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# http://stackoverflow.com/a/18684021
# Bootstrap 3
inputs = %w[
  CollectionSelectInput
  DateTimeInput
  FileInput
  GroupedCollectionSelectInput
  NumericInput
  PasswordInput
  RangeInput

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-# prepend example #1 (content_tag)
= f.input :date, :input_html => { :class => 'datepicker' }, :wrapper => :prepend do
  = f.input_field :date
  = content_tag :span, :class => 'input-group-addon' do
    = content_tag :span, nil, :class => 'glyphicon glyphicon-search'

-# prepend example #2 (haml tag)
= f.input :date, :input_html => { :class => 'datepicker' }, :wrapper => :prepend do
  = f.input_field :date
  %span.input-group-addon

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function set_select_selected(value){
  $("#my_field > option").filter(function() {
    return $(this).text() == value //the condition
  }).prop('selected', true);
}

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class IceCube::Occurrence
  def self.evolve(occurrence)
    occurrence.to_time
  end
end

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#ApplicationController

  after_action :set_pages

  def set_pages
    max_size = 5
    session[:pages] = [] unless session[:pages]
    session[:pages].shift while(session[:pages].size >= max_size)
    session[:pages] << request.original_url
  end

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 # ApplicationController

 around_filter :global_request_logging
  def global_request_logging 
    logger.tagged('USERAGENT'){ logger.info "#{request.headers['HTTP_USER_AGENT']}" }
    begin 
      yield 
    ensure 
      logger.info "response_status: #{response.status}"
    end 

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# ActiveLdapExtensions
#
# @author Christian Nennemann
#
module ActiveLdapExtensions
  extend ActiveSupport::Concern

  module Time
    # Convert the time to the FILETIME format, a 64-bit value representing the
    # number of 100-nanosecond intervals since January 1, 1601 (UTC).

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Ruby

Adapter

Builder

Command Pattern

http://reefpoints.dockyard.com/2013/11/05/design-patterns-command-pattern.html

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#!bin/bash

# Requirements: imagemagick, ghostscript, pdftk

#############################################
# create pdf for each png
#############################################

for image in *.png; do
  filename="${image%%.*}".pdf

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# Support for http digest auth
# Discovered here: http://johan.bingodisk.com/public/code/net_digest_auth.rb

require 'digest/md5'
require 'net/http'

module Net
  module HTTPHeader
    @@nonce_count = -1
    CNONCE = Digest::MD5.new("%x" % (Time.now.to_i + rand(65535))).hexdigest