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[英]Michael Hartl's Rails tutorial chapter 12 — undefined method `users'
[英]Rails 4 undefined method `followed_users' - Michael Hartl's Tutorial
嗨,我正在關注Michael Hartl的Rails教程,並收到錯誤未定義方法`followed_users'。 這是我的代碼,它指向第5行:添加的是stats.html.erb和用戶模型
_stats.html.erb
<% @user ||= current_user %>
<div class="stats">
<a href="<%= following_user_path(@user) %>">
<strong id="following" class="stat">
<%= @user.followed_users.count %>
</strong>
following
</a>
<a href="<%= followers_user_path(@user) %>">
<strong id="followers" class="stat">
<%= @user.followers.count %>
</strong>
followers
</a>
</div>
User.rb
class User < ActiveRecord::Base
before_save { self.email = email.downcase }
before_create :create_remember_token
validates :name, presence: true
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: true
has_secure_password
validates :password, length: { minimum: 6 }
def User.new_remember_token
SecureRandom.urlsafe_base64
end
def User.digest(token)
Digest::SHA1.hexdigest(token.to_s)
end
private
def create_remember_token
self.remember_token = User.digest(User.new_remember_token)
end
has_many :reverse_relationships, foreign_key: "followed_id",
class_name: "Relationship",
dependent: :destroy
has_many :followers, through: :reverse_relationships, source: :follower
def following?(other_user)
relationships.find_by(followed_id: other_user.id)
end
def follow!(other_user)
relationships.create!(followed_id: other_user.id)
end
def unfollow!(other_user)
relationships.find_by(followed_id: other_user.id).destroy
end
end
我看了教程,看來您的用戶模型中缺少這種關系:
has_many :followed_users, through: :relationships, source: :followed
這將添加followed_users
方法。
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