Question

提交表单后我收到了一个奇怪的错误。一直试图解决这个问题几个小时..

No route matches {:action=>"show", :controller=>"items", :item_id=>"141", :matter_id=>"3"} missing required keys: [:id]

参数是：

{"utf8"=>"✓",
"authenticity_token"=>"w0D7XmX2X2/ZMU19T6RlMvWCEClXnCFFOR+4EdIFvWg=",
"comment_item"=>{"item_id"=>"",
"name"=>"kaljdf",
"body"=>"yet another comment test"},
"commit"=>"Post Comment",
"matter_id"=>"3",
"item_id"=>"141"}

我有以下型号：

class Matter < ActiveRecord::Base
  has many :discoveries
  delegate :items, to: :discoveries
end

class Discovery < ActiveRecord::Base
  belongs_to :matter
  scope :items, -> { where(type: 'Item') }
end

class Item < Discovery
  has_many :comment_items
end

class CommentItem < ActiveRecord::Base
  belongs_to :item
end

控制器：

class ItemsController < DiscoveriesController
  def show
    @item = Item.find(params[:id])
    @comment_item = CommentItem.new
  end

  def edit
    @item = Item.find(params[:id])
  end

  def new
    @item = Item.new
  end
end

class CommentItemsController < ApplicationController
  before_action :set_comment_item, only: [:show, :edit, :update, :destroy]

  def new
    @item = Item.find(params[:item_id])
    @comment_item = @item.comment_item.new
  end

  def create
    @item = Item.find(params[:item_id])
    @comment_item = @item.comment_items.new(comment_item_params)
    if @comment_item.save
      flash[:notice] = 'Comment was successfully created'
      redirect_to matter_item_url(matter_id: params[:matter_id])
    else
      flash[:notice] = "Error creating comment: #{@comment.errors}"
      redirect_to matter_item_url(@matter, @item)
    end
  end

  def destroy
    @comment_item = CommentItem.find(params[:id])
    @comment_item.destroy
    redirect_to(@comment_item.item)
  end

  private
    def set_comment_item
      @comment_item = CommentItem.find(params[:id])
    end

    def comment_item_params
      params.require(:comment_item).permit(:name, :body, :item_id, :matter_id)
    end
end

项目资源的展示操作：

<p>
  <strong>Matter:</strong>
  <%= @item.matter_id %>
</p>

<p>
  <strong>Content:</strong>
  <%= @item.content %>
</p>
<hr /> 
<%= form_for @comment_item, url: matter_item_comment_items_path(matter_id: @item.matter, item_id: @item.id) do |f| %> 
  <% if @comment_item.errors.any? %>
    <ul>
      <% @comment_item.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
    </ul>
  <% end %> 
  <%= f.hidden_field :item_id %> 

  <p> 
    <%= f.label :name %><br /> 
    <%= f.text_field :name %> 
  </p> 

  <p> 
    <%= f.label :body %><br /> 
    <%= f.text_area :body %> 
  </p> 

  <p> 
    <%= f.submit "Post Comment" %> 
  </p> 
<% end %> 
<%= render :partial => 'comment_item', :collection => @item.comment_items %>

<%= link_to 'Edit', edit_matter_item_path(id: @item.id) %> |
<%= link_to 'Back', matter_items_path %>

路线

resources :items do
  resources :comment_items
end

resources :matters do
  resources :items do
    resources :comment_items
  end
end

在控制台中查看CommentItems时，我发现评论实际上已添加到具有正确ID的模型中，但它们似乎并未作为参数传递。我错过了？

我已经审核了Rails 4 form_for double nested comments和Rails 3.2 - Nested Resource Passing ID，但我没有多少运气..

我非常感谢你的帮助！

Answer 1

No route matches {:action=>"show", :controller=>"items", :item_id=>"141", :matter_id=>"3"} missing required keys: [:id]

您的请求将转到ItemsController而不是CommentItemsController

参见：controller =＆gt; ＆＃34;项目＆＃34;

未在form_for中正确设置嵌套资源参数

1 个答案: