Opt amir khasanov

.gitignore

@@ -2,3 +2,5 @@
 /tmp
 /log
 /public
+
+.idea

Dockerfile

@@ -0,0 +1,17 @@
+FROM ruby:2.6.3
+RUN apt-get update -qq && apt-get install -y nodejs postgresql-client && apt-get install -y cron
+RUN mkdir /rails-optimization-task3
+WORKDIR /rails-optimization-task3
+COPY Gemfile /rails-optimization-task3/Gemfile
+COPY Gemfile.lock /rails-optimization-task3/Gemfile.lock
+RUN bundle install
+    COPY . /rails-optimization-task3
+
+# Add a script to be executed every time the container starts.
+COPY entrypoint.sh /usr/bin/
+RUN chmod +x /usr/bin/entrypoint.sh
+ENTRYPOINT ["entrypoint.sh"]
+EXPOSE 3000
+
+# Start the main process.
+CMD ["rails", "server", "-b", "0.0.0.0"]

Gemfile

@@ -7,6 +7,14 @@ gem 'rails', '~> 5.2.3'
 gem 'pg', '>= 0.18', '< 2.0'
 gem 'puma', '~> 3.11'
 gem 'bootsnap', '>= 1.1.0', require: false
+gem 'activerecord-import'
+gem 'ruby-prof'
+gem 'pghero'
+gem 'pg_query', '>= 0.9.0'
+gem 'whenever', require: false
+gem 'rack-mini-profiler'
+gem 'flamegraph'
+gem 'stackprof'
 
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
@@ -17,6 +25,7 @@ group :development do
   # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
   gem 'web-console', '>= 3.3.0'
   gem 'listen', '>= 3.0.5', '< 3.2'
+  gem 'bullet'
 end
 
 group :test do

Gemfile.lock

@@ -1,150 +1,176 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.3)
-      actionpack (= 5.2.3)
+    actioncable (5.2.4.3)
+      actionpack (= 5.2.4.3)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.3)
-      actionpack (= 5.2.3)
-      actionview (= 5.2.3)
-      activejob (= 5.2.3)
+    actionmailer (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      actionview (= 5.2.4.3)
+      activejob (= 5.2.4.3)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.3)
-      actionview (= 5.2.3)
-      activesupport (= 5.2.3)
-      rack (~> 2.0)
+    actionpack (5.2.4.3)
+      actionview (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
+      rack (~> 2.0, >= 2.0.8)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.3)
-      activesupport (= 5.2.3)
+    actionview (5.2.4.3)
+      activesupport (= 5.2.4.3)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.3)
-      activesupport (= 5.2.3)
+    activejob (5.2.4.3)
+      activesupport (= 5.2.4.3)
       globalid (>= 0.3.6)
-    activemodel (5.2.3)
-      activesupport (= 5.2.3)
-    activerecord (5.2.3)
-      activemodel (= 5.2.3)
-      activesupport (= 5.2.3)
+    activemodel (5.2.4.3)
+      activesupport (= 5.2.4.3)
+    activerecord (5.2.4.3)
+      activemodel (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
       arel (>= 9.0)
-    activestorage (5.2.3)
-      actionpack (= 5.2.3)
-      activerecord (= 5.2.3)
+    activerecord-import (1.0.6)
+      activerecord (>= 3.2)
+    activestorage (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      activerecord (= 5.2.4.3)
       marcel (~> 0.3.1)
-    activesupport (5.2.3)
+    activesupport (5.2.4.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     arel (9.0.0)
-    bindex (0.6.0)
-    bootsnap (1.4.2)
+    bindex (0.8.1)
+    bootsnap (1.4.8)
       msgpack (~> 1.0)
-    builder (3.2.3)
-    byebug (11.0.1)
-    concurrent-ruby (1.1.5)
-    crass (1.0.4)
-    erubi (1.8.0)
-    ffi (1.10.0)
+    builder (3.2.4)
+    bullet (6.1.0)
+      activesupport (>= 3.0.0)
+      uniform_notifier (~> 1.11)
+    byebug (11.1.3)
+    chronic (0.10.2)
+    concurrent-ruby (1.1.7)
+    crass (1.0.6)
+    erubi (1.9.0)
+    ffi (1.13.1)
+    flamegraph (0.9.5)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    i18n (1.6.0)
+    i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.6.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
-    method_source (0.9.2)
-    mimemagic (0.3.3)
-    mini_mime (1.0.1)
+    method_source (1.0.0)
+    mimemagic (0.3.5)
+    mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
-    msgpack (1.2.9)
-    nio4r (2.3.1)
-    nokogiri (1.10.2)
+    minitest (5.14.1)
+    msgpack (1.3.3)
+    nio4r (2.5.2)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
-    pg (1.1.4)
-    puma (3.12.1)
-    rack (2.0.6)
+    pg (1.2.3)
+    pg_query (1.2.0)
+    pghero (2.7.0)
+      activerecord (>= 5)
+    puma (3.12.6)
+    rack (2.2.3)
+    rack-mini-profiler (2.0.4)
+      rack (>= 1.2.0)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.3)
-      actioncable (= 5.2.3)
-      actionmailer (= 5.2.3)
-      actionpack (= 5.2.3)
-      actionview (= 5.2.3)
-      activejob (= 5.2.3)
-      activemodel (= 5.2.3)
-      activerecord (= 5.2.3)
-      activestorage (= 5.2.3)
-      activesupport (= 5.2.3)
+    rails (5.2.4.3)
+      actioncable (= 5.2.4.3)
+      actionmailer (= 5.2.4.3)
+      actionpack (= 5.2.4.3)
+      actionview (= 5.2.4.3)
+      activejob (= 5.2.4.3)
+      activemodel (= 5.2.4.3)
+      activerecord (= 5.2.4.3)
+      activestorage (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
       bundler (>= 1.3.0)
-      railties (= 5.2.3)
+      railties (= 5.2.4.3)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
-    railties (5.2.3)
-      actionpack (= 5.2.3)
-      activesupport (= 5.2.3)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (5.2.4.3)
+      actionpack (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.3.2)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
+    rake (13.0.1)
+    rb-fsevent (0.10.4)
+    rb-inotify (0.10.1)
       ffi (~> 1.0)
+    ruby-prof (1.4.1)
     ruby_dep (1.5.0)
-    sprockets (3.7.2)
+    sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.1)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    thor (0.20.3)
+    stackprof (0.2.15)
+    thor (1.0.1)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
+    uniform_notifier (1.13.0)
     web-console (3.7.0)
       actionview (>= 5.0)
       activemodel (>= 5.0)
       bindex (>= 0.4.0)
       railties (>= 5.0)
-    websocket-driver (0.7.0)
+    websocket-driver (0.7.3)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
+    whenever (1.0.0)
+      chronic (>= 0.6.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  activerecord-import
   bootsnap (>= 1.1.0)
+  bullet
   byebug
+  flamegraph
   listen (>= 3.0.5, < 3.2)
   pg (>= 0.18, < 2.0)
+  pg_query (>= 0.9.0)
+  pghero
   puma (~> 3.11)
+  rack-mini-profiler
   rails (~> 5.2.3)
+  ruby-prof
+  stackprof
   tzinfo-data
   web-console (>= 3.3.0)
+  whenever
 
 RUBY VERSION
    ruby 2.6.3p62
 
 BUNDLED WITH
-   2.0.2
+   1.17.2

app/controllers/trips_controller.rb

@@ -2,6 +2,6 @@ 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)
+    @trips = Trip.preload(bus: :services).where(from: @from, to: @to).order(:start_time)
   end
 end

app/models/bus.rb

@@ -13,7 +13,7 @@ class Bus < ApplicationRecord
   ].freeze
 
   has_many :trips
-  has_and_belongs_to_many :services, join_table: :buses_services
+  has_and_belongs_to_many :services, -> { order(:name) }, join_table: :buses_services
 
   validates :number, presence: true, uniqueness: true
   validates :model, inclusion: { in: MODELS }

app/models/buses_service.rb

@@ -0,0 +1,2 @@
+class BusesService < ApplicationRecord
+end