madwork

class Attachment < ActiveRecord::Base
  mount_uploader :attachment, AttachmentUploader

  # Associations

  belongs_to :attached_item, polymorphic: true

  # Validations

  validates_presence_of :attachment

nowlinuxing

awk '/^Started /{t=$8} /^Completed /{print t,$5,$7,$10}' log/production.log | sort -k 2,2nr | head -20

nightire

Routes

小心地使用 Match（Rails 3 已实现）

Rails 3 提供了 match 方法供我们自定义 routes，然而我们要小心使用它以避免“跨站脚本攻击”（XSS Attack）。比如像这样的 routes：

注：（r3 代表 Rails 3，r4 代表 Rails 4）

# routes.rb

jonleighton

require 'benchmark/ips'

h = { foo: :bar }

Benchmark.ips do |r|
  r.report('#[]')    { h[:foo] }
  r.report('#fetch') { h.fetch(:foo) }
end

shepherdwind

/* 后端数据 */
var data = {
    "10;20;30": {
        price: 5,
        count: 1
    },
    "10;20;31": {
        price: 10,
        count: 2
    },

justinko

Dear Rubyists,

I just lost a contract because of my code in a Rails project.

The specific code in question is related to a "posting a comment" feature. Here are the details:

In this project, "posting a comment" does not simply entail inserting a row into the database. It involves a procedure to yes, insert a row, but also detect its language, check for spam, send emails, and "share" it to Twitter and Facebook. I believe this algorithm should be encapsulated. I do not believe it belongs in a controller or a model. I do not believe Active Record callbacks should be used.

The "senior developer", whom is the stake holder's right hand man, said this:

xdite

module Order
  module Ranking
    def self.included(base)
      base.extend(ClassMethods)
    end

    def update_r_ranking
      t = self
      t.r_ranking = Topic.calculate_ranking(t.pushes_count, t.created_at)
      t.save(:validate => false)