Rails - 在另一个部分中渲染编辑表单部分

发布于 2024-11-18 00:48:28 字数 2200 浏览 3 评论 0原文

我有一张桌子,我正在尝试使其更加精简。在我看来(此视图已经是部分视图(_recipe_ingredient.html.erb),我有以下代码,其中渲染部分不起作用:

<tr>
  <td><%= recipe_ingredient.ingredient.name %></td>
  <td><%= recipe_ingredient.ingredient.weight1*recipe_ingredient.quantity %></td>
  <td><%= recipe_ingredient.ingredient.description1 %></td>
  <td><%= recipe_ingredient.quantity %></td>
  <td><%= render(:partial => 'recipe_ingredients/edit', :locals =>   
    {:recipe_ingredient=> recipe_ingredient}) %></td>
  <td><%= link_to 'Remove', recipe_ingredient, :confirm => 'Remove ingredient from 
    recipe?', :method => :delete %></td>  
</tr>

以前,我使用 link_to 来编辑recipe_ingredient,如下所示(效果很好),但我不想让用户转到另一个页面进行编辑 - 相反,我希望表单成为表的一部分:

<td><%= link_to 'Edit Quantity', edit_recipe_ingredient_path(recipe_ingredient) %></td>

编辑部分(新的非工作代码调用)看起来像:

<h1>Editing recipe_ingredient</h1>
<%= render 'recipe_ingredients/form', :recipe_ingredient => @recipe_ingredient %>

标准表单部分看起来喜欢:

<%= form_for(@recipe_ingredient) do |recipe_ingredient| %>
  <% if @recipe_ingredient.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@recipe_ingredient.errors.count, "error") %> prohibited this  
        recipe_ingredient from being saved:</h2>

      <ul>
      <% @recipe_ingredient.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

    <div class="field">
    <%= recipe_ingredient.label :quantity %><br />
    <%= recipe_ingredient.number_field :quantity %>
  </div>
  <div class="actions">
    <%= recipe_ingredient.submit %>
  </div>
<% end %>

主要是,我很困惑为什么它使用 link_to 起作用,但我不能简单地渲染部分。我得到的错误是第一行中的 undefined method `model_name' for NilClass:Class 。 我尝试将表单部分

中的@recipe_ingredient 中的“@”去掉,但这也不起作用。

提前感谢您的帮助。

I have a table that I am trying to make a bit more streamlined. In my view (this view is already a partial (_recipe_ingredient.html.erb), I have the following code, where rendering the partial is not working:

<tr>
  <td><%= recipe_ingredient.ingredient.name %></td>
  <td><%= recipe_ingredient.ingredient.weight1*recipe_ingredient.quantity %></td>
  <td><%= recipe_ingredient.ingredient.description1 %></td>
  <td><%= recipe_ingredient.quantity %></td>
  <td><%= render(:partial => 'recipe_ingredients/edit', :locals =>   
    {:recipe_ingredient=> recipe_ingredient}) %></td>
  <td><%= link_to 'Remove', recipe_ingredient, :confirm => 'Remove ingredient from 
    recipe?', :method => :delete %></td>  
</tr>

Previously, I was using link_to to edit the recipe_ingredient as follows (which worked fine), but I would like not to have the user go to another page to edit - instead I want the form to be part of the table:

<td><%= link_to 'Edit Quantity', edit_recipe_ingredient_path(recipe_ingredient) %></td>

The edit partial (which the new non-working code calls) looks like:

<h1>Editing recipe_ingredient</h1>
<%= render 'recipe_ingredients/form', :recipe_ingredient => @recipe_ingredient %>

And the standard form partial looks like:

<%= form_for(@recipe_ingredient) do |recipe_ingredient| %>
  <% if @recipe_ingredient.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@recipe_ingredient.errors.count, "error") %> prohibited this  
        recipe_ingredient from being saved:</h2>

      <ul>
      <% @recipe_ingredient.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

    <div class="field">
    <%= recipe_ingredient.label :quantity %><br />
    <%= recipe_ingredient.number_field :quantity %>
  </div>
  <div class="actions">
    <%= recipe_ingredient.submit %>
  </div>
<% end %>

Mainly, I'm confused why it works using link_to, but I can't simply render the partial. The error I'm getting is undefined method `model_name' for NilClass:Class in the first line of the form partial.

I've tried taking the "@" off @recipe_ingredient in the form partial, but that doesn't work either.

Thanks in advance for any help.

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方觉久 2024-11-25 00:48:28

只需在您的操作中使用 @recipe_ingredient 创建对象,我认为它是一个编辑操作。

@recipe_ingredient = RecipeIngredient.find_by_id(params[:id)

希望这一切顺利。

just create object with @recipe_ingredient in your action i think its an edit action.

@recipe_ingredient = RecipeIngredient.find_by_id(params[:id)

hope this will work fine.

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