未定義的本地變量或方法`用戶

Question

RoR相當新穎，並通過教程工作。不知道爲什麼我得到這個錯誤，因爲我有一個用戶模型，將first_name定義爲可訪問的attr（它表示first_name不是定義的方法，如果我大寫用戶）。

錯誤： 未定義局部變量或方法`用戶」的＃<＃：0x007fdb75963478> 提取的源（約行＃9）：

6: 
7: <% @statuses.each do |status| %> 
8: <div class ="status"> 
9:  <strong><%= user.first_name %></strong> 
10:  <p><%= status.content %></p> 
11: <div class ="meta"> 
12:  <%= link_to time_ago_in_words(status.created_at) + " ago", status %> 

我的代碼： 用戶模型：

class User < ActiveRecord::Base 
# Include default devise modules. Others available are: 
# :token_authenticatable, :confirmable, 
# :lockable, :timeoutable and :omniauthable 
devise :database_authenticatable, :registerable, 
    :recoverable, :rememberable, :trackable, :validatable 

# Setup accessible (or protected) attributes for your model 
attr_accessible :email, :password, :password_confirmation, :remember_me, 
:first_name, :last_name, :profile_name 
# attr_accessible :title, :body 

validates :first_name, presence: true 
validates :last_name, presence: true 
validates :profile_name, presence: true, uniqueness: true, 
format: { 
with: /a-zA-Z0-9_-/, 
message: 'Must be formatted correctly.' 
} 

def full_name 
return first_name + " " + last_name 
end 

has_many :statuses 

end 

Index.html.erb：

<div class="page-header"> 
<h1>All of the statuses</h1> 
</div> 

<%= link_to "Post a new Status", new_status_path, class: "btn btn-success" %> 

<% @statuses.each do |status| %> 
<div class ="status"> 
<strong><%= user.first_name %></strong> 
<p><%= status.content %></p> 
<div class ="meta"> 
<%= link_to time_ago_in_words(status.created_at) + " ago", status %> 
<span class="admin"> 
    | <%= link_to "Edit", edit_status_path(status) %> | 
    <%= link_to "Delete", status, method: :delete, data: {confirm: "Are you sure you wanna delete this status"} %> 
</span> 
</div> 
</div> 
<% end %> 

Answer 1

在線#9它應該是：

<%= status.user.first_name %> 

假設你有belongs_to :user在Status模型。