rails user_post_path(post.user.user_name，post)缺少必需的键：[:user_id]不工作在post索引页面上，而是在欢迎页面上工作

Question

我有个烦人的问题。

我在我的主页上使用了这一行代码，它可以工作，但是在我的帖子/索引页面上，它不起作用。

<%= link_to post.title, user_post_path(post.user.user_name, post), class:"post-listing-home-title" %>

最后，我希望在post索引页面上呈现来自用户的所有帖子，链接到他们的帖子，如下所示

本地主机:3000/users/user_name/post/“post名称”

这是我的错误

显示第10行所在的/Users/****/rorapps/*****/app/views/posts/index.html.erb：

没有路由匹配{:action=>"show"，：controller=>“post”，:id=>"eli-the-great"，:user_id=>nil}缺少必需的键：:user_id

这是我的密码

Posts控制器

    class PostsController < ApplicationController
  before_action :set_post, only: [:show, :edit, :update, :destroy]
  before_action :authenticate_user!, except: [:index, :show]

  # GET /posts
  # GET /posts.json
  def index
    @posts = Post.all.order("created_at desc")

  end

  # GET /posts/1
  # GET /posts/1.json
  def show

  end

  # GET /posts/new
  def new
      @post = current_user.posts.build

  end

  # GET /posts/1/edit
  def edit
  end

  # POST /posts
  # POST /posts.json
  def create
      @post = current_user.posts.build(post_params)

    respond_to do |format|
      if @post.save

        flash[:notice] = "Post successfully created"
        format.html { redirect_to @post }
        format.json { render :show, status: :created, location: @post }
      else
        format.html { render :new }
        format.json { render json: @post.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /posts/1
  # PATCH/PUT /posts/1.json
  def update
    respond_to do |format|
      if @post.update(post_params)

        flash[:notice] = "Post successfully created"
        format.html { redirect_to @post }
        format.json { render :show, status: :ok, location: @post }
      else
        format.html { render :edit }
        format.json { render json: @post.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /posts/1
  # DELETE /posts/1.json
  def destroy
    @post.destroy
    respond_to do |format|
      format.html { redirect_to posts_url }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_post
        @post = Post.friendly.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def post_params
      params.require(:post).permit(:title, :content,:slug, :metadescription, :focuskeyword)
    end
end

posts/index.html.erb

    <p id="notice"><%= notice %></p>

<h1 class="post-listing">Listing Posts</h1>

    <% @posts.each do |post| %>


            <p class="date"><%= post.created_at.strftime('%A, %B %d') %></p>

  <%= link_to post.title, user_post_path(post.user.user_name, post), class:"post-listing-title" %>

        <td><%= link_to 'Show', post %></td>
        <td><%= link_to 'Edit', edit_post_path(post) %></td>
        <td><%= link_to 'Destroy', post, method: :delete, data: { confirm: 'Are you sure?' } %></td>

    <% end %>

welcome.html.erb --这是代码行工作的地方

    <div class="container">

  <% @posts.each do |post| %>

    <div class="featured-post fadeInBlock animated">

        <p class="date"><%= post.created_at.strftime('%A, %B %d') %></p>
        <span class="show-right"><%= link_to '', user_post_path(:user_id, post), class:"myright fa fa-chevron-right" %></span>

      <%= link_to post.title, user_post_path(post.user.user_name, post), class:"post-listing-home-title" %>

       <% if user_signed_in? %>
          <td><%= link_to 'Edit', edit_user_post_path(:user_id,post) %></td>
          <td><%= link_to 'Destroy', user_post_path(:user_id, post), method: :delete, data: { confirm: 'Are you sure?' } %></td>
          <% end %>
    </div>
  <% end %>

<div id="about-home">

    <div id="about-box">
      <h1 id="abouttext">Try Harder !</h1>

  </div>



</div>

谢谢大家的帮助

Answer 1

问题是这条线

<%= link_to post.title, user_post_path(post.user.user_name, post), class:"post-listing-title" %>

您将在循环中呈现这些链接。

<% @posts.each do |post| %>

所以你的一个帖子作者似乎没有user_name。