Refactor User.total_users into a scope

app/models/user.rb

@@ -15,6 +15,7 @@ class User < ActiveRecord::Base
   scope :daily_actives, ->(time = Time.now) { logged_in_since(time - 1.day) }
   scope :yearly_actives, ->(time = Time.now) { logged_in_since(time - 1.year) }
   scope :halfyear_actives, ->(time = Time.now) { logged_in_since(time - 6.month) }
+  scope :active, -> { joins(:person).where(people: {closed_account: false}).where.not(username: nil) }
 
   devise :token_authenticatable, :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable,
@@ -526,12 +527,8 @@ class User < ActiveRecord::Base
     end
   end
 
-
-  def self.total_users
-    User.joins(:person).where(:people => {:closed_account => false}).where.not(:username => nil)
-  end
-
   private
+
   def clearable_fields
     self.attributes.keys - ["id", "username", "encrypted_password",
                             "created_at", "updated_at", "locked_at",

app/presenters/statistics_presenter.rb

@@ -48,10 +48,7 @@ class StatisticsPresenter
   end
 
   def total_users
-    @total_users ||= User.joins(:person)
+    @total_users ||= User.active.count
-                         .where(people: {closed_account: false})
-                         .where.not(username: nil)
-                         .count
   end
 
   def monthly_users

spec/models/user_spec.rb

@@ -1089,18 +1089,20 @@ describe User, :type => :model do
       @user.after_database_authentication
       expect(@user.remove_after).to eq(nil)
     end
+  end
 
-  describe "total_users" do
+  describe "active" do
     before do
-      @user1 = FactoryGirl.build(:user, :username => nil)
+      invited_user = FactoryGirl.build(:user, username: nil)
-      @user1.save(:validate => false)
+      invited_user.save(validate: false)
-      @user2 = FactoryGirl.create(:user)
+
-      @user2.person.closed_account = true
+      closed_account = FactoryGirl.create(:user)
-      @user2.save
+      closed_account.person.closed_account = true
+      closed_account.save
     end
 
     it "returns total_users excluding closed accounts & users without usernames" do
-      expect(User.total_users.count).to eq 5     #5 users from fixtures
+      expect(User.active.count).to eq 6     # 6 users from fixtures
     end
   end
 end

spec/presenters/statistics_presenter_spec.rb

@@ -52,7 +52,7 @@ describe StatisticsPresenter do
           "network" => "Diaspora",
           "version" => AppConfig.version_string,
           "registrations_open" => AppConfig.settings.enable_registrations?,
-          "total_users" => User.total_users.count,
+          "total_users" => User.active.count,
           "active_users_halfyear" => User.halfyear_actives.count,
           "active_users_monthly" => User.monthly_actives.count,
           "local_posts" => @presenter.local_posts,