clemens

<ul>
  <% @users.each do |user| %>
    <li>
      <%= user.name %>
      <% if (orders = user.orders_in_timespan(@start_date, @end_date)).any? %>
        <ul>
          <% orders.each do |order| %>
            <li><%= order.number %></li>
          <% end %>
        </ul>

clemens

redis.zadd('scores:20120701', 10, 'alice')
redis.zadd('scores:20120701',  7, 'bob')
redis.zadd('scores:20120701',  5, 'carol')
# resulting ranking:
# 1 - alice
# 2 - carol
# 3 - bob

redis.zadd('scores:20120702',  7, 'alice')
redis.zadd('scores:20120702',  9, 'bob')

clemens

h = { a: 1, b: 2 }
def foo(a:, b:)
  [a, b]
end

foo(h) #=> [1, 2]

clemens

{
    "Statement": [
        {
            "Effect": "Allow",
            "Action": ["s3:ListBucket" ],
            "Resource": [ "arn:aws:s3:::BUCKETNAME" ]
        },
        {
            "Effect": "Allow",
            "Action": [ "s3:PutObject", "s3:GetObject", "s3:DeleteObject"],

clemens

module Trailblazer; end

module My; end

class Trailblazer::Operation
  def self.inherited(klass)
    *mod_names, klass_name = klass.name.split('::')
    mod = const_get(mod_names.join('::'))

    mod.define_singleton_method(klass_name) do |*args|

clemens

# inspired by http://ariejan.net/2010/08/23/resque-how-to-requeue-failed-jobs

# retry all failed Resque jobs except the ones that have already been retried
# This is, for instance, useful if you have already retried some jobs via the web interface.
Resque::Failure.count.times do |i|
  Resque::Failure.requeue(i) unless Resque::Failure.all(i, 1)['retried_at'].present?
end

# retry all :)
Resque::Failure.count.times do |i|

clemens

tmp[master]% convert logo.jpg -format png -colorspace srgb -profile ../vendor/profiles/sRGBColorSpaceProfile.icm logo.png  
tmp[master]% rm logo.png
tmp[master]% cp logo.jpg logo.png
tmp[master]% mogrify -format png -colorspace srgb -profile ../vendor/profiles/sRGBColorSpaceProfile.icm logo.png  
mogrify: improper image header `../vendor/profiles/sRGBColorSpaceProfile.icm' @ error/png.c/ReadPNGImage/3981.

clemens

class Product < ActiveRecord::Base
  define_index do
    # rest of the index ...

    has merchant_id
    has merchant.company, :as => :merchant_name, :type => :string

    has brand_id, :type => :integer
    has brand.name, :as => :brand_name, :type => :string

clemens

2016-08-01T09:24:58.489044+00:00 heroku[router]: at=info method=GET path="/" host=example.com request_id=e8e2f6a9-b50b-4054-8efc-fb35457558e6 fwd="192.168.0.1" dyno=web.1 connect=0ms service=16ms status=302 bytes=1389

clemens

@keyframes animation-1 {
  /* whatever */
}

@keyframes animation-2 {
  /* whatever */
}

@keyframes animation-3 {
  /* whatever */