lesniakania

function getInternetExplorerVersion()
{
  var rv = -1;
  if (navigator.appName == 'Microsoft Internet Explorer')
  {
    var ua = navigator.userAgent;
    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
  }

lesniakania

cloud = Panda::Cloud.find(cloud_id)

videos = []
page = 1
begin
  videos_batch = cloud.videos.all(status: :processing, page: page, per_page: 100)
  videos += videos_batch
  page += 1
end while not videos_batch.empty?

lesniakania

require 'panda'

Panda.configure do
  access_key "ACCESS_KEY"
  secret_key "SECRET_KEY"
  cloud_id "CLOUD_ID"
  api_host "api.pandastream.com"
  api_port "443"
end

lesniakania

def configure_panda(cloud_id) = nil​
  Panda.configure do
    access_key PANDA_ACCESS_KEY
    secret_key PANDA_SECRET_KEY
    cloud_id cloud_id if cloud_id
    api_host PANDA_API_HOST
  end
end

lesniakania

Gauguin::Painting.new("path/to/image.png").palette
# =>
# {
#    rgb(204, 204, 204)[0.5900935269505287] => [
#      rgb(77, 77, 77)[7.383706620723603e-05],
#      ...
#      rgb(220, 220, 220)[7.383706620723603e-05]
#    ],
#    rgb(0, 0, 0)[0.40990647304947003] => [
#      rgb(0, 0, 0)[0.40990647304947003],

lesniakania

gem 'gauguin'

lesniakania

painting.recolor(palette, 'path/where/recolored/file/will/be/placed')

lesniakania

class User < ActiveRecord::Base
  validates :username, :password, :email, :phone, :age, presence: true

  validates :username,
    length: { within: 5..20 },
    uniqueness: true,
    format: { with: /\A\w*\z/ }

  validates :password, length: { within: 5..20 }
  validates :email, format: { with: /.+@.+\..+/i }

lesniakania

class User < ActiveRecord::Base
  Validator::Factory.register(self, UserValidator)
  validates_with Validator
 
  # lots of other stuff that usually is here
end

lesniakania

class Validator < ActiveModel::Validator
  class Factory
    @validators = {}

    def self.register(klass, validator)
      @validators[klass] = validator
    end

    def self.build(record)
      validator_class = @validators[record.class]