ZhangHanDong

# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com

# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below)
module Player
	describe MovieList, "with optional description" do
		  
	  it "is pending example, so that you can write ones quickly"
	  
	  it "is already working example that we want to suspend from failing temporarily" do
		pending("working on another feature that temporarily breaks this one")

ZhangHanDong

Rails 開發注意要點

About Ruby Syntax

• 編輯器設定 soft tab (space=2)，以 2 格空白符號做為程式內縮距離（不分語言）。
• 函式如果只有一個參數，就不強制打()
• 函式如果有二個以上的參數，通通都要有 ()
  • (避免發生奇怪的paser bug跟保持專案一致性)
• 字串限定用雙引號包覆
• 善用 "#{str1} #{str3} " 等字串改寫技巧取代不需要的字串加法。

ZhangHanDong

# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com

# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below)
module Player
	describe MovieList, "with optional description" do
		  
	  it "is pending example, so that you can write ones quickly"
	  
	  it "is already working example that we want to suspend from failing temporarily" do
		pending("working on another feature that temporarily breaks this one")

ZhangHanDong

MacBook 裝機步驟

警告: 請絕對不要跳著裝！

系統套件

• Software Update
• Install Xcode ( Mac OS X Install CD 那一塊的 >> 選擇安裝）

• Install Homebrew http://github.com/mxcl/homebrew

ZhangHanDong

# with multiple collections + commands for renaming back the collections

require 'mongo'

# Stop writing to your database.
# Then, for each collection:
# Specify the DB and COLLECTION you want to convert.
# Will insert all modified documents into a new collection
# called 'new_' + old_collection_name.
# Then you can delete the old collection and rename the new one

ZhangHanDong

The MONGOID Cheat Sheet

( Source: the mongoid cheatsheet )

Example

  class User

include Mongoid::Document

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db/*.sqlite3
log/*.log
tmp/**/*
bin/*
vendor/gems/ruby/1.8/*
!vendor/gems/ruby/1.8/cache/

ZhangHanDong

# Rake task to launch multiple Resque workers in development/production with simple management included

require 'resque/tasks'    # Require Resque tasks

namespace :workers do

  # = $ rake workers:start
  #
  # Launch multiple Resque workers with the Rails environment loaded,
  # so they have access to your models, etc.

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PID_DIR       = '/srv/myapp/shared/pids'
RAILS_ENV     = ENV['RAILS_ENV'] = 'production'
RAILS_ROOT    = ENV['RAILS_ROOT'] = '/srv/myapp/current'
BIN_PATH      = "/home/rails/.rvm/gems/ree-1.8.7-2010.02/bin"

God.log_file  = "#{RAILS_ROOT}/log/god.log"
God.log_level = :info

%w(unicorn resque).each do |config|
  God.load "#{RAILS_ROOT}/config/god/#{config}.god"

ZhangHanDong

# Simple bijective function
#   Basically encodes any integer into a base(n) string,
#     where n is ALPHABET.length.
#   Based on pseudocode from http://stackoverflow.com/questions/742013/how-to-code-a-url-shortener/742047#742047

ALPHABET =
  "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".split(//)
  # make your own alphabet using:
  # (('a'..'z').to_a + ('A'..'Z').to_a + (0..9).to_a).shuffle.join