socialization.rb

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

  acts_as_followable
  acts_as_follower
end

User.create(email: "[email protected]", password: "secretpassword123", password_confirmation: "secretpassword123")
User.create(email: "[email protected]", password: "secretpassword123", password_confirmation: "secretpassword123")

ken = User.first
marco = User.last

marco.follow!(ken)                                           

ken.followers(User) # marco
marco.followees(User) # ken


# POST /users/:user_id/followers
config/routes.rb
resources :users, only: [] do 
	resources :followers, only: [:create]
end


class FollowersController < ActionController::Base

	def create
		other_user = User.find(params[:user_id])
		current_user # two different users we can access
		current_user.follow!(other_user)
		redirect_to root_path, notice: "You're following them now"
	end



	def create
		other_user = User.find(params[:user_id])
		current_user.follow!(other_user)
		redirect_to root_path, notice: "You're following them now"
	end
end