Ruby on rails 没有路由匹配{：action=>；show"；，：controller=>；spree/taxons"；，：id=>；nil}

你好，RoR程序员

升级到rails 5.1.5后，我陷入了定制的spree应用程序代码带来的错误中

puma记录了此错误：

故障保护响应期间出错：没有路由匹配{：操作=>“显示”， ：controller=>spree/taxons，：id=>nil}，可能不匹配 约束：[:id]
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/journey/formatter.rb:55:in

生成'

/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/route\u set.rb:748:in

生成“
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/route\u set.rb:779:in

生成'

/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/routing-filter-0.6.1/lib/routing\u filter/adapters/rails.rb:30:in

在生成中阻止“
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/routing-filter-0.6.1/lib/routing_filter/filters/locale.rb:70:in

round\u generate'

/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/routing-filter-0.6.1/lib/routing\u filter/filter.rb:11:in

run'
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/routing-filter-0.6.1/lib/routing\u filter/chain.rb:15:in

run'

/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/routing-filter-0.6.1/lib/routing\u filter/adapters/rails.rb:29:in

生成“
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/route\u set.rb:826:in '
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/route\u set.rb:277:in 呼叫“
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/route\u set.rb:335:in

在define_url_helper'

/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/routes\u proxy.rb:42:in

嵌套的分类单元路径'
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/actionpack-5.1.5/lib/action\u dispatch/routing/routes\u proxy.rb:45:in

方法\u缺失'

/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/spree\u core-3.4.4/app/helpers/spree/base\u helper.rb:79:in

seo\u url'
/home/ypill/wuxu18/app/views/spree/frontend/ypill/_main_nav_bar.html.erb:16:in `_d16a1d9612a1846710427ba2d762257f'中的块（3层）

app/controllers/spree/taxons\u controller.rb：

module Spree
  class TaxonsController < Spree::StoreController
    helper 'spree/products', 'spree/taxon_filters'

    respond_to :html

    def show
      @taxon = Taxon.friendly.find(params[:id])
      return unless @taxon

      @searcher = build_searcher(params.merge(taxon: @taxon.id, include_images: true))
      @products = @searcher.retrieve_products
      @taxonomies = Spree::Taxonomy.includes(root: :children)

在spree/core/app/helpers/spree/base_helper.rb中：

def seo_url(taxon)
  spree.nested_taxons_path(taxon.permalink)
end

第79行：

spree.nested\u taxons\u路径（taxon.permalink）

method\u缺少”或未定义的方法

permalink'表示nil:NilClass

自定义的_main_nav_bar.html.erb文件代码，puma记录的第16、14、13、12行错误：

<% @taxonomies ||= Spree::Taxonomy.includes(root: :children)  %>
<% max_level = Spree::Config[:max_level_in_taxons_menu] || 1 %>
<div class="navbar-header">
      <div class="container">
         <nav class="navbar" id="cssmenu">
          <ul class="navbar-nav">
            <li id="home-link"
            class="<%= ('active' if @page.nil? && @taxon.id == 12) unless @taxon.nil? %>"
              data-hook><%= link_to Spree.t(:home), spree.root_path %></li>

            <%#= @taxon.inspect %>
            <% @taxonomies.each do |taxonomy| %>
              <% cache [I18n.locale, taxonomy, max_level] do %>
                    <% taxonomy.root.children.each do |taxon| %>
                      <li class="<%= (taxon.id == @taxon.id ? 'active' : '') unless @taxon.nil? %>">
                        <%= link to taxon.name, seo_url(taxon) %>">
                        </a>
                      </li>
                    <% end %>
                <% end %>
            <% end %>
          </ul>

        </nav>

">

第12行：

<% @taxonomies.each do |taxonomy| %>

第13行：

<% cache [I18n.locale, taxonomy, max_level] do %>

第14行：

<% taxonomy.root.children.each do |taxon| %>

第16行

<%= link to taxon.name, seo_url(taxon) %>

在区块（3层）中，puma寻找spree_core-3.4.4/app/helpers/spree/base_helper.rb:79“spree.nested_taxons_path（taxon.permalink）”方法缺失的“seo_url”

main_nav_bar.html.erb在rails 4.2上工作

感谢您的帮助。

尝试以下方法：

 get '/t/*id', to: 'spree/taxons#show', as: :nested_taxons

---

这并不能解决这个错误。实际错误可能是“方法丢失”或“未定义的方法”，尽管puma记录了“无路由匹配”

 get '/t/*id', to: 'spree/taxons#show', as: :nested_taxons