hadrienblanc

Sidekiq.redis { |r| puts r.flushall }

hadrienblanc

ActiveRecord::Base.logger.level = 1

hadrienblanc

class MyParser < Nokogiri::XML::SAX::Document
  def initialize
  end

  def start_element(name, attrs = [])
    puts attrs.inspect
  end

  def characters(string)
  end

hadrienblanc

# Returns nils and strings
Model.where(:url.ne => "").count 

# Returns strings and ""
Model.where(:url.ne => nil).count

# Returns strings, nils and ""
Model.where(:url.ne => ["", nil]).count 

Model.where(:url.nin => ["", nil]).count

hadrienblanc

Fizz Buzz ruby

Objective

Write a fonction or an object of your design called FizzBuz that takes input integer n and prints all the numbers from 1 up to n in a new line.

• if the number is divisible by 3 then print "Fizz"
• if the number is divisible by 5 then print "Buzz"
• if the number is divisible by both 3 and 5, print "FizzBuzz". Otherwise just print the number.

hadrienblanc

Assuming that total_seconds = 3600

Option 1:

distance_of_time_in_words(total_seconds) #=> "about 1 hour"

Option 2:

Time.at(total_seconds).utc.strftime("%H:%M:%S") #=> "01:00:00"

hadrienblanc

x = [1, 1, 2, 4]
y = [1, 2, 2, 2]

# intersection
x & y            # => [1, 2]

# union
x | y            # => [1, 2, 4]

# difference

hadrienblanc

heroku config:get TZ -a heroku_app_name  
heroku config:add TZ=Paris  -a heroku_app_name

hadrienblanc

heroku builds:cancel BUILD_ID -a application

hadrienblanc

class Testo

  def run
    puts "hello world !"
    puts my_var
    puts my_var
    puts my_var
  end