Rails: undefined method `relationships_path' - ruby-on-rails

Question

I was following the Michael Hart book and wanted to and add the follow and unfollow button to the users show page. While implementing this I encountered this error undefined method 'relationships_path'.
Any help would be helpful and appreciated.
relationships controller.rb
class RelationshipsController < ApplicationController
before_action :logged_in_user
def create
#user = User.find(params[:followed_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 }
format.js
end
end
end
users controller.rb
class UsersController < ApplicationController
before_action :authenticate_user!
before_action :set_user
def create
#user = User.friendly.find(params[:followed_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 }
format.js
end
end
def following
#title = "Following"
#user = User.find(params[:id])
#users = #user.following.paginate(page: params[:page])
render 'show_follow'
end
def followers
#title = "Followers"
#user = User.find(params[:id])
#users = #user.followers.paginate(page: params[:page])
render 'show_follow'
end
end
Relationship.rb
class Relationship < ActiveRecord::Base
belongs_to :follower, class_name: "User"
belongs_to :followed, class_name: "User"
validates :follower_id, presence: true
validates :followed_id, presence: true
end
User.rb
class User < ActiveRecord::Base
extend FriendlyId
friendly_id :name, use: :slugged
has_many :active_relationships, class_name: "Relationship",
foreign_key: "follower_id",
dependent: :destroy
has_many :following, through: :active_relationships, source: :followed
has_many :passive_relationships, class_name: "Relationship",
foreign_key: "followed_id",
dependent: :destroy
has_many :followers, through: :passive_relationships, source: :follower
# Follows a user.
def follow(other_user)
active_relationships.create(followed_id: other_user.id)
end
# Unfollows a user.
def unfollow(other_user)
active_relationships.find_by(followed_id: other_user.id).destroy
end
# Returns true if the current user is following the other user.
def following?(other_user)
following.include?(other_user)
end
end
_follow.html.erb
<%= form_for(current_user.active_relationships.build, remote: true) do |f| %>
<div><%= hidden_field_tag :followed_id, #user.id %></div>
<%= f.submit "Follow", class: "btn btn-primary" %>
<% end %>
_unfollow.html.erb
<%= form_for(current_user.active_relationships.find_by(followed_id: #user.id),
html: { method: :delete },
remote: true) do |f| %>
<%= f.submit "Unfollow", class: "btn" %>
<% end %>
show.html.erb
<% provide(:title, #user.name) %>
<div class="row">
<aside class="col-md-4">
<section class="stats">
<% #user ||= current_user %>
<div class="stats">
<strong id="following" class="stat">
<%= #user.following.count %>
</strong>
following
</a>
<strong id="followers" class="stat">
<%= #user.followers.count %>
</strong>
followers
</a>
<%= render 'follow' %>
</div>
</section>
</aside>
</div>
Routes.rb
Rails.application.routes.draw do
get 'users/index'
get 'users/show'
devise_for :users do
member do
get :following, :followers
end
end
get 'users/:id' => 'users#show', as: :user
end
Relationships | Migration
class CreateRelationships < ActiveRecord::Migration
def change
create_table :relationships do |t|
t.integer :follower_id, index: true
t.integer :followed_id, index: true
t.timestamps null: false
end
add_index :relationships, [:follower_id, :followed_id], unique: true
end
end

Answer 1

As per your route.rb, you don't have the required route i.e. POST /relationships. Add it into your route.rb:
resources :relationships