0

我有一个应用程序，用户可以在其中创建产品。在产品页面上，我有一个编辑链接和一些文字。

当我创建一个新产品时。我明白了

路由错误没有路由匹配 {:action=>"edit", :controller=>"products"}

但是，当我检查我的数据库时，产品已创建，我可以正常查看页面。包括编辑按钮。

产品页面 (haml)

   = @product.name
   %br
   = @product.description
   %br
   - if current_user.admin || @product.user_id == current_user.id
     = link_to 'Edit', edit_product_path
     = link_to 'Delete', @product, method: :delete, data: { confirm: "Are you sure?" }

产品控制器 

  class ProductsController < ApplicationController
  before_filter :require_login
  before_filter :current_user, only: [:create, :destory]
  before_filter :admin_and_author, only: [:destory, :edit]
  before_filter :admin_user, only: :index

  def new 
    @product = Product.new
    @photo = Photo.new
    4.times{ @product.photos.build }
  end

  def create
  @product = current_user.products.new(params[:product])
  @photo = current_user.photos.new(params[:photo])

    if @product.valid?
      @product.save
      @photo.product_id = @product.id
      @photo.save
      render "show", :notice => "Sale created!"
    else
      render "new", :notice => "Somehting went wrong!"
    end
end

  def show
    @product = Product.find(params[:id]) 
  end

  def edit
    @product = Product.find(params[:id])
    @photo = @product.photos
  end

private

  def correct_user
    @product = current_user.products.find_by_id(params[:id])
    redirect_to root_url if @product.nil?
  end    

  def require_login
    unless current_user
      redirect_to root_url
    end
  end

  def admin_and_author
    @product = current_user.products.find_by_id(params[:id])
    redirect_to root_url if @product.nil? || current_user.admin
  end

def admin_user
  redirect_to(root_path) unless current_user.admin?
end

end

应用控制器

class ApplicationController < ActionController::Base
  protect_from_forgery
  helper_method :current_user

private
  def current_user
    @current_user ||= User.find_by_auth_token!(cookies[:auth_token]) if cookies[:auth_token]
  end

  def admin_and_user
    if current_user.id == 1 || current_user.admin
    else
      redirect_to(root_path)
    end
  end


end

创建产品页面（haml）

%h1 
  create item
= form_for @product,:url => products_path, :html => { :multipart => true } do |f|
  %p
    = f.label :name
    = f.text_field :name
  %p
    = f.label :description
    = f.text_field :description
  %p
    = f.fields_for :photos do |fp|
      =fp.file_field :image
      %br
  %p.button
    = f.submit

耙路线

           products GET    /products(.:format)                   products#index
                    POST   /products(.:format)                   products#create
        new_product GET    /products/new(.:format)               products#new
       edit_product GET    /products/:id/edit(.:format)          products#edit
            product GET    /products/:id(.:format)               products#show
                    PUT    /products/:id(.:format)               products#update
                    DELETE /products/:id(.:format)               products#destroy
4

3 回答 3

4

在产品页面中替换此行：

= link_to 'Edit', edit_product_path

和

= link_to 'Edit', edit_product_path(@product)

或者

= link_to 'Edit', [:edit, @product]
于 2013-06-13T16:50:41.950 回答
1

你需要render在你的edit方法中做一些事情。

于 2013-06-13T16:43:01.800 回答
1

任何edit或show路径都需要参考对象。看看我对类似问题的回答。它应该可以帮助你。

于 2013-06-13T16:44:43.477 回答