Kaminari

Question

这是我的代码。

控制器：

def bisac_main_counts
  q = "
  MATCH (b:Bisac) WHERE (b.bisac_code =~ '.*000000')
  WITH b, size((b)<-[:INCLUDED_IN]-()) as wokas_count
  RETURN b.bisac_code as bisac_code, b.bisac_value as bisac_value, wokas_count
  ORDER BY b.bisac_code
  ;"
  @result = Neo4j::Session.current.query(q).to_a
  if params[:limit]
    @result = Kaminari.paginate_array(@result).page(params[:page]).per(params[:limit])
  else
    @result = Kaminari.paginate_array(@result).page(params[:page])
  end
end

查看：

<%= render 'home/main_links' %>
<%= paginate @result %>
<%= render 'bisac_counts' %>
<%= form_tag bisac_main_counts_path, method: :get do %>
   <%= select_tag :limit, options_for_select([5, 10, 15, 20, 25], selected: params[:limit] || 25) %>
<% end %>

部分：

<table>
  <thead>
    <tr>
      <th>Bisac Code</th>
      <th>Bisac Value</th>
      <th>Wokas Count</th>
    </tr>
  </thead>

  <tbody>
    <% @result.each do |record| %>
      <tr>
        <td><%= record.bisac_code %></td>
        <td><%= record.bisac_value%></td>
        <td><%= record.wokas_count %></td>
      </tr>
    <% end %>
  </tbody>
</table>

显然 params[:limit] 未在视图中设置。它始终为空。正在更改页面。

我做错了什么？

Answer 1

缺少的是更改限制的表格和触发它的方法。以下是更改（仅在视图中）：

<%= render 'home/main_links' %>
<%= paginate @result %>
<%= render 'bisac_counts' %>

<%= form_tag bisac_main_counts_path, method: :get, id: 'limit_form' do %>
   <%= select_tag :limit, options_for_select([5, 10, 15, 20, 25], selected: params[:limit] || 10) %>
<% end %>

<script type="text/javascript" >
  $(function(){
    $('#limit').change(
      function() {
       $('#limit_form').submit();
      });
  });
</script>

Kaminari - 无法根据页面限制动态选择

Kaminari - can't get dynamically selected per page limit

pagination

ruby-on-rails