Question

我希望有一个页面显示我项目中其他网站的链接。我在客户视图中创建了links.html.erb，但是当我尝试访问该页面时出现此错误。

ActiveRecord::RecordNotFound in CustomersController#show

Couldn't find Customer with 'id'=links

客户控制人：

class CustomersController < ApplicationController
  before_action :set_customer, only: [:show, :edit, :update, :destroy]
  before_action :authenticate_user!

  # GET /customers
  # GET /customers.json
  def index
    @customers = Customer.all
    @q = Tour.search(params[:q])
    @tours = @q.result.page(params[:page]).per(5)
    @q.build_condition if @q.conditions.empty?
    @q.build_sort if @q.sorts.empty?
  end

  def links
  end

  # GET /customers/1
  # GET /customers/1.json
  def show
    @customers = Customer.all
  end

  def welcome
  end

  # GET /customers/new
  def new
    @customer = Customer.new
  end

  # GET /customers/1/edit
  def edit
  end

  # POST /customers
  # POST /customers.json
  def create
    @customer = Customer.new(customer_params)

    respond_to do |format|
      if @customer.save
        format.html { redirect_to @customer, notice: 'Customer was successfully created.' }
        format.json { render :show, status: :created, location: @customer }
      else
        format.html { render :new }
        format.json { render json: @customer.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /customers/1
  # PATCH/PUT /customers/1.json
  def update
    respond_to do |format|
      if @customer.update(customer_params)
        format.html { redirect_to @customer, notice: 'Customer was successfully updated.' }
        format.json { render :show, status: :ok, location: @customer }
      else
        format.html { render :edit }
        format.json { render json: @customer.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /customers/1
  # DELETE /customers/1.json
  def destroy
    @customer.destroy
    respond_to do |format|
      format.html { redirect_to customers_url, notice: 'Customer record successfully deleted' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_customer
      @customer = Customer.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def customer_params
      params.require(:customer).permit(:name, :address, :telephone_no, :ticket_number)
    end
end

路线：

Rails.application.routes.draw do
  devise_for :admin_users, ActiveAdmin::Devise.config
  ActiveAdmin.routes(self)
  resources :customers
  resources :tours
  devise_for :users


  root 'customers#welcome'

在视图中：

<% if current_user.customer? %>
<div class="col-sm-4">
<%= link_to image_tag("image1.jpg", size: "300x300"), {:controller => 'customers', :action => "links" } %>

<h3>Links</H3>
</div>
<% end %>

有人帮忙解决了什么问题吗？感谢。

Answer 1

将get 'links' => 'customers#links', as: :link添加到routes.rb并将您的链接更新为：

<%= link_to image_tag("image1.jpg", size: "300x300"), link_path %>

Answer 2

这是Ganesh的答案的一些扩展。

执行此操作时：

<%= link_to image_tag("image1.jpg", size: "300x300"), {:controller => 'customers', :action => "links" } %>

您正在创建一个网址：

customers/links

在您的路线中，customers/links的第一个匹配为customers/:id，其customers/show路由params[:id] = 'links'。如果您不明白为什么会这样，请参阅Guide。这就是您收到错误的原因：

CustomersController＃show中的ActiveRecord :: RecordNotFound

找不到具有＆＃39; id＆＃39; =链接
的客户

正如Ganesh正确指出的那样，你可以像他说的那样严格强制路线。对我来说，将这个链接页面放在CustomerController中并强制路由是有点臭。但是，这确实是一个基于您试图解决的问题的设计决策。

Ruby on Rails“找不到'id'=链接的客户”

2 个答案: