Ruby on Rails NameError

Question

다음 사용자를 위해 새로운 앱을 만들고 있는데 문제가 생겼습니다. 이건 내 오류입니다 :

* 내 사용자 모델

class User < ActiveRecord::Base 

    attr_accessible :pass, :username 
    # Who am I following? 
    has_many :following_relations, :foreign_key => :follower_id 
    has_many :following, :through => :following_relations 
    # Who am I followed by? 
    has_many :follower_relations, :class_name => "Relation", :foreign_key => :following_id 
    has_many :followers, :through => :follower_relations 

    validates :username, :pass, :presence => true 
    validates :username, :pass, :length => { :minimum => 4 } 
    validates :username, :uniqueness => true 


    def self.login(username,pass) 
    user = find_by_username(username) and user = find_by_pass(pass) 
    if user.nil? 
     return nil 
    else 
     return user 
    end 
    end 
end 

* relaion 모델

class Relation < ActiveRecord::Base 
    belongs_to :follower, :class_name => "User" 
    belongs_to :following, :class_name => "User" 
end 

* 액션 : 내 코드에서 사용자 :: FollowingRelation을 찾을 수 있습니다

NameError in Welcome#sucess 
Showing ../welcome/sucess.html.erb where line #13 raised: 
uninitialized constant User::FollowingRelation 
Extracted source (around line #13): 

10: <br /> 
11: Following 
12: <ul> 
13: <% @user.following.each do |u| %> 
14:  <li><%= link_to u.username, u %></li> 
15: <% end %> 
16: </ul> 

성공

def sucess 
    @user = User.find(params[:id]) 
    @relation = Relation.new 
end 

내가 루비 레일에 새로운, 그래서 저를 도와주세요 :)

Answer 1

을 당신이 줄 수정해야합니다

has_many :following_relations, :foreign_key => :follower_id 

사람 :

has_many :following_relations, class_name: 'Relation', :foreign_key => :follower_id