rubyonrails博客,为文章添加评论,编辑和删除评论

我正在写一个ROR博客,在写博客的过程中遇到了一些问题。我目前正在学习Rails,只是觉得完全失去了连接所有部件的能力。我已经在我的评论部分工作了几天,终于可以在帖子上创建评论了,但是我不能编辑或删除它们。我也提到了下面的问题,但仍然遇到问题。

• Add Comment to User and Post models (Ruby on Rails)

注释模型参数:

模型关联:

user.rb

has_many :posts
has_many :comments

post.rb

belongs_to :user
has_many :comments

comment.rb

belongs_to :user
belongs_to :post

Rails.application.routes.draw do
  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html

  get '/' => 'users#index'

  get '/posts' => 'posts#index'

  post '/posts/create' => 'posts#new'

  post '/posts/edit' => 'posts#edit'

  get '/signin' => 'sessions#new', as: :new_session
  post '/create-session' => 'sessions#create', as: :create_session
  get 'signout' => 'sessions#destroy', as: :destroy_session

  resources :users

  resources :posts
  resources :comments
end

控制器注释:

class CommentsController < ApplicationController

  def index
    @comment = Comment.all 
  end

  def new
    user = session[:user_id]
    @comment = Comment.new(post_id: params[:post_id])
    @post = Post.find(params[:post_id])
  end

  def create
    @comment = Comment.new(comment_params)
    @comment.user_id = session[:user_id]
    @postid = params[:id]
    if @comment.save
      flash[:notice] = "comment created."
      redirect_to '/posts'
    else
      flash[:error] = "Error creating comment."
      redirect_to '/posts'
    end
  end

  def edit
    @post = Post.find(params[:id])
  end

  def update
    @comment = Comment.find_by_id(params[:id])
    @comment.update(comment_params)
    flash[:notice] = "Comment updated."
    redirect_to '/posts'
  end

  def destroy
    @comment = Comment.find(params[:comment_id])
    @comment.destroy
    redirect_to '/posts'
  end

  private 

    def comment_params
      params.require(:comment).permit(:body, :user_id, :post_id)
    end
  end

帖子显示.html.erb“视图/帖子”文件夹中的页面:

<%# show all posts %>

<div id="single-post">
    <h1>User - <%= @post.user.username %></h1>

        <h2>Post -  <%= @post.body %> </h2>

        <%= link_to("Edit Post", edit_post_path(@post)) %>
        </br>
        <%= link_to("Delete Post", @post, method: 'delete') %>
        </br>
        <%= link_to("Add Comment", new_comment_path(post_id: @post.id)) %>
        <%#<%= link_to("Edit Comment", edit_comment_path(post_id: @post.id, comment_id: @comment.id))%>
</div>


    <h3><% @post.comments.reverse.each do |c| %> </h3> 
        <div id="single-comment">
            <h4>Comment</h4>
            <h5>From - <%= c.user.username %></h5>

            <h6><%= c.body %> </h6>

            </br>
            <%= link_to("Edit Comment", edit_comment_path(@post.id)) %>
            </br>
            <%= link_to("Delete Comment", comment_path(@post.id), method: :delete) %>

        </div>
    <% end %>

</div>

<div id="comment-form">
    <%= form_for @comment do |f| %>
        <%= f.label :body %>
        <%= f.text_area :body, class: "text-area" %>
        <%= f.hidden_field :post_id %>
        <%= f.submit %>
    <% end %>
</div>

同样,我可以添加评论的职位。当我将鼠标悬停在评论的edit标签上时,我看到:localhost:3000/评论/72/编辑

我在单击“编辑”时看到此错误

当我将鼠标悬停在“删除”按钮上时,会看到:本地主机:3000/comments/72

https://github.com/angelr1076/rails-blog