如何在视图中使用 paper_trail 格式化变更集的输出？

Question

# reports\workorder_version.html.haml
%table
%class='Work Orders'
  %tr
  %thead
    %tr
      %th Index
      %th Date
      %th User ID
      %th Event
      %th Item Type
      %th Item ID
      %th Change Set
      %th IP Address
    %tr

  %tbody
    - workorder = Workorder.where(:id => params[:id]).first
    - workorder.versions.reverse.each do |version|
      %tr
        %td= version.index
        %td= version.created_at.in_time_zone('Eastern Time (US & Canada)')
        %td= Employee.find(version.whodunnit.to_i).full_name.upcase
        %td= version.event.humanize
        %td= version.item_type.humanize
        %td= version.item_id
        %td= version.changeset.to_s.humanize
        %td= version.ip

我的输出：

如何让最终用户更容易阅读输出？

Answer 1

输出来自version.changeset, which returns a hash。您可以遍历散列以在单独的行上显示每个字段及其更改，如下所示：

%td
  -version.changeset.each do |field, value|
    = field + ": "
    = value
    %br