leikind

#!/bin/env ruby

# Quick and dirty script to merge N small mp3 files in the current directory into files with duration ~30 minutes
# The power of Unix + the power of Ruby :)

# Question: how to reduce the number of used tools (mplayer, sox, and lame) ?

i = 1
threshold = 60 * 30

leikind

$ cat in.txt 
1000,1030
1000,1040
1040,1000
3000,3010
3010,3000


# with ruby
cat in.txt  | ruby -n -e 'BEGIN{@a = {}}; x,y = $_.chomp.split(","); if y && x && ! y.empty? then @a[x] = y; puts $_  ; end ; END{@a.keys.each{|k| puts k + "," + k}}'

leikind

# export PS1="\u:\w$ "

parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ \1/'
  # git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}

# no highlight
# export PS1="\u:\w \$(parse_git_branch)$ "
# git branch in bold

leikind

real_time1 = Benchmark.measure { # Written by consultants
  # Perform a query for every zone getting companies in that zone,
  # initialize all active records, merge results into one list, remove duplicates
  @advertisers = @zones.map{ |z| z.companies.available }.flatten.uniq
}.real
    
real_time2 = Benchmark.measure { # Written by me
  @_advertisers = Company.available.find(:all, :include => :zones, :conditions => ['zones.id in (?)', @zones])
}.real

leikind

  def create
    Order.transaction do
      ArticlePurchase.transaction do
        @order = create_order # can go wrong due to programmers' mistakes
        @order.purchase  # can go wrong due to programmers' mistakes
        flash[:notice] = :order_successfully_created.l
      end
    end
    redirect_to account_root_path
  rescue  # Intercepting ALL errors, so the user is

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elsif @advertiser=Company.find(params[:filter][:advertiser_id])
       @point_transactions = current_user.point_transactions_as_target.find_all_by_keyword("AD_REDEEMING") +
                             current_user.point_transactions_as_source.find_all_by_keyword("ARTICLE_PURCHASE") +
                             current_user.point_transactions_as_target.find_all_by_keyword("WHITE_TRANSACTION") +
                             current_user.point_transactions_as_source.find_all_by_keyword("WHITE_TRANSACTION") +
                             current_user.point_transactions_as_target.find_all_by_keyword("CARD_INFO") +
                             current_user.point_transactions_as_source.find_all_by_keyword("CARD_INFO") +
                             current_user.point_transactions_as_target.find_all_by_keyword("CARD_POSITIVE") +
                             current_user.point_transactions_as_source.find_all_by_keyword("CARD_POSITIVE")

leikind

  desc 'generate  add_index declarations  for all foreign key fields'
  task :indexes => :environment do

    files = nil
    Dir.chdir(File.join(RAILS_ROOT, "app/models" )) do
      files = Dir["*.rb"]
    end

    models = []
    files.each do |m|

leikind

require 'rubygems'
require 'activesupport'

class Contract

  attr_reader :start_date, :renew_date

  def initialize(start_date, renew_date)
    @start_date, @renew_date = start_date, renew_date
  end

leikind

class HashWithIndifferentAccess
  def get_to(*keys)
    subhash = self
    keys.each do |k|
      subhash = subhash.try(:[], k)
      return nil if subhash.nil?
    end
    if block_given? && subhash.any?
      yield subhash
    else

leikind

function WiceGridProcessor(name, base_request_for_filter, base_link_for_show_all_records,
                      link_for_export, parameter_name_for_query_loading, parameter_name_for_focus, environment){

   this.checkIfJsFrameworkIsLoaded = function(){
     if (! jQuery){
       alert("jQuery not loaded, WiceGrid cannot proceed!")
     }
   }

  this.checkIfJsFrameworkIsLoaded();