未定义方法 `articles_path’ for #

huangapple
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英文:

undefined method `articles_path' for #<ActionView::Base:0x0000000000b450>

问题

以下是翻译好的内容：

这是名为Articles的控制器

  1. def new
  2.     @article = Article.new
  3. end
  5. def show
  6.     @article = Article.find(params[:id])
  7. end
  9. def create
  10.     @article = Article.new(article_params)
  11.     if @article.save
  12.         redirect_to @article
  13.     else
  14.         render :new, status: :unprocessable_entity
  15.     end
  16. end

这是视图

  1. <h1>New Article</h1>
  3. <%= form_for(@article) do |form| %>
  4.     <div>
  5.         <%= form.label :title %><br>
  6.         <%= form.text_field :title %>
  7.     </div>
  8.     <div>
  9.         <%= form.label :body %><br>
  10.         <%= form.text_field :body %>
  11.     </div>
  12.     <div>
  13.         <%= form.submit %>
  14.     </div>
  15. <% end %>

这是路由

  1. get 'articles/new', to: 'articles#new'
  2. post 'articles/create', to: 'articles#create'

当我尝试访问路由 <http://localhost:3000/articles/new> 时，出现错误：undefined method `articles_path' for #ActionView::Base:0x0000000000b450

英文:

This is the controller named Articles

  1. def new
  2.     @article =Article.new
  3.   end
  4.   
  6.   def show
  7.     @article=Article.find(params[:id])
  8.   end
  10.   def create
  11.     @article=Article.new(article_params)
  12.     if @article.save
  13.       redirect_to @article
  14.     else
  15.       render :new, status: :unprocessable_entity
  16.     end
  17.   end

This is the view

  1. &lt;h1&gt;New Article&lt;/h1&gt;
  3. &lt;%form_for(@article) do |form|%&gt;
  4.     &lt;div&gt;
  5.         &lt;%=form.label :title%&gt;&lt;br&gt;
  6.         &lt;%=form.text_field :title%&gt;
  7.     &lt;/div&gt;
  8.     &lt;div&gt;
  9.         &lt;%=form.label :body%&gt;&lt;br&gt;
  10.         &lt;%=form.text_field :body%&gt;
  11.     &lt;/div&gt;
  12.     &lt;div&gt;
  13.         &lt;%=form.submit%&gt;
  14.     &lt;/div&gt;
  15. &lt;%end%&gt;

This is the routes

  1. get &#39;articles/new&#39;, to: &#39;articles#new&#39;
  2.   post &#39;articles/create&#39;, to: &#39;articles#create&#39;

when I want to access the route <http://localhost:3000/articles/new> it gives error undefined method `articles_path' for #&lt;ActionView::Base:0x0000000000b450&gt;

答案1

得分: 1

错误发生在form_for中。当提供新的article对象时，它必须猜测表单将提交到的路径。按照惯例，它尝试执行&quot;#{object.model_name.plural}_path&quot;

您的路由没有名称，也不生成辅助方法。您可以使用以下方式显式地为它们命名：

  1. get 'articles/new', to: 'articles#new', as: :new_article
  2. post 'articles/create', to: 'articles#create', as: :articles

或者使用resources快捷方式：

  1. resources :articles, only: %i[new create]
英文:

The error is raised within form_for. When new article object is given, it has to guess the path the form will be submitted to. Following convention, it tries to execute &quot;#{object.model_name.plural}_path&quot;

Your routes has no names and do not generate helpers. You can give them names explicitly with:

  1. get &#39;articles/new&#39;, to: &#39;articles#new&#39;, as: :new_article
  2. post &#39;articles/create&#39;, to: &#39;articles#create&#39;, as: :articles

Or use resources shortcut instead:

  1. resources :articles, only: %i[new create]

huangapple
  • 本文由 发表于 2023年7月23日 14:25:31
  • 转载请务必保留本文链接：https://go.coder-hub.com/76746884.html
  • ruby
  • ruby-on-rails
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