表单在Rails 3中没有正确加载

Question

我无法加载表单，不知道为什么会发生这种情况。

问题：当我尝试加载表单（/ messages/new）时，我得到一个空白页面，没有错误信息。

理由对这个问题：我认为问题是，消息和用户之间的联系没有被正确地建立起来，这就是为什么形式不正确加载，但不知道如何解决它。

背景：我目前通过POSTS/INDEX文件（附在下面）访问表单，但我认为这是错误的，因为每个用户应该有一个独特的链接......例如，如果我点击John创建的帖子的“联系人”按钮，则该消息应该发送给John，以此类推其他用户。我正在使用Simple Private Messaging插件。

感谢您的任何反馈！

感谢，

费萨尔

信息>新VIEW

<% form_for @message, :url => messages_path(:user_id => @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 %> 

消息模型

class Message < ActiveRecord::Base 

is_private_message 

attr_accessor :to 

end 

的routes.rb

Mysalary::Application.routes.draw do 

resources :messages do 
    collection do 
    post :delete_selected 
    end 
    end 

resources :users 
resources :profiles 
resources :pages 
resources :posts 

get "pages/home" 
get "pages/about" 
get "pages/legal" 
get "pages/feedback" 

root :to => 'posts#new' 

end 

MESSAGES CONTROLLER

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.first 
end 
end 

帖子> INDEX VIEW

<table class="table table-striped"> 
<tbody> 
<% @posts.each do |post| %> 
<tr> 
<td>I am a <%= post.title %> getting married in <%= post.job %> in <%= post.location %>, and looking for a <%= post.salary %>. My budget is <%= post.salary %>.</td> 
<td> <button class="btn" data-toggle="button" onClick="javascript:location.href = '/messages/new';" />Contact</button></td> 
<td><%= time_ago_in_words(post.created_at) %> ago.</td> 
<!--/. 
<td><%= link_to 'Show', post %></td> 
<td><%= link_to 'Edit', edit_post_path(post) %></td> 
<td><%= link_to 'Destroy', post, :confirm => 'Are you sure?', :method => :delete %></td> 
--> 
</tr> 
<% end %> 
</tbody> 
</table> 

Answer 1

消息/新线1，尽量从无声改变开口ERB标签以响亮的标签

个

S/<％/ <％=

从http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html