romikoops

# /payment_methods/
# /payment_methods/obt/request.rb
# /payment_methods/obt/notification.rb
# /payment_methods/skrill/request.rb
# /payment_methods/skrill/notification.rb
# /payment_methods/base_request.rb
# /payment_methods/base_notification.rb
# /payment_provider.rb

module PaymentMethods

romikoops

module PaymentMethods
  class Base
    def request_url(params)
      raise 'Not implemented'
    end

    def response_notification
      raise 'Not implemented'
    end
  end

romikoops

class QuestionRow
  def initialize(internal_id: nil, chapter: nil, position: nil, text: nil, images: nil, video: nil, explanation: nil,
                 error_points: nil, prerequisite_id: nil, external_id: nil, choices: nil)
    method(__method__).parameters.each do |type, name|
      if type == :key
        instance_variable_set "@#{name}", eval("#{name}")
        self.class.class_eval { attr_reader name}
      end
    end
  end

romikoops

SELECT objects.name FROM objects JOIN object_types ON objects.object_type_id = object_types.object_type_id AND object_types.name = 'Building' WHERE NOT EXISTS (SELECT params.object_id FROM params, attributes WHERE objects.object_id = params.object_id AND attributes.attr_id = params.attr_id AND attributes.name = 'E-mail' AND params.text_value REGEXP '^[0-9a-zA-Z_\.\-]+@.*\.[a-z]+$')

romikoops

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

romikoops

require 'singleton'

class MailgunConnector
  include Singleton

  attr_reader :api_key

  def client(api_key=settings.mailgun_key)
  	if @api_key == api_key && @api_key
  	  @client

romikoops

Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

• add_column
• add_index
• change_column
• change_table
• create_table
• drop_table

romikoops

#!/usr/bin/env ruby

progress = 'Progress ['
1000.times do |i|

# i is number from 0-999
j = i + 1

  # add 1 percent every 10 times
  if j % 10 == 0

romikoops

sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage.original

# for Mountain Lion 10.8.3 - 10.8.4
sudo perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00{1,20})[^\x00]{9}(\x00{1,20}\x54)|$1\x00\x00\x00\x00\x00\x00\x00\x00\x00$2|sg' /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage

# for Mountain Lion 10.8.1-10.8.2 and Lion 10.7.5
#sudo perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00{1,20})[^\x00]{9}(\x00{1,20}\x4D)|$1\x00\x00\x00\x00\x00\x00\x00\x00\x00$2|sg' /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage

# for Mountain Lion 10.8.0 and Lion 10.7.4 BELOW
#sudo perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00{1,20})[^\x00]{9}(\x00{1,20}\x51)|

romikoops

#VBScript
#For J = 1 To N
#term1 = J * (1 - (-1) ^ J * Exp(-Alpha * L)) / (J ^ 2 * 9.869604401 + Alpha ^ 2 * L ^ 2)
#term2 = Exp((-0.5 * implied_volatility ^ 2 * (3.141592654 * J / L) ^ 2 - Beta) * T) 
#term3 = Sin((3.141592654 * J / L) * Log(Asset_Price / Lower_Strike))
#Value(J) = term1 * term2 * term3
#Agg = Agg + Value(J) 
#Next J