dblack

class Person
  attr_accessor :first_name, :last_name

  def whole_name
    first_name + " " + last_name
  end
end

p = Person.new
p.first_name = "David"

dblack

class A           # top-level A
end

module M
  module ClassMethods
    def create_an_a
      A.new        # top-level A
    end
  end

dblack

# Forked from trevoke

require 'csv'
require 'yaml'
require 'rails/all'
require 'active_record'
require 'active_support'
require 'sqlite3'

dblack

This is from the end of weakref.rb:

if __FILE__ == $0
#  require 'thread'
  foo = Object.new
  p foo.to_s                    # original's class
  foo = WeakRef.new(foo)
  p foo.to_s                    # should be same class
  ObjectSpace.garbage_collect
  ObjectSpace.garbage_collect

dblack

I'm puzzled by the behavior of take_while and drop_while when called without
a block. They return enumerators -- that part I understand -- but I'm not
understanding how those enumerators behave. 

Here's what I mean:

>> enum = [1,2,3,4,5].take_while
=> #<Enumerator: [1, 2, 3, 4, 5]:take_while>
>> enum.next
=> 1

dblack

Update: I figured it out. I was loading the .js file twice. 




In the view:

<%= link_to "Toggle comment", "#", :id => "toggle-comment" %>
<p id="comment" style="display:none;">Comment: <%= @scratchpad.comment %></p>

dblack

def max_length_histogram(str)
  Hash.new(0).tap do |hist|
    str.scan(/((.)\2*)/) do |substring, letter|
      hist[letter] = [ hist[letter], substring.size ].max
    end
  end
end

def longest_run(str)
  max_length_histogram(str).max_by {|letter, n| n }

dblack

ree-1.8.7-2010.02 :001 > res = Team.search { keywords "Mets" }
 => <Sunspot::Search:{:defType=>"dismax", :q=>"Mets", :rows=>30, :start=>0,
:fl=>"* score", :qf=>"name_text", :fq=>["type:Team"]}>
ree-1.8.7-2010.02 :002 > res.results
 => [#<Team _id: BSON::ObjectId('4dfa2262508c319700000001'), name: "Mets">]
ree-1.8.7-2010.02 :003 > Team.reindex(:batch_size => false)
 => {"responseHeader"=>{"QTime"=>137, "status"=>0}}
ree-1.8.7-2010.02 :004 > res = Team.search { keywords "Mets" }
 => <Sunspot::Search:{:defType=>"dismax", :q=>"Mets", :rows=>30, :start=>0,
:fl=>"* score", :qf=>"name_text", :fq=>["type:Team"]}>

dblack

Why does the app always take the HTML/index.html.erb path when the link is clicked?
Does index.js.erb not work any more?

# in controller
  def index
    @page = Page.find(params[:page_id])
    @ideas = @page.ideas
    respond_to do |format|
      format.js
      format.html

dblack

1. Without the change to line 7 of scripts/rvm:

$ rvm default
$ ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [i386-darwin9.8.0]
$ sh
sh: /Users/dblack/.rvm/scripts/rvm: line 7: syntax error near unexpected token
`<'
sh: /Users/dblack/.rvm/scripts/rvm: line 7: `\grep -q '^rvm ()' < <( declare -f
) # Is RVM is a shell function?'