mayo

module MarcasDeTiempo
  def self.included(base)
    # Propiedades especiales
    # Permite guardar la fecha y hora de eliminación del recurso
    property :deleted_at, ParanoidDateTime
    # Permite conocer cuándo fue creado y cuándo fue modificado el recurso
    property :created_at, DateTime
    property :updated_at, DateTime
  end
end

mayo

have_header: checking for win32.h... -------------------- no

"mingw32-gcc -E -I. -I/usr/home/mayo/.rake-compiler/ruby/ruby-1.8.6-p287/lib/ruby/1.8/i386-mingw32 -I/usr/home/mayo/do/do_postgres/ext/do_postgres_ext -I/usr/home/mayo/do/cross/postgres-8_2_11/pgsql/include/server/port/win32 -I/usr/home/mayo/do/cross/postgres-8_2_11/pgsql/include   -g -O2   conftest.c -o conftest.i"
conftest.c:1:19: error: win32.h: No such file or directory
checked program was:
/* begin */
1: #include <win32.h>
/* end */

...

mayo

#include <libpq-fe.h>
#include <postgres.h>
#include <mb/pg_wchar.h>
#include <catalog/pg_type.h>

/* Undefine constants Postgres also defines */
#undef PACKAGE_BUGREPORT
#undef PACKAGE_NAME
#undef PACKAGE_STRING
#undef PACKAGE_TARNAME

mayo

Luis@KEORE (D:\Users\Luis\projects\oss\datamapper\do.git\do_postgres\ext\do_postgres_ext)
$ ruby extconf.rb --with-pgsql-dir=d:/users/luis/projects/oss/_libs/pgsql --with-pgsql-server-include=D:/users/luis/projects/oss/_libs/pgsql/include/server --with-pgsql-win32-include=d:/users/luis/projects/oss/_libs/pgsql/include/server/port/win32

mayo

require 'rubygems'
require 'dm-core'
require 'dm-serializer'

class Test
  include DataMapper::Resource

  property :id, Serial
end

mayo

class User
  require DataMapper::Resource

  property :id, Serial
  property :...

  has n, :interests
  has n, :questions, :through => :interests
end

mayo

b = Book.get(1)

b.latest_page #=> yields Page with id 3, as if I did Page.first(:order => [ :book_id.desc ])

#if I replace the line in latest_page with
self.pages.first(:book_id => self.id, :order => [ :created_at.desc ])

b.latest_page #=> yields Page with id 2, as expected

#if I replace the line in latest_page with

mayo

A basic example of using mbostock's weekday.js gist to to plot only weekdays using a linear scale. The resulting charts will not show gaps where weekends would be.

mayo

Expanding on mbostock's weekday.js and my Weekdays gists by adding adaptive tick mark format and wrapping it all up in a dayselect scale (d3.scale.dayselect).

View at bl.ocks.org;

mayo

Playground gist for bl.ocks.org