Question

我正在创建一个用户可以创建的应用程序和@idea，然后另一个@user可以＆＃39; fork＆＃39; @idea。为此，我使用了重复的方法ActiveRecord::Core#dup。

这就是我想要发生的事情。 @user打开了@idea显示页面并点击了一个图标，该图标应该引导他/她进入一个新的@forked_idea编辑页面，这将允许他们编辑原始的@idea并将其保存为新的@forked_idea。

以下是原始@idea的显示页面的片段。点击图标后，我希望它能够路由到一个编辑页面（在想法中或在想法中）

<%= link_to "<i class='fa fa-code-fork fa-5x'></i>".html_safe, idea_forked_idea_path(@idea), method: :get %>

当我点击图标来分叉@idea时，我看到了这个错误：

ActionController::UrlGenerationError - No route matches {:action=>"update", :controller=>"forked_ideas", :format=>nil, :id=>nil, :idea_id=>#<Idea id: 78,

这是app / controllers / ideas_controller.rb

class ForkedIdeasController < ApplicationController

def edit
end

def update
  @idea = Idea.find(params[:id])
  @forked_idea = @idea.dup
  if @forked_idea.save(forked_idea_attributes)
    redirect_to forked_ideas_edit_path(@idea), notice: "Forking this idea!"
  else
    render ideas_path
  end   
end


def destroy
  if @idea.destroy
    redirect_to ideas_path, notice: "idea has been deleted"
  else
    redirect_to ideas_path, notice: "idea has been deleted"
  end
end

private

def forked_idea_attributes
  params.require(:forked_idea).permit([:title, :body, :tag_list, :image])
end

end

端

我的forked_idea模型：

class ForkedIdea < ActiveRecord::Base

  belongs_to :user

路线

resources :ideas do
  resources :forked_ideas, only:[:edit, :update, :destroy]
end

以下是rake routes

edit_idea_forked_idea GET    /ideas/:idea_id/forked_ideas/:id/edit(.:format)    forked_ideas#edit
     idea_forked_idea PATCH  /ideas/:idea_id/forked_ideas/:id(.:format)         forked_ideas#update
                      PUT    /ideas/:idea_id/forked_ideas/:id(.:format)         forked_ideas#update
                      DELETE /ideas/:idea_id/forked_ideas/:id(.:format)         forked_ideas#destroy
                ideas GET    /ideas(.:format)                                   ideas#index
                      POST   /ideas(.:format)                                   ideas#create
             new_idea GET    /ideas/new(.:format)                               ideas#new
            edit_idea GET    /ideas/:id/edit(.:format)                          ideas#edit
                 idea GET    /ideas/:id(.:format)                               ideas#show
                      PATCH  /ideas/:id(.:format)                               ideas#update
                      PUT    /ideas/:id(.:format)                               ideas#update
                      DELETE /ideas/:id(.:format)                               ideas#destroy

Answer 1

可能是“id”为零 - 给出错误信息：

ActionController::UrlGenerationError - No route matches {:action=>"update", :controller=>"forked_ideas", :format=>nil, :id=>nil, :idea_id=>#<Idea id: 78,

当“id”为零时，您似乎没有路线。

复制@idea，获得＆＃34;没有路由匹配＆＃34;错误[rails]

1 个答案: