Homework 3

.gitignore

@@ -2,3 +2,9 @@
 /tmp
 /log
 /public
+/lib/profilers/reports
+.rspec
+spec/spec_helper.rb
+spec/rails_helper.rb
+/fixtures
+.env

Gemfile

@@ -4,11 +4,39 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 ruby file: '.ruby-version'
 
 gem 'rails', '~> 8.0.1'
+gem "sprockets-rails"
 gem 'pg'
 gem 'puma'
 gem 'listen'
 gem 'bootsnap'
 gem 'rack-mini-profiler'
 
+gem 'pry'
+gem 'oj'
+gem 'activerecord-import'
+
+# PG
+gem 'pghero'
+gem "pg_query"
+
+group :development, :test do
+  # ENV
+  gem "dotenv-rails", require: "dotenv/load", groups: %i[development test]
+
+  # RSpec
+  gem 'rspec-rails'
+  gem 'capybara'
+  gem 'selenium-webdriver'
+  gem 'webdrivers'
+
+  # Benchmarking
+  gem 'ruby-prof'
+  gem 'stackprof'
+  gem 'memory_profiler'
+  gem 'bullet'
+
+  gem 'annotaterb'
+end
+
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

@@ -53,6 +53,8 @@ GEM
       activemodel (= 8.0.1)
       activesupport (= 8.0.1)
       timeout (>= 0.4.0)
+    activerecord-import (2.1.0)
+      activerecord (>= 4.2)
     activestorage (8.0.1)
       actionpack (= 8.0.1)
       activejob (= 8.0.1)
@@ -72,21 +74,45 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    annotaterb (4.14.0)
     base64 (0.2.0)
     benchmark (0.4.0)
     bigdecimal (3.1.9)
     bootsnap (1.18.4)
       msgpack (~> 1.2)
     builder (3.3.0)
+    bullet (8.0.1)
+      activesupport (>= 3.0.0)
+      uniform_notifier (~> 1.11)
+    capybara (3.40.0)
+      addressable
+      matrix
+      mini_mime (>= 0.1.3)
+      nokogiri (~> 1.11)
+      rack (>= 1.6.0)
+      rack-test (>= 0.6.3)
+      regexp_parser (>= 1.5, < 3.0)
+      xpath (~> 3.2)
+    coderay (1.1.3)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     crass (1.0.6)
     date (3.4.1)
+    diff-lcs (1.6.0)
+    dotenv (3.1.7)
+    dotenv-rails (3.1.7)
+      dotenv (= 3.1.7)
+      railties (>= 6.1)
     drb (2.2.1)
     erubi (1.13.1)
     ffi (1.17.1-arm64-darwin)
     globalid (1.2.1)
       activesupport (>= 6.1)
+    google-protobuf (4.29.3-arm64-darwin)
+      bigdecimal
+      rake (>= 13)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     io-console (0.8.0)
@@ -107,6 +133,9 @@ GEM
       net-pop
       net-smtp
     marcel (1.0.4)
+    matrix (0.4.2)
+    memory_profiler (1.1.0)
+    method_source (1.1.0)
     mini_mime (1.1.5)
     minitest (5.25.4)
     msgpack (1.8.0)
@@ -122,13 +151,25 @@ GEM
     nio4r (2.7.4)
     nokogiri (1.18.2-arm64-darwin)
       racc (~> 1.4)
+    oj (3.16.9)
+      bigdecimal (>= 3.0)
+      ostruct (>= 0.2)
+    ostruct (0.6.1)
     pg (1.5.9)
+    pg_query (6.0.0)
+      google-protobuf (>= 3.25.3)
+    pghero (3.6.1)
+      activerecord (>= 6.1)
     pp (0.6.2)
       prettyprint
     prettyprint (0.2.0)
+    pry (0.15.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     psych (5.2.3)
       date
       stringio
+    public_suffix (6.0.1)
     puma (6.6.0)
       nio4r (~> 2.0)
     racc (1.8.1)
@@ -177,33 +218,90 @@ GEM
       ffi (~> 1.0)
     rdoc (6.12.0)
       psych (>= 4.0.0)
+    regexp_parser (2.10.0)
     reline (0.6.0)
       io-console (~> 0.5)
+    rexml (3.4.1)
+    rspec-core (3.13.3)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-rails (7.1.1)
+      actionpack (>= 7.0)
+      activesupport (>= 7.0)
+      railties (>= 7.0)
+      rspec-core (~> 3.13)
+      rspec-expectations (~> 3.13)
+      rspec-mocks (~> 3.13)
+      rspec-support (~> 3.13)
+    rspec-support (3.13.2)
+    ruby-prof (1.7.1)
+    rubyzip (2.4.1)
     securerandom (0.4.1)
+    selenium-webdriver (4.10.0)
+      rexml (~> 3.2, >= 3.2.5)
+      rubyzip (>= 1.2.2, < 3.0)
+      websocket (~> 1.0)
+    sprockets (4.2.1)
+      concurrent-ruby (~> 1.0)
+      rack (>= 2.2.4, < 4)
+    sprockets-rails (3.5.2)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
+      sprockets (>= 3.0.0)
+    stackprof (0.2.27)
     stringio (3.1.2)
     thor (1.3.2)
     timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    uniform_notifier (1.16.0)
     uri (1.0.2)
     useragent (0.16.11)
+    webdrivers (5.3.1)
+      nokogiri (~> 1.6)
+      rubyzip (>= 1.3.0)
+      selenium-webdriver (~> 4.0, < 4.11)
+    websocket (1.2.11)
     websocket-driver (0.7.7)
       base64
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
+    xpath (3.2.0)
+      nokogiri (~> 1.8)
     zeitwerk (2.7.1)
 
 PLATFORMS
   arm64-darwin-24
 
 DEPENDENCIES
+  activerecord-import
+  annotaterb
   bootsnap
+  bullet
+  capybara
+  dotenv-rails
   listen
+  memory_profiler
+  oj
   pg
+  pg_query
+  pghero
+  pry
   puma
   rack-mini-profiler
   rails (~> 8.0.1)
+  rspec-rails
+  ruby-prof
+  selenium-webdriver
+  sprockets-rails
+  stackprof
   tzinfo-data
+  webdrivers
 
 RUBY VERSION
    ruby 3.4.1p0

app/controllers/trips_controller.rb

@@ -1,7 +1,9 @@
 class TripsController < ApplicationController
   def index
-    @from = City.find_by_name!(params[:from])
-    @to = City.find_by_name!(params[:to])
-    @trips = Trip.where(from: @from, to: @to).order(:start_time)
+    @from = City.find_by!(name: params[:from])
+    @to = City.find_by!(name: params[:to])
+    @trips = Trip.eager_load(bus: :services).where(from: @from, to: @to).order(:start_time).to_a
+
+    @count = @trips.size
   end
 end

app/models/bus.rb

@@ -1,3 +1,11 @@
+# == Schema Information
+#
+# Table name: buses
+#
+#  id     :bigint           not null, primary key
+#  model  :string
+#  number :string
+#
 class Bus < ApplicationRecord
   MODELS = [
     'Икарус',

app/models/city.rb

@@ -1,3 +1,14 @@
+# == Schema Information
+#
+# Table name: cities
+#
+#  id   :bigint           not null, primary key
+#  name :string
+#
+# Indexes
+#
+#  index_cities_on_name  (name) UNIQUE
+#
 class City < ApplicationRecord
   validates :name, presence: true, uniqueness: true
   validate :name_has_no_spaces

app/models/service.rb

@@ -1,3 +1,10 @@
+# == Schema Information
+#
+# Table name: services
+#
+#  id   :bigint           not null, primary key
+#  name :string
+#
 class Service < ApplicationRecord
   SERVICES = [
     'WiFi',

app/models/trip.rb

@@ -1,3 +1,19 @@
+# == Schema Information
+#
+# Table name: trips
+#
+#  id               :bigint           not null, primary key
+#  duration_minutes :integer
+#  price_cents      :integer
+#  start_time       :string
+#  bus_id           :integer
+#  from_id          :integer
+#  to_id            :integer
+#
+# Indexes
+#
+#  index_trips_on_from_id_and_to_id  (from_id,to_id)
+#
 class Trip < ApplicationRecord
   HHMM_REGEXP = /([0-1][0-9]|[2][0-3]):[0-5][0-9]/
 
@@ -25,7 +41,7 @@ def to_h
       bus: {
         number: bus.number,
         model: bus.model,
-        services: bus.services.map(&:name),
+        services: bus.services.pluck(:name),
       },
     }
   end