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Ruby on Rails
Mihai Frisan●   Programator●   Indragostit de Ruby on Rails din 2006●   Sustinator al software-ului open sourceBlog:    mi...
Yukihiro Matz Matsumoto        Creator Ruby
Ruby●   limbaj de programare orientat obiect●   dinamic●   focusat pe simplitate si productivitate●   sintaxa eleganta si ...
Totul in Ruby este obiect # Tipareste "MAJUSCULE" puts "majuscule".upcase # Tipareste valoarea absoluta a lui -5 puts -5.a...
Ruby este un limbaj de programare dinamicdef len(list)             public static int len(List list) x=0                   ...
Ruby este focusat pe simplitate si productivitateclass Circle                      Class Circle attr_accessor :center, :ra...
Ruby on Rails
David Heinemeier Hansson     Creator Ruby on Rails
Rails●   framework destinat dezvoltarii de aplicatii Web●   full-stack framework●   MVC pattern●   Convention over Configu...
Arhitectura Rails
Models
ActiveRecord●   Object Relation Mapping (ORM)●   Mapeaza tabele la clase si randurile la obiecte●   Database Agnostic
ActiveRecordCREATE TABLE entries (  id int(11) NOT NULL auto_increment,  name varchar(255),  comments varchar(255),  PRIMA...
ActiveRecordclass Entry < ActiveRecord::Base belongs_to :account has_many :comments validates_presence_of :name acts_as_ta...
Rails programmers like fat Models
Controler
ActionController●   Managementul request-urilor●   Mapeza actiunile la metode●   Separa logica de prezentare●   Implemente...
ActionController
View
ActionView●   Prezinta utilizatorului datele●   Foloseste template-uri●   Mecanism de caching
ActionView
Proiecte dezvoltate in Rails
Companii care folosesc Rails
De ce as folosi Rails?  ●   Convention over Configuration  ●   Data mapping  ●   AJAX  ●   Testing Framework  ●   Agile De...
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OSOM - Ruby on Rails

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OSOM - Open Source Open Mind - V3.0 Back to the roots - Cluj Napoca 2012
www.osom.ro

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Transcript of "OSOM - Ruby on Rails "

  1. 1. Ruby on Rails
  2. 2. Mihai Frisan● Programator● Indragostit de Ruby on Rails din 2006● Sustinator al software-ului open sourceBlog: mihai.frisan.roTwitter: @mihaifrisan
  3. 3. Yukihiro Matz Matsumoto Creator Ruby
  4. 4. Ruby● limbaj de programare orientat obiect● dinamic● focusat pe simplitate si productivitate● sintaxa eleganta si naturala
  5. 5. Totul in Ruby este obiect # Tipareste "MAJUSCULE" puts "majuscule".upcase # Tipareste valoarea absoluta a lui -5 puts -5.abs # Tipareste de 5 ori "Ruby Rocks!" 5.times do puts "Ruby Rocks!" End # Tipareste numerele de la 1 la 100 1.upto(100) { |i| puts i }
  6. 6. Ruby este un limbaj de programare dinamicdef len(list) public static int len(List list) x=0 { list.each do |element| int x = 0; x += 1 Iterator listIterator = end list.iterator();end while(listIterator.hasNext()){ x += 1; } }
  7. 7. Ruby este focusat pe simplitate si productivitateclass Circle Class Circle attr_accessor :center, :radius private Coordinate center, float radius;end public void setCenter(Coordinate center){ this.center = center; } public Coordinate getCenter(){ return center; } public void setRadius(float radius){ this.radius = radius; } public Coordinate getRadius(){ return radius; } }
  8. 8. Ruby on Rails
  9. 9. David Heinemeier Hansson Creator Ruby on Rails
  10. 10. Rails● framework destinat dezvoltarii de aplicatii Web● full-stack framework● MVC pattern● Convention over Configuration
  11. 11. Arhitectura Rails
  12. 12. Models
  13. 13. ActiveRecord● Object Relation Mapping (ORM)● Mapeaza tabele la clase si randurile la obiecte● Database Agnostic
  14. 14. ActiveRecordCREATE TABLE entries ( id int(11) NOT NULL auto_increment, name varchar(255), comments varchar(255), PRIMARY KEY (id));class Entry < ActiveRecord::Base # nothing here!endentry = Entry.newentry.name = "John"entry.comments = "What a great Web site!"entry.saveentry = Entry.find(1)puts entry.name # output: "John"
  15. 15. ActiveRecordclass Entry < ActiveRecord::Base belongs_to :account has_many :comments validates_presence_of :name acts_as_taggableendentry = Entry.newentry.name = "John"entry.comments << Comment.new("What a great Web site!")entry.saveEntry = Entry.find_by_name(“John”)
  16. 16. Rails programmers like fat Models
  17. 17. Controler
  18. 18. ActionController● Managementul request-urilor● Mapeza actiunile la metode● Separa logica de prezentare● Implementeaza resursele RESTful
  19. 19. ActionController
  20. 20. View
  21. 21. ActionView● Prezinta utilizatorului datele● Foloseste template-uri● Mecanism de caching
  22. 22. ActionView
  23. 23. Proiecte dezvoltate in Rails
  24. 24. Companii care folosesc Rails
  25. 25. De ce as folosi Rails? ● Convention over Configuration ● Data mapping ● AJAX ● Testing Framework ● Agile Development ● Numar impresionant de librarii
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