Domain Specific Languages and Ruby

Domain Specific Languages
What are they and how does Ruby help

Transcript

1. Domain Specific Languages What are they good for and how does Ruby help? tawan.sierek@gmail.com @tawan gitbub.com/tawan
3. SQL
4. SQL
5. SQL HTML
6. SQL HTML
7. SQL HTML
8. SQL If.. while .. HTML
9. SQL If.. while .. HTML
10. SQL If.. while .. HTML
11. SQL If.. while .. HOW WHAT HTML
13. get '/patients/:id', to: 'patients#show’
 
 namespace :admin do
 resources :articles, :comments
 end Rails’ routes.rb
14. class Person < ActiveRecord::Base
 validates :name, presence: true 
 validates :email, confirmation: true
 validates :age, numericality: true, on: :update
 end Rails’ ActiveModel
15. authorization do
 privileges do
 privilege :manage, :includes => [:create, :read, :update ]
 privilege :create, :includes => :new
 privilege :read, :includes => [:index, :show]
 privilege :update, :includes => :edit
 privilege :delete, :includes => :destroy
 end
 
 role :branch_admin do
 has_permission_on :branches, :to => :manage do
 if_attribute :managers => contains {user}
 end
 
 has_permission_on :employees, :to => :manage do
 if_permitted_to :manage, :branch
 end
 end
 end Declarative Authorization https://github.com/stffn/declarative_authorization
16. THANK YOU