whats new in rails2

阅读更多

ActiveRecord

• Post.new.from_xml ({:title => "Hello!", :body => "text"}.to_xml)
• CSRF
• Partial layouts

  <% render :partial => "post", :layout => "window" %>
  or with a block:
  <% render :layout => "window", :locals => { :name => "Recent" } do %>
    <% for post in @recent_posts %>
      
  <%=h post.title %>
      
    <% end %>
  <% end %>

• HTTP authentication
• simply_helpful

  dom_class(@person) => "person"
  dom_class(Person) => "person"
  dom_class(@person, :edit) => "edit_person"
  dom_id(@person) => "person_1234"
  dom_id(Person.new) => "new_person"

   
• url_for

  url_for(@post) works like 
  post_path(@post).
  
  url_for(Post.new) works like 
  new_post_path.
  
  Works with link_to, redirect_to, etc.
  
  render :partial => @post works like 
  render :partial => "post", :object => @post
  
  render :partial => @posts works like 
  render :partial => "post", :collection => @posts

   

• form_for

  <% form_for @person do |f| %>
    <%= f.text_field :name %>
  <% end %>
  
  Determines form action based on the 
  record. (e.g. post_path or new_post_path)

• Hash#except is the inverse of Hash#slice
• Rake tasks
  

  rake db:create and db:create:all
  rake db:drop and db:drop:all
  rake db:reset
  rake db:rollback (defaults to STEP=1)
  rake db:version
  
  rake routes

• Initializer hooks

  Rails load order:
  1. config/preinitializer.rb
  2. config/environment.rb
  3. config/environments/RAILS_ENV.rb
  4. config/initializers/*.rb

    

 

 

 

http://delynnberry.com/projects/userstamp/

http://svn.techno-weenie.net/projects/plugins/

http://dev.rubyonrails.org/browser/plugins