emmanuel

    // Shared Experience textarea blocker
    $('#experience textarea#experience_body').bind('keypress', function(){
      $('a').attr('rel', 'blocked');
    });
    // Be alert! The world needs more Lerts.
    $('a[rel="blocked"]').click(function(){
      alert('Sorry, This is just a demo!');
      return false;
    });

emmanuel

$.extend({
	param: function( a, nest_in ) {
		var s = [ ];
		// check for nest
		if (typeof nest_in == 'undefined') nest_in = false;
		
		function nested(key) {
			if (nest_in)
				return nest_in + '[' + key + ']';
			else

emmanuel

class Parent
  include DataMapper::Resource

  def self.default_repository_name
    :parent_repo
  end

  property :id, Serial

  has n, :children, :model => "StiBase"

emmanuel

require 'rubygems'
# puts ENV["GEM_HOME"]
require 'ruby-debug'
require 'datamapper'

DataMapper::Logger.new(STDOUT)
DataMapper.setup(:default, "sqlite::memory:")

class Page
  include DataMapper::Resource

emmanuel

-- Retrieve descendants
-- ====================
-- retrieve descendants of #4

SELECT c.*
FROM Comments AS c
  JOIN TreePaths AS t ON c.comment_id = t.descendant
WHERE t.ancestor = 4;

-- Retrieve ancestors

emmanuel

require "rubygems"
require "datamapper"

DataMapper::Logger.new($stdout, :default)
DataMapper.setup(:default, "sqlite::memory:")

class Source
  include DataMapper::Resource

  property :id, Serial

emmanuel

DataMapper::Logger.new($stdout, :default)
DataMapper.setup(:default, "sqlite::memory:")

class Author
  include DataMapper::Resource

  property :id,     Serial
  property :email,  String

  has n, :posts

emmanuel

# TODO: shouldn't Validations use `before :save` to intercept the save call?
#   (for DataMapper::Resource instances, not validated plain Ruby objects)
# 
# Admittedly, it may not be possible to support as 'clean' of an interface
# from the caller's perspective (ie., being able to specify the validation
# context with an arg to the #save/#update methods vs in some other manner).
# 
# However, changing the method signature of #save and #update is problematic.
# Also, I'm not sure how often an explicit validation context is used,
# and on that basis I question whether the interface should be designed for

emmanuel

begin
	begin
		raise "test"
	rescue Exception => e
		puts "Rescuing #{e.inspect}"
	end
ensure
	puts "Ensuring #{e.inspect}"
  raise e if e
end

emmanuel

require "rubygems"
require "datamapper"

DataMapper.setup(:default, "sqlite::memory:")
DataMapper::Logger.new(STDOUT, :debug)

class Recipe
  include DataMapper::Resource
  
  property :id,           Serial