允許用戶在導軌中刪除他們自己的評論3

Question

對於每篇文章，都有後期評論。

這裏是爲Postcomment模型的樣子：

class Postcomment < ActiveRecord::Base 
    attr_accessible :comment_content 

    belongs_to :user 
    belongs_to :post 
end 

和Post模型

class Post < ActiveRecord::Base 
    attr_accessible :content, :image, :comment_content 
    belongs_to :user 
    has_many :postcomments, dependent: :destroy 
end 

我想允許用戶刪除自己的postcomments。這是我已經在視圖

_postcomment.html.erb

<% if post.postcomments.exists? %> 
    <% post.postcomments.each do |postcomment| %> 
    <%= link_to postcomment.user.name, postcomment.user %> 
    <span class="content2"><%= postcomment.postcomment_content %></span> 
    <% end %> 
<% end %> 

如何把這個代碼下面被改變，以允許用戶刪除評論？

<% if current_user?(postcomment.user) %> 
    <%= link_to "delete", postcomment.content, method: :delete, 
              confirm: "You sure?", 
              title: postcomment.content %> 
<% end %> 

current_user方法在會話的輔助

def current_user=(user) 
    @current_user = user 
    end 

    def current_user 
    @current_user ||= User.find_by_remember_token(cookies[:remember_token]) 
    end 

    def current_user?(user) 
    user == current_user 
    end 

這裏的Postcomments表

create_table "postcomments", :force => true do |t| 
    t.text  "content" 
    t.integer "user_id" 
    t.integer "post_id" 
    t.timestamp "created_at",  :null => false 
    t.timestamp "updated_at",  :null => false 
    t.text  "comment_content" 
    end 

Answer 1

也許......

如果CURRENT_USER == postcomment.user

如果current_user無論如何都返回一個用戶實例...

Answer 2

如果您只比較用戶標識可能會更好。這也更容易調試。

def current_user?(user) 
    user.id == current_user.id 
end 

Answer 3

也許是這樣的：

<%= link_to("delete", postcomment.content, :method => :delete, :confirm => "You sure?", :title => postcomment.content) if postcomment.user == current_user %>