jhjguxin

# -*- Encoding: utf-8 -*-
import base64
import binascii
import cgi
import hashlib
import hmac
import logging
import time
import urllib
import urlparse

jhjguxin

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

jhjguxin

# coding: utf-8
# This is a Rails init template with MongoDB projects
# 
# Mongoid, Devise, Bootstrap, jQuery, Redis, Cells, will_paginate, Carrierwave, simple_form, Settingslogic, Thin
# 
# Usage
#
# $ rails new app_name -m https://raw.github.com/gist/2168014
#

jhjguxin

after "deploy:restart", "resque:stop_workers"

namespace :resque do
  task :stop_workers, :except => { :no_release => true } do
    run "cd #{current_path} && rake RAILS_ENV=#{rails_env} resque:stop_workers"
  end
end

jhjguxin

echo "Updates packages. Asks for your password."
sudo apt-get update -y

echo "Installs packages. Give your password when asked."
sudo apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev -y

echo "Installs ImageMagick for image processing"
sudo apt-get install imagemagick --fix-missing -y

echo "Installs RVM (Ruby Version Manager) for handling Ruby installation"

jhjguxin

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

jhjguxin

class AddFieldToUser < ActiveRecord::Migration
  ActiveRecord::Base.establish_connection "user_#{Rails.env}"
  def self.up
    add_column :users, :field, :type
  end

  ...
end

jhjguxin

class Notifier
  constructor: ->
    @enableNotification = false
    @checkOrRequirePermission()

  hasSupport: ->
    window.webkitNotifications?  

  requestPermission: (cb) ->
    window.webkitNotifications.requestPermission (cb)

jhjguxin

# -*- encoding: utf-8 -*-
require 'digest/md5'
require 'nestful'

class Smsbao
  attr_accessor :login, :passwd

  def initialize(login, passwd)
    @login = login
    @passwd = Digest::MD5.hexdigest(passwd)

jhjguxin

after "deploy:symlink", "deploy:restart_workers"

##
# Rake helper task.
# http://pastie.org/255489
# http://geminstallthat.wordpress.com/2008/01/27/rake-tasks-through-capistrano/
# http://ananelson.com/said/on/2007/12/30/remote-rake-tasks-with-capistrano/
def run_remote_rake(rake_cmd)
  rake_args = ENV['RAKE_ARGS'].to_s.split(',')
  cmd = "cd #{fetch(:latest_release)} && #{fetch(:rake, "rake")} RAILS_ENV=#{fetch(:rails_env, "production")} #{rake_cmd}"