Rails vs Web2py

1. Rails vs Web2Py From ”Ruby On Rails” to ”Web to Python” http://jon.is.emotionull.com

2. Controllers  class MyTestController < ApplicationController def index render_text “Hello World” end end  def index(): return "Hello World"

3. Params  class MyTestController < ApplicationController def index render_text “Hello ”+params[:who] end end  def index(): return "Hello %s" % request.vars.who def index(): return "Hello %s" % request.args[0]

4. Dispatching  http://hostname/MyTest/index class MyTestController < ApplicationController def index render_text “Hello World” end end  http://hostname/myapp/mycontroller/index calls def index(): return "Hello %s" % request.vars.who

5. Routing  routes.rb  routes.py (reversed routing, with or without regex, IP filtering)

6. Views  <table> <% @recipes.each do |recipe| %> <tr> <td><%= recipe.name %></td> </tr> <% end %> </table>  <table> {{for recipe in recipes:}}> <tr> <td>{{=recipe.name}}</td> </tr> {{pass}} </table>

7. Passing vars in views  class MyTestController < ApplicationController def index @message=“Hello World” end end  def index(): return dict(message=”Hello World”)

8. Layouts  <title>Layout Example</title> <body> <%= yield %> </body> </html>  <title>Layout Example</title> <body> {{include}} </body> </html> and in view: {{extend ‘layout.html’}} body

9. Forms  <%= form_tag :action => "update" dp %> Name: <%= text_field "item", "name" %><br /> Value: <%= text_field "item", "value" %><br /> <%= submit_tag %> <%= end %>  def contact(): form = SQLFORM(Article) if form.accepts(request.vars): redirect('thanks') return dict(form=form)

10. Validation  ActiveForm::Definition::create :article do |f| f.section :details do |s| s.text_element :email,:class => 'required' do |e| e.validates_as_email :msg => 'not email' end end  db.define_table(‘Article’,SQLField(‘email’)) db.Article.email.requires=IS_EMAIL()

11. Migrations  class Article < ActiveRecord::Migration def self.up create_table :articles do |t| t.column :name, :string t.column :description, :text end end end  Article=db.define_table(‘Article’, SQLField(‘email’,’string’), SQLField(‘description’,’text’)

12. Queries  Article.find(:first,:conditions => [ "id > :id AND name = :name", {:id => 3, :name => "test" }])  db(Article.id>3 and Article.name==’test’).select()

13. Gems / Plugins  Lots of them  Free Appliaces (plugin system still under planning)

14. Installation  Must install ruby, Rails, gems, databases  Just a zip (crossplatform)

15. Web Administration  Nope  Killerfull fledged administration (even dedicated for apps)

16. Upload files  Plugins (paperclip)  Built in (specify as an 'upload' field

17. Users/Roles  Plugins  Built in (trivial to override)

18. Application Distribution  'Frozen' Applications  Share the application directory ByteCode compilation

19. Ticketing system/VC/ Unit testing  External  Builtin (you can even make patches via web interface)

20. Google App Engine  via JRuby (with LOTS of changes and hacks)  Natively (only framework that runs UNMODIFIED on GAE)

21. Caching  MemCache  For any function cache: in RAM, disk, memcache or combinations

22. Translations  Natively (but still hard to use)  You can add/edit translations via web interface

23. Routing  routes.rb  routes.py (reversed routing, with or without regex, IP filtering)

24. Support  Many books, very big community and tutorials  Two 'manual' books, smaller but dedicated community

25. Thank for watching! Questions? http://jon.is.emotionull.com jon@emotionull.com

Rails vs Web2py

Rails vs Web2py

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