PatrickJS

// Something like this. I haven't tested this file
@Injectable()
export class ApiService {

  constructor(public _http: Http, public _cache: Cache) {

  }
  // whatever domain/feature method name
  getModel(url) {
    // you want to return the cache if there is a response in it. This would cache the first response so if your API isn't idempotent you probably want to remove the item from the cache after you use it. LRU of 1 

tmm1

Ruby 2.1.0 in Production: known bugs and patches

Last week, we upgraded the github.com rails app to ruby 2.1.0 in production.
While testing the new build for rollout, we ran into a number of bugs. Most of
these have been fixed on trunk already, but I've documented them below to help
anyone else who might be testing ruby 2.1 in production.

@naruse I think we should backport these patches to the ruby_2_1 branch and
release 2.1.1 sooner rather than later, as some of the bugs are quite critical.
I'm happy to offer any assistance I can to expedite this process.

timruffles

module HashConverter
  class << self
    def to_underscore hash
      convert hash, :underscore
    end
    def to_camel_case hash
      convert hash, :camelize, :lower
    end
    def convert obj, *method
      case obj

klovadis

// example function where arguments 2 and 3 are optional
function example( err, optionalA, optionalB, callback ) {

    // retrieve arguments as array
    var args = [];
    for (var i = 0; i < arguments.length; i++) {
        args.push(arguments[i]);
    }

    // first argument is the error object

klovadis

var fs = require('fs');

// read a file
function read_the_file(filename, callback) {

    // begin by reading a file
    fs.readFile(filename, function (err, contents) {

        // an error occurred, i.e. the file was not found.
        // instead of throwing an error, skip the other 

klovadis

// include the filesystem module
var fs = require('fs');

// fs.readFile: read a file and all its contents,
//              then call a callback function
fs.readFile('/some/file', function (err, contents) {

    // if any error occurred, throw it
    if (err) throw err;

cee-dub

require 'active_support/core_ext/string/filters'

module PostgresTimestampDefaults
  def add_timestamp_defaults(table_name)
    add_default_now(table_name, :created_at)
    add_default_now(table_name, :updated_at)
    add_updated_at_trigger(table_name)
  end
  
  def add_default_now(table_name, column_name)

shilov

# http://forrst.com/posts/JSON_vs_Marshal_vs_eval_Which_is_the_fastest_fo-6Qy

require 'benchmark'
require 'json'
require 'redis'

# -----------------

puts "Initialize variables.."

attilagyorffy

# Put this file under Rails.root /lib

class CssColourValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    return false unless value
    record.errors[attribute] << (options[:message] || 'is not a valid CSS colour') unless ::HexadecimalColourValidator.matches?(value) or ::WebSafeColourValidator.matches?(value)
  end
end

hotchpotch

# # your config.ru
# require 'unicorn_killer'
# use UnicornKiller::MaxRequests, 1000
# use UnicornKiller::Oom, 400 * 1024

module UnicornKiller
  module Kill
    def quit
      sec = (Time.now - @process_start).to_i
      warn "#{self.class} send SIGQUIT (pid: #{Process.pid})\talive: #{sec} sec"