Rails Tutorial Chapter 11 error "uninitialized constant User :: Relationships"
I keep getting the error
uninitialized constant User::Relationships
When working in chapter 11 of the rail guide.
Here is the complete error when trying to access the home page while logging into my browser.
Extracted source (around line #11):
8: </a>
9: <a href="<%= followers_user_path(@user) %>">
10: <strong id="followers" class="stat">
11: <%= @user.followers.count %>
12: </strong>
13: followers
14: </a>
I went through the chapter several times and checked every line of code, but sometimes your eyes play tricks on you, so here is the rest of the code
users.rb
class User < ActiveRecord::Base
attr_accessible :email, :name, :password, :password_confirmation
has_secure_password
has_many :microposts, dependent: :destroy
has_many :relationships, foreign_key: "follower_id", dependent: :destroy
has_many :followed_users, through: :relationships, source: :followed
has_many :reverse_relationships, foreign_key: "followed_id",
class_name: "Relationships",
dependent: :destroy
has_many :followers, through: :reverse_relationships, source: :follower
before_save { |user| user.email = email.downcase}
before_save :create_remember_token
validates :name, presence:true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, format: { with: VALID_EMAIL_REGEX},
uniqueness: { case_sensitive: false }
validates :password, presence: true, length: { minimum: 6}
validates :password_confirmation, presence: true
def feed
Micropost.where("user_id =?", id)
end
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
private
def create_remember_token
self.remember_token = SecureRandom.urlsafe_base64
end
end
This is the class itself
class Relationship < ActiveRecord::Base
attr_accessible :followed_id
belongs_to :follower, class_name: "User"
belongs_to :followed, class_name: "User"
validates :follower_id, presence: true
validates :followed_id, presence: true
end
This is how it is done in the tutorial ... I added: follower_id back just in case and it still doesn't work.
And I also have a relationship_controller constructor.
class RelationshipsController < ApplicationController
before_filter :signed_in_user
def create
@user = User.find(params[:relationship][:follower_id])
current_user.follow!(@user)
respond_to do |format|
format.html { redirect_to @user }
format.js
end
end
def destroy
@user = Relationship.find(params[:id]).followed
current_user.unfollow!(@user)
respond_to do |format|
format.html { redirect_to @user }
fromat.js
end
end
end
And in routes ...
resources :users do
member do
get :following, :followers
end
end
The page where the error occurs looks like this:
<% @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>
The first piece of code before the second block works fine when I remove the second piece. For some reason, the “follower” relationship doesn't work. I played with it in the console and didn't call, whereas user.followed_users does work. I've been playing with this for four hours, dropped the table and rebuilt it and I can't get it to work.
I've tried looking at Stack Overflow before and found this:
Ruby error (uninitialized User :: Relationship constant)
But none of the solutions there helped. Thanks for any help!
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