Ruby on rails 无法在rails论坛的主题页面上创建帖子

我是rails新手，正在尝试创建一个论坛。论坛有很多话题，话题属于一个论坛，有很多微博客，微博客同时属于话题和用户。然而，无论我尝试什么，帖子都不会被创建。当前，当我尝试发布时，出现路由错误“No route matches[get]”/topics

My routes.rb文件：

resources :users 
resources :sessions, only: [:new, :create, :destroy]
resources :microposts, only: [:create, :destroy]
resources :forums, only: [:index, :show]
resources :topics, only: [:show]

_micropost_form.html.erb

<%= form_for(@micropost) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<div class="field">
    <%= f.hidden_field :topic_id, value: @topic.id %>
    <%= f.hidden_field :user_id, value: current_user.id %>
    <%= f.text_field :summary, placeholder: "One-line summary..." %>
    <%= f.text_area :content, placeholder: "Compose a new post..." %>
</div>
<%= f.submit "Post", class: "btn btn-large btn-primary" %>
<% end %>

microposts_控制器.rb

class MicropostsController < ApplicationController
before_action :signed_in_user, only: [:create, :destroy]
before_action :correct_user, only: :destroy

def create
    #@topic = Topic.find_by_id(params[:topic_id])
    @micropost = current_user.microposts.build(micropost_params)
    if @micropost.save
        flash[:success] = "Your solution has been posted!"
        redirect_to topic_path(@topic)
    else
        redirect_to topic_path(@topic)
    end
end

def destroy
    @micropost.destroy
    redirect_to root_url
end

private

    def micropost_params
        params.require(:micropost).permit(:summary, :content, :user_id)
    end

    def correct_user
        @micropost = current_user.microposts.find_by(id: params[:id])
        redirect_to root_url if @micropost.nil?
    end
end

class MicropostsController

---

正如你所看到的，我注释掉了create函数的第一行，因为我试图根据microspost与主题的关系发布帖子，但没有效果。提前谢谢，如果我发布更多代码，请告诉我是否会有所帮助

在您的

：topics

资源中，您没有定义索引方法，因此无法访问topic的列表或索引页面。尝试按以下方式更改您的路线：

resources :topics, only: [:index, :show]

resources :users 
resources :sessions, only: [:new, :create, :destroy]

resources :forums do
  resources :topics do
    resources :microposts, only: [:new, :create, :destroy]  
  end
end

 http://localhost:3000/forums

 http://localhost:3000/forums/id/topics

 http://localhost:3000/forums/id/topics/id/microposts

或者只从资源中删除属性，默认情况下，它将自动包含所有方法

resources :topics

此外，如果模型之间存在关系，则应在管线中定义嵌套管线 例如，您可以这样定义它们，您可以相应地更改它们：

尝试按以下方式更改路由文件：

resources :topics, only: [:index, :show]

resources :users 
resources :sessions, only: [:new, :create, :destroy]

resources :forums do
  resources :topics do
    resources :microposts, only: [:new, :create, :destroy]  
  end
end

 http://localhost:3000/forums

 http://localhost:3000/forums/id/topics

 http://localhost:3000/forums/id/topics/id/microposts

在上述情况下，您可以通过以下方式访问论坛：

resources :topics, only: [:index, :show]

resources :users 
resources :sessions, only: [:new, :create, :destroy]

resources :forums do
  resources :topics do
    resources :microposts, only: [:new, :create, :destroy]  
  end
end

 http://localhost:3000/forums

 http://localhost:3000/forums/id/topics

 http://localhost:3000/forums/id/topics/id/microposts

您可以访问以下主题：

resources :topics, only: [:index, :show]

resources :users 
resources :sessions, only: [:new, :create, :destroy]

resources :forums do
  resources :topics do
    resources :microposts, only: [:new, :create, :destroy]  
  end
end

 http://localhost:3000/forums

 http://localhost:3000/forums/id/topics

 http://localhost:3000/forums/id/topics/id/microposts

您可以通过以下方式访问MicroPost：

resources :topics, only: [:index, :show]

resources :users 
resources :sessions, only: [:new, :create, :destroy]

resources :forums do
  resources :topics do
    resources :microposts, only: [:new, :create, :destroy]  
  end
end

 http://localhost:3000/forums

 http://localhost:3000/forums/id/topics

 http://localhost:3000/forums/id/topics/id/microposts

如果您想直接访问

/microspots

，则必须将其置于任何资源之外

resources :microposts, only: [:index]    

现在，您将能够访问它：

 http://localhost:3000/microposts

---

希望这会有帮助。谢谢。

谢谢您的快速回复，但它仍然不适合我：（首先，我向路由和主题控制器添加了一个索引，但它最终只是将我指向/topics页面，而没有保存microspost。似乎由于它没有保存，它只是被重定向到了错误的页面……此外，在我更改路由文件并点击submit之后，我遇到了路由错误“No route matches[POST]”/microspost“”-我需要做的不仅仅是更改路由文件吗？删除：也只从MicroPost中删除选项。它将重定向到所有路由。