无法找到没有ID的用户-Rails 3项目中的表单错误 [英] Can't find user without ID - form error in Rails 3 project

问题描述

我正在Gumtree.com之类的网站上工作，用户可以在其中创建帖子，突出他们的各种需求(例如，我在第X天需要一名摄影师).

I am working on a website like Gumtree.com, where Users create Posts, highlighting their various needs (e.g. I need a photographer on day X).

消息传递"功能遇到了一些麻烦.我正在使用简单私人消息传递插件.

Having some trouble with the Messaging functionality. I am using the Simple Private Messaging plugin.

问题的形式是用户填写以发送消息/回复帖子.尝试访问/messages/new时出现以下错误:

Problem is in the form that Users fill out to send a message / respond to a post. I get the following error when I try to access /messages/new:

ActiveRecord::RecordNotFound in MessagesController#new
Couldn't find User without an ID

在下面安装我的模型-感谢您提供任何建议！

Attaching my models below - grateful for any advice!

谢谢

失败

消息控制器

class MessagesController < ApplicationController

before_filter :set_user

def index
if params[:mailbox] == "sent"
  @messages = @user.sent_messages
else
  @messages = @user.received_messages
end
end

def show
@message = Message.read_message(params[:id], current_user)
end

def new
@message = Message.new

if params[:reply_to]
  @reply_to = @user.received_messages.find(params[:reply_to])
  unless @reply_to.nil?
    @message.to = @reply_to.sender.login
    @message.subject = "Re: #{@reply_to.subject}"
    @message.body = "\n\n*Original message*\n\n #{@reply_to.body}"
  end
end
end

def create
@message = Message.new(params[:message])
@message.sender = @user
@message.recipient = User.find_by_login(params[:message][:to])

if @message.save
  flash[:notice] = "Message sent"
  redirect_to user_messages_path(@user)
else
  render :action => :new
end
end

def delete_selected
if request.post?
  if params[:delete]
    params[:delete].each { |id|
      @message = Message.find(:first, :conditions => ["messages.id = ? AND (sender_id = ? OR recipient_id = ?)", id, @user, @user])
      @message.mark_deleted(@user) unless @message.nil?
    }
    flash[:notice] = "Messages deleted"
  end
  redirect_to :back
end
end

private
def set_user
  @user = User.find(params[:user_id])
end
end

消息模型

class Message < ActiveRecord::Base

is_private_message

attr_accessor :to

end

用户模型

class User < ActiveRecord::Base

has_many :posts  
has_one :profile
has_private_messages

attr_accessible :email

validates_presence_of :email
validates_uniqueness_of :email, :message =>"Hmm, that email's already taken"
validates_format_of :email, :with => /^([^\s]+)((?:[-a-z0-9]\.)[a-z]{2,})$/i, :message => "Hi! Please use a valid email"


end

消息>新视图

<% form_for @message, :url => user_messages_path(@user) do |f| %>
<p>
To:<br />
    <%= f.text_field :to %>
    <%= error_message_on @message, :to %>
</p>
<p>
Subject:<br />
<%= f.text_field :subject %>
<%= error_message_on @message, :subject %>
</p>
<p>
  Message<br />
  <%= f.text_area :body %>
        <%= error_message_on @message, :body %>
</p>
<p>
  <%= submit_tag "Send" %>
</p>
<% end %>

推荐答案

您确定新邮件页面的 params 中收到:user_id 吗?即使是真的，我也怀疑这是您的意图，因为任何人都可以通过仅传递另一个:user_id 来假装成为另一个用户.

Are you sure that your page for new messages receives :user_id in it's params? Even if it is true, I doubt that this is was your intention because anyone can pretend to be another user by just passing another :user_id.

所以您的行在底部:

@user = User.find(params[:user_id]) # I think it's the cause of your error -- no :user_id is passed

好像必须这样:

@user = User.find(session[:user_id])

我想你听说过会议.

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