acorcutt

<%-# items is an array on object e.g. object.items = [1,2,3], we want to display as list of fields, and post back as an array - note the backwards ][ which makes is do this! -%>
<% @object.items.each do |i| %>
  <%=f.text_field "items][",:value=>i,:id=>"item-#{SecureRandom.uuid}" %>
<% end %>

tsabat

Prereq:

apt-get install zsh
apt-get install git-core

Getting zsh to work in ubuntu is weird, since sh does not understand the source command. So, you do this to install zsh

wget https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | zsh

henrik

Install ImageMagick for image conversion:

brew install imagemagick

Install tesseract for OCR:

brew install tesseract --all-languages

Or install without --all-languages and install them manually as needed.

kennethreitz

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

kana

--- src/main.c~ 2012-10-23 12:35:34.000000000 +0900
+++ src/main.c  2012-12-04 18:42:25.000000000 +0900
@@ -2315,6 +2315,7 @@
                        mch_errmsg("\"\n");
                        mch_exit(2);
                    }
+                   setvbuf(scriptout, NULL, _IONBF, 0);
                    break;

 #ifdef FEAT_GUI_W32

dmarx

import praw # simple interface to the reddit API, also handles rate limiting of requests
import re
from collections import deque 
from time import sleep

USERNAME  = "Your username here"
PASSWORD  = "Your password here"
USERAGENT = "Your useragent string here. It should include your /u/username as a courtesy to reddit"

r = praw.Reddit(USERAGENT)

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

hanleybrand

Installing imposm

So, according to the imposm docs:

Imposm runs with Python 2.5, 2.6 and 2.7 and is tested on Linux and Mac OS X. Other dependencies are:

psycopg2: PostgreSQL adapter for Python

Tokyo Cabinet: File-based key-value database for the internal cache

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results