HungYuHei

$('html,body').animate({scrollTop: 540}, 700);

HungYuHei

# For RVM
yum install -y bash curl git libxslt # NOTE: For git you need the EPEL repository enabled
apt-get install bash curl git-core

# OS => Redhat/CentOS/Fedora
yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel
yum install -y make bzip2
yum install -y iconv-devel # NOTE: For centos 5.4 final iconv-devel might not be available :(

# OS => Debian/Ubuntu

HungYuHei

MODEL.where(params[:student].select{|k,v| !v.blank?})
MODEL.where(params[:student].reject{|k,v| v.blank?})

HungYuHei

Array.reject(&:blank?)

HungYuHei

# coding: UTF-8
# 
# 以下为 Rake 任务，功能是将普通文件系统里面的东西转移到 MongoDB GridFS 里面
# 此代码片段来自于 Homeland 项目： https://github.com/huacnlee/homeland/tree/mysql
# 场景：
# 老架构 Linux File Store, Paperclip, hash 目录:"https://github.com/huacnlee/homeland/blob/ca0bdd8ab26da7b780e2dae7eba12b79f41e6d65/config/initializers/paperclip_hashpath.rb"
# 新架构 Mongodb GridFS, Garrierwave, 继续沿用 Paperclip 目录兼容: https://github.com/huacnlee/homeland/tree/7100ce4c506cc2c4387f25e50c533e5bbcac6cc2/app/uploaders
# 整个过程不会修改任何原始数据库和上传文件
#
require 'mongo'

HungYuHei

has_many :doors
accepts_nested_attributes_for :doors

attr_accesible :address, :doors_attributes
# 注意是复数

HungYuHei

[alias]
  st = status
  rso = remote show origin
  # e.g. git graphviz --first-parent master | dotty /dev/stdin
  graphviz = "!f() { echo 'digraph git {' ; git log --pretty='format:  %h -> { %p }' \"$@\" | sed 's/[0-9a-f][0-9a-f]*/\"&\"/g' ; echo '}'; }; f"
  # Pretty log
  lg = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative
  # Print out all commits whose hash starts with a given string
  abbr = "!sh -c 'git rev-list --all | grep ^$1 | while read commit; do git --no-pager log -n1 --pretty=format:\"%H %ci %an %s%n\" $commit; done' -"
  # Two little tweaks to diff

HungYuHei

安装了rvm后，openssl和readline LoadError

当不能load openssl的时候，用以下方法解决
    $ sudo apt-get install libssl-dev  
     
    $ cd ~/.rvm/src/ruby-1.8.7/ext/openssl  
     
    $ ruby extconf.rb  
     
    $ make && make install 

HungYuHei

// VIEW:

<% for category in Category.find(:all) %>  
    <div>  
      <%= check_box_tag "product[category_ids][]", category.id, @product.categories.include?(category) %>  
      <%= category.name %>  
    </div>  
<% end %>

// CONTROLLER:

HungYuHei

[core]
  editor = vim
[user]
  name = HungYuHei
  email = [email protected]
[alias]
  aa = add .
  st = status
  ss = stash
  sss = stash save