thanhcuong1990

# db/migrate/XXXXXXXXXXXXX_add_authentication_token_to_users.rb

class AddAuthenticationTokenToUsers < ActiveRecord::Migration
  def change
    add_column :users, :authentication_token, :string

    add_index :users, :authentication_token, :unique => true
  end
end

thanhcuong1990

# /app/models/user.rb
class User < ActiveRecord::Base
  has_one :account_setting, :dependent => :destroy
  accepts_nested_attributes_for :account_setting
end
 
 
# /app/controllers/users_controller.rb
class UsersController < ApplicationController
  def new

thanhcuong1990

# /app/models/user.rb
class User < ActiveRecord::Base
  has_one :account_setting, :dependent => :destroy
end


# /app/controllers/users_controller.rb
class UsersController < ApplicationController
  def create
    @user = User.new(params[:user])

thanhcuong1990

# /app/controllers/posts_controller.rb
class PostsController < ApplicationController
  def edit
    @post = get_post(params[:id])
    # ...
  end
  
  def update
    @post = get_post(params[:id])
    # ...

thanhcuong1990

# /app/controllers/posts_controller.rb
class PostsController < ApplicationController
  before_filter :get_post, :only => [:edit, :update, :destroy]
  
  def edit
    # ...
  end
  
  def update
    # ...

thanhcuong1990

# /app/controllers/posts_controller.rb
class PostsController < ApplicationController
  before_filter :get_post, :only => [:edit, :update, :destroy]
  
  def get_post
    @post = Post.find(params[:id])
  end
  
  def edit
    # ...

thanhcuong1990

# /app/controllers/posts_controller.rb
class PostsController < ApplicationController
  def edit
    @post = Post.find(params[:id])
    # ...
  end
  
  def update
    @post = Post.find(params[:id])
    # ...

thanhcuong1990

current_user.posts.create(
  :title => "This is the title", 
  :content => "This is the content of post"
)

thanhcuong1990

# /app/controllers/posts_controller.rb
p = Post.new
p.title = "This is the title"
p.content = "This is the content of post"
p.user = current_user
p.save

thanhcuong1990

# /app/models/topic.rb
class Topic < ActiveRecord::Base
  scope :trending, lambda { |num = nil| where('started_trending > ?', 1.day.ago).
                                  order('mentions desc').
                                  limit(num) }
  # ...
end