用户到Rails中的用户消息

时间:2012-11-07 20:58:13

标签: ruby-on-rails ruby

我一直在rails应用程序中构建消息,以便用户能够发送彼此的消息。我看了几个宝石,比如邮箱,但最终还是决定建立自己的宝石。

我希望有人可以帮我把这些碎片放在一起。我一直在关注类似问题的回答here

我正在rails控制台中测试并且我一直收到以下错误:

的未定义方法`send_message'

我该如何解决这个问题?

控制器

class MessagesController < ApplicationController
    # create a comment and bind it to an article and a user  
    def create
      @user = User.find(params[:id])
      @sender = current_user
      @message = Message.send_message(@sender, @user)
      flash[:success] = "Message Sent."
      flash[:failure] = "There was an error saving your comment (empty comment or comment way to long)"
    end
end

路线

  resources :users, :except => [ :create, :new ] do
     resources :store
     resources :messages, :only => [:create, :destroy] 
  end

消息模型

class Message < ActiveRecord::Base
  belongs_to :user

  scope :sent, where(:sent => true)
  scope :received, where(:sent => false)

  def send_message(from, recipients)
     recipients.each do |recipient|
       msg = self.clone
       msg.sent = false
       msg.user_id = recipient
       msg.save
     end
     self.update_attributes :user_id => from.id, :sent => true
   end
end

1 个答案:

答案 0 :(得分:4)

您正在课程级别调用该方法:Message.send_message。为了实现这一目标,它需要这样的声明:

def self.send_message(from, recipients)
  # ...
end

但是,你得到了这个:

def send_message(from, recipients)
  # ...
end

因此,要么在需要它的实例上调用方法,要么重构以使其在类级别上工作。