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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
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