viewing ruby blossom rdrc2017

Transcript

2. ❤ 
 Hello reddotrubyconf! 
 ❤
5. Anton Davydov github.com/davydovanton
 twitter.com/anton_davydov davydovanton.com
9. OpenSource
10. Hanami core
11. ruby rom-rb dry-rb rails crystal etc
12. moscow.rb
13. hanami (花⾒見見) Hanami (花⾒見見, lit. "flower viewing") is the Japanese traditional custom of enjoying the transient beauty of flowers, flowers ("hana") in this case almost always referring to those of the cherry ("sakura") or, less frequently, plum ("ume") trees.
16. Luca Guidi github.com/jodosha
18. General Ideas
19. Modularity Forget about fat models
21. Simplicity and Lightweight Framework is only tool
22. Architecturally Sound Isolation everywhere
23. Pure Objects If you know ruby you know hanami
24. Zero Monkey-Patching Don’t think framework or language
25. railshurts.com/quiz
26. railshurts.com/quiz
27. Threadsafe
29. hanami != rails
30. Typical parts of any web project
31. Web Project Business
 logic Data flow
32. Data flow
33. Container Architecture Clean Architecture
34. apps/ ├── admin │ ├── application.rb │ ├── assets │ │ └── ... │ ├── config │ │ └── ... │ ├── controllers │ │ └── ... │ ├── templates │ │ └── ... │ └── views │ └── ... └── web ├── ...
35. apps/ ├── admin │ ├── application.rb │ ├── assets │ │ └── ... │ ├── config │ │ └── ... │ ├── controllers │ │ └── ... │ ├── templates │ │ └── ... │ └── views │ └── ... └── web ├── ...
36. apps/ ├── admin │ ├── application.rb │ ├── assets │ │ └── ... │ ├── config │ │ └── ... │ ├── controllers │ │ └── ... │ ├── templates │ │ └── ... │ └── views │ └── ... └── web ├── ...
37. App App App lib App App App lib App App App lib request
38. App App App lib App App lib App App App lib request App
39. Business Logic
40. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
41. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
42. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
43. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
44. Gems
45. hanami - Base repository, CLI router - Rack compatible HTTP router for Ruby controller - Full featured and fast actions for Rack utils - Ruby core extensions and class utilities model - Persistence with entities and repositories
46. validations - Validations mixin for Ruby objects helpers - View helpers for Ruby applications view - Presentation with a separation assets - Assets management for Ruby mailer - Mail for Ruby applications
47. Differences
48. # rack class HelloApp def call(env) [200, { **env }, ['Hello!']] end end
49. # hanami-router class HelloApp def call(env) [200, { **env }, ['Hello!']] end end router = Hanami::Router.new router.get '/', to: 'hello_app'
50. # sinatra class Hello < Sinatra get '/' do 'Hello!' end end
51. # hanami Hanami::Router.new do get '/' do [200, { **env }, ['Hello!']] end end
52. class InstitutionsController < ApplicationController load_and_authorize_resource :only => [:destroy,:edit,:new,:create,:update] before_filter :authenticate_user!, :except => [:student_registration, :show, :validate_registration_pin, :result, :admission, :buy_registration_pin,:paygate_callback_failure, :p aygate_cancel, :paygate_pending, :paygate_callback_success, :pin_transaction_info_print] before_filter :find_institution, :except => [:show,:index, :new, :create, :semesters_for_institute_type, :start_end_date_for_assessment_period, :courses_for_batch, :paygate_ca llback_failure, :paygate_cancel, :paygate_pending, :paygate_callback_success, :pin_transaction_info_print] before_filter :add_bread_crumb,:except => [:show] def paygate_callback_success @pay_gate_config = YAML::load(File.open("#{Rails.root}/config/pay_gate_config.yml"))[Rails.env] @payment = TransactionRecord.find_by_order_number(params[:OrderID]) uri = URI("https://fidelitypaygate.fidelitybankplc.com/cipg/MerchantServices/UpayTransactionStatus.ashx") parameters = {:MERCHANT_ID => "#{@pay_gate_config['merchant_id']}", :ORDER_ID => "#{@payment.order_number}"} uri.query = URI.encode_www_form(parameters) result =open(uri).read result_hash = Hash.from_xml(result) record_payment_details(result_hash) if result_hash["CIPG"]["StatusCode"] == PaymentRecord::PAYMENT_SUCCESS_CODE if @payment.transactionable_type.eql?("PaymentRecord") redirect_to institution_fees_path(@payment.transactionable_type.fee.institution), :notice => "Payment transaction has been #{result_hash['CIPG']['Status']}" elsif @payment.transactionable_type.eql?("PinBuyerInfo") unless @payment.transactionable.pin_id.present? @registration = @payment.transactionable.registration @valid_registration_pin_groups = @registration.valid_registration_pin_groups @online_valid_registration_pin_groups = @valid_registration_pin_groups.where(:pin_available_type => 'Online') @offline_valid_registration_pin_groups = @valid_registration_pin_groups.where(:pin_available_type => 'Offline') @available_pin = nil @online_valid_registration_pin_groups.each do |vpg| if vpg.available_pins.present? @available_pin = vpg.available_pins.first break else next end end if !@available_pin.present? @offline_valid_registration_pin_groups.each do |vpg| if vpg.available_pins.present? @available_pin = vpg.available_pins.first break else next end end
53. class InstitutionsController < ApplicationController load_and_authorize_resource :only => [:destroy,:edit,:new,:create,:update] before_filter :authenticate_user!, :except => [:student_registration, :show, :validate_registration_pin, :result, :admission, :buy_registration_pin,:paygate_callback_failure, :p aygate_cancel, :paygate_pending, :paygate_callback_success, :pin_transaction_info_print] before_filter :find_institution, :except => [:show,:index, :new, :create, :semesters_for_institute_type, :start_end_date_for_assessment_period, :courses_for_batch, :paygate_ca llback_failure, :paygate_cancel, :paygate_pending, :paygate_callback_success, :pin_transaction_info_print] before_filter :add_bread_crumb,:except => [:show] def paygate_callback_success @pay_gate_config = YAML::load(File.open("#{Rails.root}/config/pay_gate_config.yml"))[Rails.env] @payment = TransactionRecord.find_by_order_number(params[:OrderID]) uri = URI("https://fidelitypaygate.fidelitybankplc.com/cipg/MerchantServices/UpayTransactionStatus.ashx") parameters = {:MERCHANT_ID => "#{@pay_gate_config['merchant_id']}", :ORDER_ID => "#{@payment.order_number}"} uri.query = URI.encode_www_form(parameters) result =open(uri).read result_hash = Hash.from_xml(result) record_payment_details(result_hash) if result_hash["CIPG"]["StatusCode"] == PaymentRecord::PAYMENT_SUCCESS_CODE if @payment.transactionable_type.eql?("PaymentRecord") redirect_to institution_fees_path(@payment.transactionable_type.fee.institution), :notice => "Payment transaction has been #{result_hash['CIPG']['Status']}" elsif @payment.transactionable_type.eql?("PinBuyerInfo") unless @payment.transactionable.pin_id.present? @registration = @payment.transactionable.registration @valid_registration_pin_groups = @registration.valid_registration_pin_groups @online_valid_registration_pin_groups = @valid_registration_pin_groups.where(:pin_available_type => 'Online') @offline_valid_registration_pin_groups = @valid_registration_pin_groups.where(:pin_available_type => 'Offline') @available_pin = nil @online_valid_registration_pin_groups.each do |vpg| if vpg.available_pins.present? @available_pin = vpg.available_pins.first break else next end end if !@available_pin.present? @offline_valid_registration_pin_groups.each do |vpg| if vpg.available_pins.present? @available_pin = vpg.available_pins.first break else next end end
54. Rails and Hanami
55. Controllers
56. class UsersController < AC def new end def send_sms end def user_params end end Controllers: Rails
57. class Cats::CruelsController < AC def index end def show end def user_params end end Controllers: DHH style
58. Controllers: hanami action module Web::Controllers::Board class Index include Web::Action params do required(:email).filled end def call(params) end end end
59. Controllers: hanami module Web::Controllers::Board class Index include Web::Action params do required(:email).filled end def call(params) end end end
60. Controllers: hanami module Web::Controllers::Board class Index include Web::Action params do required(:email).filled end def call(params) end end end
61. Model
62. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
63. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
64. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
65. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
66. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
67. Model: hanami hanami + ROM = ❤
68. Model: hanami entity class User < Hanami::Entity # ... end
69. Model: hanami entity >> user = User.new(id: 1) => #<User:0x007fa14d1e0528 @attributes={:id=>1}> >> user.id => 1 >> user.id = 1 NoMethodError: undefined method `id=' for #<User:0x007fa14d1e0528 @attributes={:id=>1}> Did you mean? id
70. Model: hanami entity >> user = User.new(id: 1) => #<User:0x007fa14d1e0528 @attributes={:id=>1}> >> user.id => 1 >> user.id = 1 NoMethodError: undefined method `id=' for #<User:0x007fa14d1e0528 @attributes={:id=>1}> Did you mean? id
71. class UserRepository < Hanami::Repository associations do has_many :books end def find_by_name(name) users # => ROM relation users.where(name: name).limit(1).one end end Model: hanami repository
72. >> repo = UserRepository.new => #<UserRepository relations=[:users]> >> repo.find(1) => #<User:0x007fa14d1a1fa8 @attributes={...}> Model: hanami repository
73. View
74. View: Rails rails view (partials?) + rails helper
75. View: Hanami hanami view (ruby class) + templates
76. Assets
77. Pros and Cons
78. No magic
79. module Web::Controllers::Board class Index include Web::Action def call(params) end end end
80. Action test describe Web::Controllers::Board::Index do let(:action){ Board::Index.new } let(:params){ Hash[] } it 'is successful' do response = action.call(params) response[0].must_equal 200 end end
81. Action test describe Web::Controllers::Board::Index do let(:action){ Board::Index.new } let(:params){ Hash[] } it 'is successful' do response = action.call(params) response[0].must_equal 200 end end
82. Action test describe Web::Controllers::Board::Index do let(:action){ Board::Index.new } let(:params){ Hash[] } it 'is successful' do response = action.call(params) response[0].must_equal 200 end end
83. No monkey-patching
84. Best practices
85. Dependency Injection
87. The logic separation
89. TDD
92. TDD
93. Good but not great documentation
94. Missing Gems
95. WebSockets
 Pagination
 WebPack
 Devise 2016
96. WebSockets
 Pagination
 WebPack
 Devise Now
98. awesome-hanami.org
99. Good for new contributors projects
100. octostar.herokuapp.com
101. contributors.hanamirb.org
102. Contacts hanamirb.org gitter.im/hanami/chat discuss.hanamirb.org
103. github.com/davydovanton
 twitter.com/anton_davydov davydovanton.com Thank you ❤