如何从 Hash 中分页键和值

Question

想法：我想按每页十条记录（键->值）对散列结果进行分页。当我尝试对对象进行分页时，它显示错误：Undefined method paginates for Hash。我可以通过这个对键进行分页：

  def index
    @url = @base_url+'latest.json'+@api
    @response = HTTParty.get(@url)
    @latest_currencies = @response['rates'].sort.to_h
    @lc_keys = @latest_currencies.keys.paginate(page: params[:page], per_page: 10)
    @lc_values = @latest_currencies.values.paginate(page: params[:page], per_page: 10)
  end

但在视野中：

  table.table.table-condensed
    thead
      tr
        th Waluta
        th Kurs
    tbody
      - @lc_keys.each do |k, v|
        tr
          td
            = k
          td
            = v
      = will_paginate @lc_keys

仅对键分页，不显示值。如何在视图中对键和值进行分页和 return？

Answer 1

- @lc_keys.each do |k|
    tr
      td
        = k
      td
        = @latest_currencies[k]

或

@lc = @latest_currencies.to_a.paginate(page: params[:page], per_page: 10)

- @lc.each do |k, v|
    tr
      td
        = k
      td
        = v
= will_paginate @lc

如何从 Hash 中分页键和值

How to paginate keys and values from Hash

ruby

hash

pagination

ruby-on-rails

will-paginate