From: hmmm <netcam@...>
Date: 2006-01-11T06:46:04+09:00
Subject: Re: included module and scope confusion

------=_Part_7686_11943162.1136929547534
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Ok here is the final version...

Unit Test:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D
class Bread
  include Crumbs
  def cookies
    @cookies ||=3D Hash.new
  end
  def initialize
    @cookies =3D Hash.new
  end
end

class CrumbTest < Test::Unit::TestCase

  attr :bread

  def setup
    @bread =3D Bread.new
  end

  # Simple add/delete/clear tests
  def test_crumbs_simples
    @params =3D Hash.new
    bite =3Dbread.crumb_new( "test1", "test_action", @params )
    bread.crumb_add(bite)
    bite =3Dbread.crumb_new( "test2", "test_action_2", @params )
    bread.crumb_add(bite)
    bite =3Dbread.crumb_new( "test3", "test_action_3", @params )
    bread.crumb_add(bite)
    assert bite =3D=3D "test3^test_action_3"
    bites =3Dbread.get_crumbs()
    assert_equal bites.length, 3
    bread.crumbs_clear()
    bites =3Dbread.get_crumbs()
    assert_equal bites.length, 0
    bite =3Dbread.crumb_new( "test1", "test_action", @params )
    bread.crumb_add(bite)
    bread.crumb_del(bite)
    bites =3Dbread.get_crumbs()
    assert_equal bites.length, 0
  end

  def test_crumbs_params
    bite =3Dbread.crumb_new( "test1", "test_action",
{"filter"=3D>"s`divx:divx"})
    bread.crumb_add(bite)
    bites =3Dbread.get_crumbs()
    assert_equal bites[0], bite
  end
end


And the crumbs module:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D

module Crumbs
  #----------------------------------------
  #--------------begin/ cookie crumbs mixin
  #----------------------------------------
  MAX_CRUMBS =3D 10

  public
  def crumbs_clear
    if cookies !=3D nil and cookies[:rdf_crumbs] !=3D nil
      cookies.delete :rdf_crumbs
    end
  end

  def crumb_new( controller, action, params )
    cstr =3D controller + "^" + action
    if params !=3D nil && params.keys !=3D nil
      params.keys.each {|p|
        if params[p] !=3D nil
          cstr << "^" << p << "^" << params[p]
        end
      }
    end
    return cstr
  end

  def crumb_add( bite )
    cbs =3D cookies[:rdf_crumbs]
    if (cbs =3D=3D nil or cbs =3D=3D "") or (cbs.instance_of? Array and cbs=
.length=3D=3D0)
      cbs =3D[bite]
    else
      cbs =3D cbs.split("|")
      #don't add a redundant
      if cbs.last =3D=3D bite
        return
      end
      # add to
      cbs << bite
      # cap the cookie queue at 5 using fifo
      if cbs.length > MAX_CRUMBS
        cbs.delete_at(0)
      end
    end

    crumbs_set( cbs )
  end

  def crumbs_set( mouthful )
    cr =3D ""
    mouthful.each { |m|
      if cr =3D=3D ""
        cr =3D m
      else
        cr << "|" << m
      end
    }
    cookies[:rdf_crumbs]=3Dcr
  end

  def crumb_del( bite )
    crs =3D cookies[:rdf_crumbs]
    if crs !=3D nil
      crs =3D crs.split("|")
      c2 =3D""
      crs.each { |c|
        if c !=3D bite
          if c2 =3D=3D ""
            c2 =3D c
          else
            c2 << "|" << c
          end
        end
      }
      cookies[:rdf_crumbs] =3Dc2
    end
  end

  def get_crumbs()
    crs =3D cookies[:rdf_crumbs]
    if crs =3D=3D nil
      return []
    else
      return crs.split("|")
    end
  end

  #----------------------------------------
  #--------------end/ cookie crumbs mixin
  #----------------------------------------
end

------=_Part_7686_11943162.1136929547534--