vinhnglx

# First
class Example
  def hello
    puts 'hello'
  end
  
  def vinh
    puts 'vinh'
  end
end

vinhnglx

# is_printed? la 1 cai method, dau hoi la 1 kieu naming convention. Method return true or false se co dau ?
# con dau ! la phu dinh 
while !document.is_printed?
  document.print_next_page
end

vinhnglx

@import "compass/css3/filter";
.filtered {
  @include filter(grayscale(50%));
  @include filter(blur(10px));
}

vinhnglx

@import "compass/css3";

.main_content {
  @include flow-into(target);
}
 
.regions div {
  @include flow-from(target);
  width: 150px;
  height: 190px;

vinhnglx

require 'oauth'
require 'oauth2'

class ContactImporter
  def initialize(importer)
    @importer = importer
  end

  def authorize_url
    case @importer

vinhnglx

for i in 1..100 do
  if i % 3 == 0
    puts 'Anonymous'
  elsif i % 5 == 0
    puts 'Llama'
  end

  if (i % 3 == 0 && i % 5 == 0)
    puts 'AnonymousLlama'
  end

vinhnglx

    gem "switch_user

vinhnglx

    <% unless @contacts.nil?%>
        <% @contacts.each do |c|%>
            <ul>
                <li><%= c[:name]%> :  <%= c[:email]%></li>
            </ul> 
        <%end%>
    <%end%>

vinhnglx

    class User < ActiveRecord::Base
        validate_inclusion_of :activation_state, :in => ["pending", "active"]

        def self.pending_users
            find :all, :conditions => {:activation_state => 'pending'}
        end

        def self.active_users
            find :all, :conditions => {:activation_state => 'active'}
        end

vinhnglx

    class AddNameToUser < ActiveRecord::Migration
        def self.up
            add_column :users, :name, :string
            User.reset_column_information
            User.find(:all).each do |user|
                user.name = user.first_name + ' ' + user.last_name
            end
            remove_column :users, :first_name
            remove_column :users, :last_name
        end