tom-lord

 Limit  (cost=0.11..4232.55 rows=1000 width=4)                   
   ->  Index Scan using lease_deals_pkey on lease_deals  (cost=0.11..3130311.24 rows=739600 width=4)
         Filter: ((expired_at IS NULL) AND (updated_at < '2018-10-09 09:26:33.507679'::timestamp without time zone) AND (dealership_id = 5678))

tom-lord

# Snippets taken from:
# https://github.com/rails/rails/blob/fc5dd0b85189811062c85520fd70de8389b55aeb/activerecord/lib/active_record/relation/batches.rb#L201

def in_batches(of: 1000, start: nil, finish: nil, load: false, error_on_ignore: nil)
  relation = self
  # ...
  batch_limit = of  
  # ...
  relation = relation.reorder(batch_order).limit(batch_limit)
  relation = apply_limits(relation, start, finish)

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class LeaseDeal < ApplicationRecord
  def self.expire_all(time: Time.current, batch_size: 1000)
    ids = pluck(:id)
    ids.each_slice(batch_size) do |ids_slice|
      unscoped.where(id: ids_slice).update_all(expired_at: time)
    end
  end
end

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class AddOrderedDealershipIdExpiredAtIndexToLeaseDeals < ActiveRecord::Migration[5.2]
  def change
    remove_index :lease_deals, name: :index_lease_deals_on_dealership_id_and_expired_at, algorithm: :concurrently

    add_index :lease_deals, %i[id dealership_id expired_at], where: 'expired_at IS NULL', using: :btree, order: { id: :asc }, algorithm: :concurrently
  end
end

tom-lord

# German rails_admin translation

de:
  admin:
    home:
      name: "Home"
    pagination:
      previous: "« Vor"
      next: "Zurück »"
      truncate: "…"

tom-lord

class Array
  def no_duplicates?
    tally.values.all? {|v| v == 1 }
  end
end

class Card
  attr_reader :picture, :suit

  def initialize(picture, suit)

tom-lord

r.thebutton = {
  _setTimer:function(e){
    var t = "00000",
      n = (e > 0 ? e : 0).toString(),
      i = t.substring(0, t.length - n.length) + n;
    for(var s = 0; s < 4; s++)
      r.thebutton._timerTextNodes[s].nodeValue = i[s];
    e%100 === 0 && r.thebutton._drawPie(e, 6e4)
  },
  _countdown:function(){

tom-lord

class Array
  alias ⏪  <<
  alias 🈴 concat
  alias 💧 drop
  alias 🔁 each
  alias 🈳❓ empty?
  alias 🍀 sample
  alias 🎲 sample
  alias ♻️ shuffle
  alias 👈 push