Ruby on rails ActiveRecord:：在ListsController#show中找不到RecordNot

试图查看列表中包含的项目时，我遇到以下错误

  Started GET "/lists/item" for ::1 at 2015-06-29 21:17:55 -0600
  Processing by ListsController#show as HTML
    Parameters: {"id"=>"item"}
    User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ?  ORDER BY "users"."id" ASC LIMIT 1  [["id", 3]]
      List Load (0.1ms)  SELECT  "lists".* FROM "lists" WHERE "lists"."user_id" = ? AND "lists"."id" = ? LIMIT 1  [["user_id", 3], ["id", 0]]
    Completed 404 Not Found in 5ms (ActiveRecord: 0.3ms)

ActiveRecord::RecordNotFound (Couldn't find List with 'id'=item [WHERE "lists"."user_id" = ?]):
  app/controllers/lists_controller.rb:44:in `set_list'

这是我的控制器：

class ListsController < ApplicationController
  before_action :set_list


  def new
    @list = current_user.lists.new
  end

  def create
    @list = current_user.lists.build(list_params)
    if @list.save
      flash[:notice] = "Your list was created successfully"
      redirect_to user_path(current_user)
    else
      flash[:error] = "There was an error saving your new list, please try again."
      render :new
    end
  end

  def show
    @list = current_user.lists.find(params[:id])
    @items = @list.items
  end

  def edit
  end

  def update
    if @list.update_attributes(list_params)
      redirect_to user_path(current_user)
    else
      flash[:error] = "There was an error saving your list, please try again."
      render :edit
    end
  end

  def destroy
    @list.destroy
  end

  private

  def set_list
    @list = current_user.lists.find(params[:id])
  end

  def list_params
    params.require(:list).permit(:name, :description)
  end

end

项目控制员

ActiveRecord::RecordNotFound (Couldn't find List with 'id'=3 [WHERE "lists"."user_id" = ?]):
  app/controllers/items_controller.rb:48:in `find_list'

class ItemsController < ActionController::Base
  before_action :find_list



  def new
    @item = @list.items.new
  end

  def show
  end

  def create
    @new_item = Item.new
    @item = @list.items.new(item_params)

    if @item.save
      flash[:notice] = "Item added successfully"
    else
      flash[:error] = "There was an error adding your item to the list, please try again."
    end

    respond_to do |format|
      format.html
      format.js
    end
  end

  def destroy

    @item = @list.items.find(params[:id])

    if @item.destroy
      flash[:notice]= "#{@item.name} has been completed. Good Job!"
    else
      flash[:error]= "Sorry looks like there was a problem marking your item as complete, please try again."
    end

    respond_to do |format|
      format.html
      format.js
    end
  end

  private

  def find_list
    @list = current_user.lists.find(params[:list_id])
  end

  def item_params
    params.require(:item).permit(:name)
  end
end

class ItemsController

出现此错误时（可能在索引中），您正在单击哪个链接？错误是因为您的路径是

/lists/item

。由于显示路线需要

列表/：id

，因此假定

id

是

项

。我正在单击单个列表的链接

“

应该做这个恶作剧@AbM我已经做出了改变，但现在我的物品控制器也出现了类似的错误。对rails来说是相当陌生的，并且试图弄清楚为什么我一直有这些路由问题。

@lists

是在哪里定义的？您确定id为3的列表属于当前用户吗？

<div class="media-body">
    <% @list.items.each do |item| %>
      <div id="<%= item.id %>">
        <div class="row">
          <div class="col-md-4">
        <%= item.name %>
      </div>
      <div class ="col-md-6">
        <%= time_ago_in_words(item.created_at) %> ago (Days remaining: <%= item.days_left %> )
        </div>
      <%= link_to "", list_item_path(item.list, item),  class: 'glyphicon glyphicon-ok', method: :delete, remote: true %>
      </div>
    <% end %>
    <hr>
</div>

<% @lists.each do |list| %>
        <li><%=link_to list.name , list_path(current_user, list), class: 'btn btn-default btn-lg btn-block' %></li>
      <% end %>

ActiveRecord::RecordNotFound (Couldn't find List with 'id'=3 [WHERE "lists"."user_id" = ?]):
  app/controllers/items_controller.rb:48:in `find_list'

class ItemsController < ActionController::Base
  before_action :find_list



  def new
    @item = @list.items.new
  end

  def show
  end

  def create
    @new_item = Item.new
    @item = @list.items.new(item_params)

    if @item.save
      flash[:notice] = "Item added successfully"
    else
      flash[:error] = "There was an error adding your item to the list, please try again."
    end

    respond_to do |format|
      format.html
      format.js
    end
  end

  def destroy

    @item = @list.items.find(params[:id])

    if @item.destroy
      flash[:notice]= "#{@item.name} has been completed. Good Job!"
    else
      flash[:error]= "Sorry looks like there was a problem marking your item as complete, please try again."
    end

    respond_to do |format|
      format.html
      format.js
    end
  end

  private

  def find_list
    @list = current_user.lists.find(params[:list_id])
  end

  def item_params
    params.require(:item).permit(:name)
  end
end