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我目前正在尝试为带有 rails 3 的项目构建一个画廊系统。我觉得我应该从头开始做这个，以获得更多的控制和学习。但是，当我尝试从中删除图像时http://localhost:3000/admin/albums/33/images，删除按钮会转到http://localhost:3000/admin/albums/1/images。似乎删除按钮采用了所选图像的 ID，而不是将其附加到 url 的末尾，而是用它替换了 url 中的专辑 ID。我需要删除按钮来调用http://localhost:3000/admin/albums/33/images/1以删除该图像。我这辈子都想不通。

看法

<% @images.each do |image| %>
    <%= image.title %>
    <%= image.description %>
    <%= image.image_name %>
    <%= button_to "Delete", admin_album_images_path(image), :method => :delete, :style => "display: block;" %>
    <%= debug params %>
<% end %>

控制器

class Admin::ImagesController < ApplicationController
    def index
        @images = Image.all
    end
    def new
        @image = Image.new(params[:id])
    end
    def create
        @image = Image.new(params[:id])
        if @image.save
            flash[:notice] = "Successfully added image!"
            redirect_to [:admin, :albums, :image_name]
        else
            render :action => 'new'
        end
    end
    def show
    end
    def destroy
        @image = Image.find(params[:id])
        @image.destroy
        redirect_to admin_albums_path
    end
end

路线

Admin::Application.routes.draw do
  get "albums/index"

  get "dashboard/index"

  namespace :admin do
    root :to => "dashboard#index"
    resources :dashboard
    resources :albums do
      resources :images
     end
    get "admin/album"
    end
    get "logout" => "sessions#destroy", :as => "logout"
  get "login" => "sessions#new", :as => "login"
  get "signup" => "users#new", :as => "signup"
    # resources :users
  resources :basic
    root :to => "basic#index"

图像模型

class Image < ActiveRecord::Base
    attr_accessible :title, :description, :image_name
    has_and_belongs_to_many :albums
end

专辑型号

class Album < ActiveRecord::Base
    attr_accessible :title, :description
    has_and_belongs_to_many :images,  :dependent => :destroy
    validates :title, :description, :presence => true
end
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1 回答 1

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您需要更改admin_album_images_path，作为嵌套资源，您需要指定这两个资源。

<%= button_to "Delete", admin_album_images_path(image.album,image), :method => :delete, :style => "display: block;" %>
于 2013-03-11T19:13:22.107 回答