Having trouble counting page views using "impressionist" gem (Ruby on Rails) - ruby-on-rails

Question

Update #2
I've got it working but how can I make it count each refresh? Even if I refresh on a user's profile (/users/3 for example), I want it to count.
Widget.rb
class Widget < ActiveRecord::Base
is_impressionable
def impressionist_count
impressions.size
end
end
Widgets controller
WidgetsController < ApplicationController
def show
#widget = Widget.find(params[:id])
impressionist(#widget,message:"wtf is a widget?") #message is optional
end
end
Added Is_Impressionable to the user model
and here's the code I'm using for show.html.erb view
<%= #user.impressionist_count(:filter=>:all) %>
Update #1
When I make the change noted below in Said's answer and try it in the "Widgets" controller and "Widget" module, I get this error now:
NoMethodError in Users#show
undefined method `impressionist_count' for nil:NilClass
Here's the user.rb
class User < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation
has_secure_password
has_many :microposts, dependent: :destroy
has_many :impressions, :as=>:impressionable
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: "Relationship",
dependent: :destroy
has_many :followers, through: :reverse_relationships, source: :follower
before_save { |user| user.email = user.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, length: { minimum: 6 }
validates :password_confirmation, presence: true
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
def feed
Micropost.from_users_followed_by(self)
end
def impressionist_count
impressions.size
end
private
def create_remember_token
self.remember_token = SecureRandom.urlsafe_base64
end
end
and here's the Users controller
class UsersController < ApplicationController
before_filter :signed_in_user,
only: [:index, :edit, :update, :destroy, :following, :followers]
before_filter :correct_user, only: [:edit, :update]
before_filter :admin_user, only: :destroy
def index
#users = User.paginate(page: params[:page]).all
end
def show
#user = User.find(params[:id])
#microposts = #user.microposts.paginate(page: params[:page])
end
def new
#user = User.new
end
def create
#user = User.new(params[:user])
if #user.save
sign_in #user
flash[:success] = "Demoapp!"
redirect_to root_url
else
render 'new'
end
end
def edit
end
def update
if #user.update_attributes(params[:user])
sign_in #user
flash[:success] = "Profile updated"
redirect_to #user
else
render 'edit'
end
end
def destroy
User.find(params[:id]).destroy
flash[:success] = "User destroyed"
redirect_to users_path
end
def following
#title = "Follow"
#user = User.find(params[:id])
#users = #user.followed_users.paginate(page: params[:page])
render 'show_follow'
end
def followers
#title = "Following"
#user = User.find(params[:id])
#users = #user.followers.paginate(page: params[:page])
render 'show_follow'
end
private
def correct_user
#user = User.find(params[:id])
redirect_to root_path unless current_user?(#user)
end
def admin_user
redirect_to root_path unless current_user.admin?
end
end
Original Post
What did I do wrong below?
I added the gem and ran the db migration.
Then I created a new "Widgets" controller file in app\controllers
WidgetsController < ApplicationController
def show
#widget = Widget.find
impressionist(#widget)
end
end
Then I created a new "Widget" model in app/models
class Widget < ActiveRecord::Base
is_impressionable
end
Then I added
<%= #widget.impressionist_count %>
in the show.html.erb view
What I am trying to count is the # of user's profile views. Throughout the website, you can click on a username and it will go into their profile. I just want to show the counter of how many times were clicked into their profile.
Thanks

Answer 1

Seems the problem is in show action,
instead:
#widget = Widget.find
try this
#widget = Widget.find(params[:id])
UPDATE: 1
you should add is_impressionable to your user model