Add rake task to send welcome email to recently confirmed users

Author: rossta

app/models/user.rb

@@ -8,6 +8,8 @@ class User < ApplicationRecord
 
   has_one :newsletter_subscription, as: :subscriber, dependent: :destroy
 
+  scope :recently_confirmed, -> { where("confirmed_at > ?", 2.weeks.ago) }
+
   accepts_nested_attributes_for :email_exchanges, limit: 1
 
   validates :email, presence: true, uniqueness: true, format: {with: URI::MailTo::EMAIL_REGEXP}

lib/tasks/emails/welcome.rake

@@ -0,0 +1,7 @@
+namespace :emails do
+  task welcome: :environment do
+    User.recently_confirmed.find_each do |user|
+      WelcomeNotifier.deliver_to(user)
+    end
+  end
+end

spec/models/user_spec.rb

@@ -34,4 +34,14 @@ def create_user!(email:, password: "password", password_confirmation: "password"
       }.to raise_error(ActiveRecord::RecordInvalid, "Validation failed: Email has already been taken")
     end
   end
+
+  describe ".recently_confirmed" do
+    it "returns recently (within 2 weeks) confirmed users" do
+      FactoryBot.create(:user, confirmed_at: 1.month.ago)
+      recently_confirmed_user = FactoryBot.create(:user, confirmed_at: 1.week.ago)
+      FactoryBot.create(:user, :unconfirmed)
+
+      expect(User.recently_confirmed).to eq([recently_confirmed_user])
+    end
+  end
 end