try(field) }
      row_array.map! { |value| value == true ? 'Yes' : value }
      row_array.map! { |value| value == false ? 'No' : value }
      sheet.add_row row_array
    end

Fields[0] being the first of the two identical strings.

The problem now is that inside of my .each loop, params[:fields] now has the same contents as my updated fields variable. I have tried using .dup but that didn't leave my params unaltered either. I am able to get around this problem by doing the following:

    fields = params[:fields]
    fields[0].replace('new string')
    sheet.add_row fields
    fields[0].replace('original string')

However, I'm curious if there is a cleaner way to duplicate my params for the sake of printing different column headers. Thanks in advance!

Answer 1

Try this:

parameters = params.to_h
fields = parameters[:fields]