Add Exercise-15 solution

v-kolesnikov · Aug 21, 2015 · a820f1e · a820f1e
1 parent 1144484
commit a820f1e
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Showing 15 changed files with 135 additions and 2 deletions.
diff --git a/Gemfile b/Gemfile
@@ -37,6 +37,8 @@ gem "aws-sdk-v1"
 gem "aws-sdk"
 # Levenshtein distance between two byte strings
 gem "damerau-levenshtein"
+# Cron jobs
+gem "whenever", require: false
 
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger cli

diff --git a/Gemfile.lock b/Gemfile.lock
@@ -57,6 +57,7 @@ GEM
       rack (>= 1.0.0)
       rack-test (>= 0.5.4)
       xpath (~> 2.0)
+    chronic (0.10.2)
     climate_control (0.0.3)
       activesupport (>= 3.0)
     cocaine (0.5.7)
@@ -296,6 +297,8 @@ GEM
       binding_of_caller (>= 0.7.2)
       railties (>= 4.0)
       sprockets-rails (>= 2.0, < 4.0)
+    whenever (0.9.4)
+      chronic (>= 0.6.3)
     xpath (2.0.0)
       nokogiri (~> 1.3)
 
@@ -333,6 +336,7 @@ DEPENDENCIES
   turbolinks
   uglifier (>= 1.3.0)
   web-console (~> 2.0)
+  whenever
 
 BUNDLED WITH
    1.10.6
diff --git a/app/mailers/application_mailer.rb b/app/mailers/application_mailer.rb
@@ -0,0 +1,4 @@
+class ApplicationMailer < ActionMailer::Base
+  default from: "Flashcards"
+  layout "mailer"
+end
diff --git a/app/mailers/notifications_mailer.rb b/app/mailers/notifications_mailer.rb
@@ -0,0 +1,7 @@
+class NotificationsMailer < ApplicationMailer
+  def pending_cards(user)
+    @user = user
+    @cards = user.cards_for_review
+    mail(to: @user.email, subject: "Cards review")
+  end
+end
diff --git a/app/models/user.rb b/app/models/user.rb
@@ -16,4 +16,10 @@ def cards
   def cards_for_review
     default_deck ? default_deck.cards.for_review : cards.for_review
   end
+
+  def self.notify_review
+    User.all.each do |user|
+      NotificationsMailer.pending_cards(user).deliver_later
+    end
+  end
 end
diff --git a/app/views/layouts/mailer.html.erb b/app/views/layouts/mailer.html.erb
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <%= yield %>
+  </body>
+</html>
diff --git a/app/views/layouts/mailer.text.erb b/app/views/layouts/mailer.text.erb
@@ -0,0 +1 @@
+<%= yield %>
diff --git a/app/views/notifications_mailer/pending_cards.html.erb b/app/views/notifications_mailer/pending_cards.html.erb
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
+  </head>
+  <body>
+    <h1>Hello, <%= @user.email %> </h1>
+    <p>
+      The following cards are expected review:
+      <% @cards.each do |card| %>
+        <p> <%= card.translated_text %> </p>
+      <% end %>
+    </p>
+    <p>
+      To login to the site, just follow this link: <%= ENV["APP_HOST"] %>
+    </p>
+  </body>
+</html>
diff --git a/config/application.rb b/config/application.rb
@@ -1,6 +1,6 @@
-require File.expand_path('../boot', __FILE__)
+require File.expand_path("../boot", __FILE__)
 
-require 'rails/all'
+require "rails/all"
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.
@@ -16,6 +16,19 @@ class Application < Rails::Application
       storage: "filesystem"
     }
 
+    config.action_mailer.delivery_method = :smtp
+    config.action_mailer.smtp_settings = {
+      address: "smtp.gmail.com",
+      port: 587,
+      authentication: :plain,
+      user_name: ENV["SMTP_USER"],
+      password: ENV["SMTP_PASSWORD"],
+      enable_starttls_auto: true
+    }
+    config.action_mailer.default_url_options = {
+      host: ENV["APP_HOST"]
+    }
+
     # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
     # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
     # config.time_zone = 'Central Time (US & Canada)'

diff --git a/config/schedule.rb b/config/schedule.rb
@@ -0,0 +1,24 @@
+# Use this file to easily define all of your cron jobs.
+#
+# It's helpful, but not entirely necessary to understand cron before proceeding.
+# http://en.wikipedia.org/wiki/Cron
+
+# Example:
+#
+# set :output, "/path/to/my/cron_log.log"
+#
+# every 2.hours do
+#   command "/usr/bin/some_great_command"
+#   runner "MyModel.some_method"
+#   rake "some:great:rake:task"
+# end
+#
+# every 4.days do
+#   runner "AnotherModel.prune_old_records"
+# end
+
+# Learn more: http://github.com/javan/whenever
+
+every 1.day, at: "8:00 am" do
+  runner "User.notify_review"
+end
diff --git a/lib/tasks/scheduler.rake b/lib/tasks/scheduler.rake
@@ -0,0 +1,6 @@
+desc "Heroku scheduler tasks"
+task notify_review: :environment do
+  puts "Sending out email reminders for review."
+  User.notify_review
+  puts "Emails sent!"
+end
diff --git a/spec/factories/user.rb b/spec/factories/user.rb
@@ -12,5 +12,16 @@
         create_list(:deck, evaluator.decks_count, user: user)
       end
     end
+
+    factory :user_with_cards do
+      transient do
+        cards_count 1
+      end
+
+      after(:create) do |user, evaluator|
+        create_list(:deck_with_cards, 1, cards_count: evaluator.cards_count,
+                                         user: user)
+      end
+    end
   end
 end
diff --git a/spec/features/deck_spec.rb b/spec/features/deck_spec.rb
@@ -33,4 +33,10 @@
     click_button "Update Deck"
     expect(deck.user.decks.first.title).to eq "TestDeck"
   end
+
+  it "remove deck" do
+    visit decks_path
+    click_link "Удалить"
+    expect(page).to have_content("Колоды (0)")
+  end
 end
diff --git a/spec/mailers/notifications_mailer_spec.rb b/spec/mailers/notifications_mailer_spec.rb
@@ -0,0 +1,20 @@
+require "rails_helper"
+
+RSpec.describe NotificationsMailer do
+  let!(:user) { create(:user_with_cards, cards_count: 1) }
+
+  before(:each) do
+    ActionMailer::Base.delivery_method = :test
+    ActionMailer::Base.perform_deliveries = true
+    ActionMailer::Base.deliveries = []
+    NotificationsMailer.pending_cards(user).deliver_now
+  end
+
+  it "should send an email" do
+    expect(ActionMailer::Base.deliveries.count).to be 1
+  end
+
+  after(:each) do
+    ActionMailer::Base.deliveries.clear
+  end
+end
diff --git a/spec/mailers/previews/notifications_mailer_preview.rb b/spec/mailers/previews/notifications_mailer_preview.rb
@@ -0,0 +1,6 @@
+# Preview all emails at http://localhost:3000/rails/mailers/notifications_mailer
+class NotificationsMailerPreview < ActionMailer::Preview
+  def pending_cards
+    NotificationsMailer.pending_cards(User.first)
+  end
+end