huobazi

#!/bin/bash

# *** RUN AS ROOT ***

# Define help function
function help(){
    echo "Node JS Install Script - Install Node JS";
    echo "Usage example:";
    echo "install-node (-v|--version) string [(-f|--force)] [(-p|--platform) string] [(-a|--arch) string]";
    echo "Options:";

huobazi

if ! type "brew" > /dev/null; then
  ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)";
fi
brew tap phinze/homebrew-cask && brew install brew-cask;
brew cask install virtualbox;
brew cask install vagrant;
brew cask install vagrant-manager;

huobazi

Polymorphic Associations reversed

It's pretty easy to do polymorphic associations in Rails: A Picture can belong to either a BlogPost or an Article. But what if you need the relationship the other way around? A Picture, a Text and a Video can belong to an Article, and that article can find all media by calling @article.media

This example shows how to create an ArticleElement join model that handles the polymorphic relationship. To add fields that are common to all polymorphic models, add fields to the join model.

huobazi

1. 判定是否在微信中打开

def wechat?
    request.user_agent =~ /MicroMessenger/i 
end

2. 分别调用 微信网页扫码 或 公众号授权

huobazi

using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Optimization;

public static class HtmlHelperExtensions
{
    public static IHtmlString InlineScripts(this HtmlHelper htmlHelper, string bundleVirtualPath)
    {
        return htmlHelper.InlineBundle(bundleVirtualPath, htmlTagName: "script");

huobazi

-- Entity Attribute Value Model in Postgres

CREATE TABLE public.entity (
	id      serial      NOT NULL,
	type    varchar(25) NOT NULL,
	PRIMARY KEY (id)
);

CREATE TABLE public.defined_attributes (
	key             varchar(25)   NOT NULL,

huobazi

-- clean up database from previous test
DROP SCHEMA public CASCADE;
CREATE SCHEMA public;

-- create EAV tables
CREATE TABLE entity ( 
  id           SERIAL PRIMARY KEY, 
  name         TEXT, 
  description  TEXT
);

huobazi

function getFnName(fn) {
  var f = typeof fn == 'function';
  var s = f && ((fn.name && ['', fn.name]) || fn.toString().match(/function ([^\(]+)/));
  return (!f && 'not a function') || (s && s[1] || 'anonymous');
}

console.log(getFnName(String)); // 'String'
console.log(getFnName(function test(){})); // 'test'

console.log(getFnName(function (){})); // 'anonymous'

huobazi

trusty(14.04)

deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse

huobazi

good, 你已经有了一个自己的shadowsocks代理了，现在想要把这个代理公布出去给所有人分享。
但是没有两个小时，代理就没法使用了，为什么？因为你需要额外注意以下事项（以下步骤需要比较高的linux技能）
本文只关注于确保shadowsocks服务还“活着”，如果你希望让其跑得更快，请参考 
https://github.com/clowwindy/shadowsocks/wiki/Optimizing-Shadowsocks

1、 shadowsocks的timeout设置
超时时间越长，连接被保持得也就越长，导致并发的tcp的连接数也就越多。对于公共代理，这个值应该调整得小一些。推荐60秒。

2、 检查操作系统的各种限制
对于openvz的vps，特别需要检查一下