Wei Zhu yesmeck

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".

WR703N OpenWrt 配置流程

下载安装

访问WR703N在OpenWrt的[Wiki页][wr703n-openwrt]，然后在Flashing一节中找到下载链接：[squashfs-factory.bin][flash.bin]，下载后别忘了[比对md5][md5sum]。^[1]

进入路由器管理界面，出厂配置为http://192.168.1.1，用户名和密码均为admin，然后进入固件更新，选择下载的文件，然后更新。

龍應台：我們的「中國夢」（8月1日北京大學演講講辭）

【明報專訊】第一次接到電話，希望我談談「中國夢」的時候，我的第一個反應是：「一千枚飛彈對準我家，我哪裏還有中國夢啊？」

可是沉靜下來思索，1952年生在台灣的我，還有我前後幾代人，還真的是在「中國夢」裏長大的，我的第一個中國夢是什麼呢？

我們上幼稚園時，就已經穿著軍人的制服、帶著木製的步槍去殺「共匪」了，口裏唱著歌。當年所有的孩子都會唱的那首歌，叫做《反攻大陸去》：

反攻反攻反攻大陸去

Rails flash messages with AJAX requests

original: http://stackoverflow.com/a/10167659/656428

I'm hunting for the best solution on how to handle keeping large sets of DB records "sorted" in a performant manner.

Problem Description

Most of us have work on projects at some point where we have needed to have ordered lists of objects. Whether it be a to-do list sorted by priority, or a list of documents that a user can sort in whatever order they want.

A traditional approach for this on a Rails project is to use something like the acts_as_list gem, or something similar. These systems typically add some sort of "postion" or "sort order" column to each record, which is then used when querying out the records in a traditional order by position SQL query.

This approach seems to work fine for smaller datasets, but can be hard to manage on large data sets with hundreds (or thousands) of records needing to be sorted. Changing the sort position of even a single object will require updating every single record in the database that is in the same sort group. This requires potentially thousands of wri

	# requires socksify gem
	require "socksify"
	require 'socksify/http'

	# use w/ OAuth2 like OAuth2::Client.new(id, secret, connection_opts: { proxy: 'socks://127.0.0.1:9050' })
	class Faraday::Adapter::NetHttp
	def net_http_class(env)
	if proxy = env[:request][:proxy]
	if proxy[:uri].scheme == 'socks'
	Net::HTTP::SOCKSProxy(proxy[:uri].host, proxy[:uri].port)

	#!/usr/bin/env ruby

	# This update hook enforces the following policies
	# 1) release and master branches are fast-forward only
	# 2) feature branches cannot contain merges

	$refname = ARGV[0]
	$oldrev = ARGV[1]
	$newrev = ARGV[2]

	#!/usr/bin/env bash
	apt-get -y update
	apt-get -y install build-essential zlib1g-dev libssl-dev libreadline5-dev libyaml-dev
	cd /tmp
	wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz
	tar -xvzf ruby-1.9.3-p125.tar.gz
	cd ruby-1.9.3-p125/
	./configure --prefix=/usr/local
	make
	make install

	#!/bin/sh

	# Retrieve author information as Git sees it while commiting
	AUTHORINFO=$(git var GIT_AUTHOR_IDENT) \|\| exit 1
	NAME=$(printf '%s\n' "${AUTHORINFO}" \| sed -n 's/^\(.\) <.$/\1/p')
	EMAIL=$(printf '%s\n' "${AUTHORINFO}" \| sed -n 's/^.* <\(.\)> .$/\1/p')

	printf "AUTHORINFO: %s\n" "${AUTHORINFO}"
	printf "NAME: %s\n" "${NAME}"
	printf "EMAIL: %s\n" "${EMAIL}"

	#!/bin/bash

	##########################
	## Check if run as root ##
	##########################

	if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root" 1>&2
	exit 1
	fi