sunny0425

# 在服务器的nginx上添加配置
upstream tunnel {
  server 127.0.0.1:3000;
}

server {
  listen 80;
  server_name dev.example.com;
  
  location / {

sunny0425

def quick_sort(arr)
  len = arr.length
  
  return arr if len == 1
  
  old_index = 0
  x = arr[old_index]

  if len == 2
    if arr[1] < x

sunny0425

def bubble_sort(arr)
  len = arr.length

  (0..len).each do |i|
    j = 0
    while j < len - i - 1
      if arr[j] > arr[j+1].to_i
        x = arr[j]
        arr[j] = arr[j+1]
        arr[j+1] = x

sunny0425

//Sprite mixin, works perfectly with standard defines
@mixin icons-sprite($sprite) {
    background-image: sprite-url($icons);
    background-position: sprite-position($icons, $sprite);
    background-repeat: no-repeat;
    overflow: hidden;
    display: inline-block;
    vertical-align: middle;
    margin-right: 3px;
    height: round(image-height(sprite-file($icons, $sprite)));

sunny0425

class Uploader < CarrierWave::Uploader::Base
  version :full do
    process resize_to_fit: [960, 640]
    process :set_color
  end
  
  def set_color
    color = 'gold'

    # convert old.png -alpha off -fill gold -colorize 100% -alpha on new.png

sunny0425

#!/bin/bash

db=$1
uploads=$(dirname $0)/../public/uploads

if [ ! -d $uploads ]; then
  echo "Error: directory 'public/uploads' does not exist"
  exit 1
fi

sunny0425

# access_token = "abcdefg123456hijklmn"
# curl -H "Authorization: OAuth abcdefg123456hijklmn" "https://www.google.com/m8/feeds/contacts/default/full?alt=json&v=3.0"
# https://developers.google.com/google-apps/contacts/v3/
# https://developers.google.com/google-apps/contacts/v3/reference
# OAuth 2.0 Playground: https://developers.google.com/oauthplayground/
# Get a contact photo: http://stackoverflow.com/questions/5983484/google-api-getting-a-contacts-photo
def contact_list
  url = "https://www.google.com/m8/feeds/contacts/default/full"
  response = HTTParty.get(url, 
      :query => {:alt => "json", :"max-results" => "100000000"}, 

sunny0425

Geocoder.coordinates("Shanghai, China")
=> [31.230393, 121.473704]
results = Geocoder.search('31.230393, 121.473704')
r = results.first
r.postal_code

sunny0425

# Here comments are embedded_in letters
$ mongo
> db.letters.aggregate(
  { $unwind : "$comments"},
  { $match: { "comments.created_at": { $gt: new Date('01/01/2012') }  } },
  { $group: {
     _id : "$_id",
     comment_count: { $sum : 1 }
  } },
  { $sort : { comment_count : -1 }},

sunny0425

$ mongo
> db.view_logs.aggregate(
    {$match : {created_at : {$gt : new Date( "12/01/2012" )}}},
    { $group : {
        _id : "$loggable_id",
        cc : { $sum : 1 },
    }},
    { $sort : { cc : -1 }},
    { $limit : 5 }
);