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@d11wtq
d11wtq / enum.sql
Created October 26, 2012 10:07
Renaming an ENUM label in PostgreSQL
/*
Assuming you have an enum type like this.
You want to rename 'pending' to 'lodged'
*/
CREATE TYPE dispute_status AS ENUM('pending', 'resolved', 'open', 'cancelled');
BEGIN;
ALTER TYPE dispute_status ADD VALUE 'lodged';
UPDATE dispute SET status = 'lodged' WHERE status = 'pending';
@media only screen and (min-width: 320px) {
/* Small screen, non-retina */
}
@media
only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 320px),
only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 320px),
only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 320px),
@zhouming
zhouming / MY_Session.php
Created September 8, 2012 05:51
Use redis in Codeigniter Session.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Session extends CI_Session{
private $sess_use_redis = TRUE;
private $redis = '';
public function __construct($params = array()) {
//parent::__construct();
$this->CI =& get_instance();
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active October 29, 2025 19:10
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@ndarville
ndarville / secret-key-gen.py
Created August 24, 2012 17:01
Generating a properly secure SECRET_KEY in Django
"""
Two things are wrong with Django's default `SECRET_KEY` system:
1. It is not random but pseudo-random
2. It saves and displays the SECRET_KEY in `settings.py`
This snippet
1. uses `SystemRandom()` instead to generate a random key
2. saves a local `secret.txt`
@sgmurphy
sgmurphy / url_slug.php
Created July 12, 2012 15:52
URL Slugs in PHP (with UTF-8 and Transliteration Support)
<?php
/**
* Create a web friendly URL slug from a string.
*
* Although supported, transliteration is discouraged because
* 1) most web browsers support UTF-8 characters in URLs
* 2) transliteration causes a loss of information
*
* @author Sean Murphy <[email protected]>
* @copyright Copyright 2012 Sean Murphy. All rights reserved.
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active October 29, 2025 11:48
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@akhenakh
akhenakh / tools.py
Created June 19, 2012 14:47
flask jsonify with support for MongoDB from tools import jsonify
try:
import simplejson as json
except ImportError:
try:
import json
except ImportError:
raise ImportError
import datetime
from bson.objectid import ObjectId
from werkzeug import Response
@supairish
supairish / gist:2951524
Created June 18, 2012 23:58
Nginx - how to limit requests by User Agent
http {
map $http_user_agent $limit_bots {
default '';
~*(google|bing|yandex|msnbot) $binary_remote_addr;
}
limit_req_zone $limit_bots zone=bots:10m rate=1r/m;
server {
@nrk
nrk / command.txt
Created April 2, 2012 19:19
Using ffprobe to get info from a file in a nice JSON format
ffprobe -v quiet -print_format json -show_format -show_streams "lolwut.mp4" > "lolwut.mp4.json"