3014zhangshuo

# in your spec helper...

require "pry"
require "redis"
require "mock_redis"

RSpec.configure do |config|
  config.before(:each) do
    mock_redis = MockRedis.new
    allow(Redis).to receive(:new).and_return(mock_redis)

3014zhangshuo

# File: /etc/postfix/header_checks
# Add to the bottom of the file

/To:.*support@myapp.com.*/ FILTER send_to_my_app:

3014zhangshuo

# setup some input parameters
encrypted_decrypted = 'some string to encrypt or decrypt'
action = :encrypt # set to :encrypt or :decrypt
secret_key = 'abc123' # define shared secret key here

# encryption / decryption code...
cipher = OpenSSL::Cipher.new('AES-128-ECB')
if action == :decrypt
  cipher.key = [secret_key].pack('H*')
  cipher.padding = 0

3014zhangshuo

Bulk delete of documents from Elasticsearch in Ruby on Rails

When someone deletes his account we need to delete data from the elasticsearch. All account data are removed by bulk SQL query but elasticsearch-model cannot be notified to destroy related elasticsearch documents. I had to find out how to do it. It had to be done in the background job otherwise it could take too long.

After looking around in the source code of elasticsearch ruby gems, Elastcisearch API and with a little help from Karmi (author of elasticsearch gems) I found a solution. It consists of the following three things.

• Elasticsearch scroll-scan API (thanks Karmi for suggesting it)
• Elasticsearch bulk API
• Elasticsearch gem

3014zhangshuo

#! usr/bin/ruby
require 'uri'
require 'net/http'
require 'json'

def getRequest(url)
	uri = URI.parse(url)
	http = Net::HTTP.new(uri.host, uri.port)
	request = Net::HTTP::Get.new(uri.request_uri)
	request["Accept"] = "application/json"

3014zhangshuo

#!/usr/bin/env ruby
require 'spreadsheet'

# Begin Test
print "Spreadsheet Test\n"

# Create the rows to be inserted
row_1 = ['A1', 'B1']
row_2 = ['A2', 'B2']

3014zhangshuo

# Activate the gem you are reporting the issue against.
gem 'activerecord', if ENV['RAILS_3'] then '3.2.19' else '4.1.6' end
require 'active_record'
require 'minitest/autorun'
require 'logger'

# Ensure backward compatibility with Minitest 4
Minitest::Test = MiniTest::Unit::TestCase unless defined?(Minitest::Test)

# This connection will do for database-independent bug reports.

3014zhangshuo

SETTING = {
  email: 'admin@udesk.cn',
  api_token: 'ccd6ed3c-1da5-4173-aea3-e8a7ed74f68e',
  url_base: 'https://demo.dog.tryudesk.com'
}

SETTING = {
  email: 'admin@brazil.udesk.cn',
  api_token: '2212c179-bc9e-433c-8cb9-ae6004e64848',
  url_base: 'https://udesk-rd-bj-01.udesk.cn'

3014zhangshuo

result = Hash.new { |h,k| h[k] = Hash.new(0) }

CSV.read("file_v1.csv")[1..-1].each do |row|
  group_id = row[1]
  black = !row[2].to_i.zero?

  result[group_id][:total] += 1
  result[group_id][:black] += 1 if black
end

3014zhangshuo

def hi name
  p 'hi ' + name
end

hi "zhangshuo"

method(:hi).call("good man")

def hi_back v, name
  v.call name.upcase