删除评论时删除帖子

Question

当我删除我的评论时，我的帖子也被删除了，这里是我的MVC：

观点（在_comments.html.erb中）

 <%= div_for(comment) do %>
    <div class="comments_wrapper clearfix">
        <div class="pull-left">
            <p class="lead"><%= comment.body %></p>
            <p><small>Submitted <strong><%= time_ago_in_words(comment.created_at) %> ago</strong> by <%= comment.user.email %></small></p>
        </div>

        <div class="btn-group pull-right">
            <% if comment.user == current_user -%>
                <%= link_to 'Destroy', @comment, method: :delete, data: { confirm: 'Are you sure?' }, class: "btn btn-sm btn-default" %>
            <% end %>
        </div>
    </div>
<% end %>

型号：

class Comment < ActiveRecord::Base
  belongs_to :user
  belongs_to :post
end

class Post < ActiveRecord::Base
    belongs_to :user
    has_many :comments, dependent: :destroy
end

class User < ActiveRecord::Base
  has_many :posts
  has_many :comments
end

控制器

def create
    @post = Post.find(params[:post_id])
    @comment = @post.comments.new(comment_params)
    @comment.user = current_user

   respond_to do |format|
     if @comment.save
        format.html { redirect_to @post, notice: 'Comment was successfully created.' }
        format.json { render :show, status: :created, location: @comment }
     else
        format.html { render :new }
        format.json { render json: @comment.errors, status: :unprocessable_entity }
     end
   end
 end

  def destroy
    @post = Post.find params[:post_id]
    @comment = @post.comments.find params[:id]
    @comment.destroy
    redirect_to post_path(@post)
  end

路线

resources :post do
   resources :comments
end

当我删除评论时，我甚至会收到闪光通知：

  

您的帖子已被删除

位于后置控制器......