嵌套編輯路徑不工作

Question

試圖找出_comment.html.erb文件中的編輯路徑。

不斷收到此錯誤：

ActiveRecord::RecordNotFound in CommentsController#edit 
Couldn't find Article with 'id'=#<Comment::ActiveRecord_Associations_CollectionProxy:0x007fcac37359e8> 

不知道如何計算如何寫正確的路徑。

評論控制器

class CommentsController < ApplicationController 
    def create 
    @article = Article.find(params[:article_id]) 
    @comment = @article.comments.create(comment_params) 
    redirect_to article_path(@article) 
    end 

    def show 
    @article = Article.find(params[:article_id]) 
    @comment = @article.comments.find(params[:id]) 
    end 

    def edit 
    @article = Article.find(params[:article_id]) 
    @comment = @article.comments.find(params[:id]) 
    end 


    def destroy 
    @article = Article.find(params[:article_id]) 
    @comment = @article.comments.find(params[:id]) 
    @comment.destroy 
    redirect_to article_path(@article) 
    end 

    private 
    def comment_params 
     params.require(:comment).permit(:commenter, :body) 
    end 
end 

_comment.html.erb

<p> 
    <strong>Commenter:</strong> 
    <%= comment.commenter %> 
</p> 

<p> 
    <strong>Comment:</strong> 
    <%= comment.body %> 
</p> 

<p> 
    <%= link_to 'Edit', edit_article_comment_path(@article.comments, comment) %> 
</p> 

<p> 
    <%= link_to 'Show', [comment.article, comment] %> 
</p> 

<p> 
    <%= link_to 'Destroy Comment', [comment.article, comment], 
       method: :delete, 
       data: { confirm: 'Are you sure?' } %> 
</p> 

路線

resources :articles do 
    resources :comments 
    end 

怎麼辦我寫出正確的道路？

而且，早期的路我已經是這樣的：

<%= link_to 'Edit', edit_article_comment_path(@article, comment) %> 

但它會變成一個空白的編輯形式，即，沒有一個文本框有任何填寫...因此爲什麼我試過其他路徑。

任何幫助，將不勝感激。

謝謝。

評論_form.html.erb

<%= form_for([@article, @article.comments.build]) do |f| %> 
    <p> 
    <%= f.label :commenter %><br> 
    <%= f.text_field :commenter %> 
    </p> 
    <p> 
    <%= f.label :body %><br> 
    <%= f.text_area :body %> 
    </p> 
    <p> 
    <%= f.submit %> 
    </p> 
<% end %> 

文章show.html.erb

<p> 
    <strong>Title:</strong> 
    <%= @article.title %> 
</p> 

<p> 
    <strong>Text:</strong> 
    <%= @article.text %> 
</p> 

<h2>Comments</h2> 
<%= render @article.comments %> 

<h2>Add a comment:</h2> 
<%= render 'comments/form' %> 

<%= link_to 'Edit', edit_article_path(@article) %> | 
<%= link_to 'Back', articles_path %> 

Answer 1

有一個在_comment.html.erb問題

<%= link_to 'Edit', edit_article_comment_path(@article.comments, comment) %> 

應該

<%= link_to 'Edit', edit_article_comment_path(@article, comment) %> 

But it would turn up a blank edit form, ie, none of the text boxes had anything filled in

如果傳遞正確的價值觀在form_for

<%= form_for [@article, @comment] do |f| %> 

EDIT2

您應該檢查井的問題是要傳遞的新實例每次評論，即使是編輯操作。這就是爲什麼你沒有得到形式的任何值

<%= form_for([@article, @article.comments.build]) do |f| %> 

將其更改爲

<%= form_for([@article, @comment]) do |f| %> 

並確保你在CommentsController都new和edit行動或無論你在哪裏分配@article和@comment渲染comments/_form

class CommentsController < ApplicationController 
    def new 
    @article = Article.find(params[:article_id]) 
    @comment = @article.comments.new 
    end 

    def edit 
    @article = Article.find(params[:article_id]) 
    @comment = @article.comments.find(params[:id]) 
    end 

    #... 
end