jamescook

def valid_dob? value
  begin
    date = Date.parse value
    if date.year < 1900 || date.year > Date.today.year #some sensible years
      return false
    end
    return true
  rescue ArgumentError  # malformed string
    false

jamescook

 describe Object do
 
   describe "#blank?" do
-    it "should return true for blank objects" do
-      [nil, false, [], {}].each { |object| object.should be_blank }
+    [nil, false, [], {}].each do |blanky|
+      it %Q{should return true for '#{blanky.inspect}' objects} do
+        blanky.blank?.should be_true
+      end
     end

jamescook

# This is the current solution. It merely validates the string's inclusion in
# the given list, and saves it as a string.

ActiveRecord::Schema.define(:version => 20110101000000) do
  create_table "foos", :force => true do |t|
    t.string "bar"
  end
end

class Foo < ActiveRecord::Base

jamescook

require "bigdecimal"
# It would be nice if BigDecimal( BigDecimal("1") ) returned '1' as bigdecimal instead of an argument error, as it generally expects a String. 
#I ran into this problem upgrading a project to rails3 from rails2 that was using the old mysql adapter. In the conversion, we switched to mysql2 which auto converts query results to ruby-land types, hence BigDecimal(sql_decimal_result_that_used_to_be_a_string) will now fail as the adapter returns a BigDecimal. 
# The real world solution was to remove the BigDecimal wrapper around those sql queries, but the below was an interesting exercise nonetheless.


# BigDecimal("1") really means call a special global function 'BigDecimal' defined on Kernel. The C code is straight copy/pasta of BigDecimal.new  :[
# Make it go away
Kernel.send :remove_method, :BigDecimal

jamescook

# Compile CityHash
#g++ -shared city.cc -o libcity.dylib
#

# Figure out the symbol names.. this doesn't look right. Probably user error.
# nm -g libcity.dylib 
#
=begin
0000000000000db7 T __Z10CityHash64PKcm
0000000000001800 T __Z11CityHash128PKcm

jamescook

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;

jamescook

class PhoneNumber < ActiveRecord::Base
  belongs_to :phonable, :polymorphic => true
  validates :number,    :length => { :minimum => 10, :maximum => 12}
  validates_length_of   :area_code, :is => 3  #  205
  validates_length_of   :prefix,    :is => 3  #  867
  validates_length_of   :line,      :is => 4  # 5309

  def number=(val)
    val.gsub! /[^\d]/, '' # Prune dashes, parenthesis, etc
    self.area_code, self.prefix, self.line = val.scan( /(\d{3})(\d{3})(\d{4})/ ).flatten

jamescook

combatlog "/path/to/your_combat_log.txt" do
  find   :target => [:player, :pet]                      # Only show events where the target is a player
  remove :spell  => [:FallDamage, :BuffGain, :BuffFade]  # Filter out any world damage & buff events
end
=> returns instance of EventCollection

jamescook

## My branch that fixes some n+1 madness

Started GET "/dashboard/project?id=219" for 127.0.0.1 at 2011-02-25 16:57:44 -0600
  Processing by Dashboard::BaseController#project as JSON
  Parameters: {"id"=>"219"}
  SQL (0.4ms)  describe `roles_users`
  User Load (0.0ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 11) LIMIT 1
  SQL (0.2ms)  describe `roles_users`
  Role Load (0.1ms)  SELECT `roles`.* FROM `roles` INNER JOIN `roles_users` ON `roles`.id = `roles_users`.role_id WHERE (`roles_users`.user_id = 11 ) AND (`roles`.`name` = 'admin') LIMIT 1
  Role Load (0.0ms)  SELECT `roles`.* FROM `roles` WHERE (name = 'admin' and authorizable_type IS NULL and authorizable_id IS NULL) LIMIT 1

jamescook

diff --git a/lib/rmodeling/dsl.rb b/lib/rmodeling/dsl.rb
new file mode 100644
index 0000000..ff1a795
--- /dev/null
+++ b/lib/rmodeling/dsl.rb
@@ -0,0 +1,30 @@
+module RModeling
+  module DSL
+    def self.included(base)
+      base.send(:include, InstanceMethods)