davidbgk

from django import forms

class EmptyChoiceField(forms.ChoiceField):
    def __init__(self, choices=(), empty_label=None, required=True, widget=None, label=None,
                 initial=None, help_text=None, *args, **kwargs):

        # prepend an empty label if it exists (and field is not required!)
        if not required and empty_label is not None:
            choices = tuple([(u'', empty_label)] + list(choices))

pamelafox

countries = [
{'timezones': ['Europe/Andorra'], 'code': 'AD', 'continent': 'Europe', 'name': 'Andorra', 'capital': 'Andorra la Vella'},
{'timezones': ['Asia/Kabul'], 'code': 'AF', 'continent': 'Asia', 'name': 'Afghanistan', 'capital': 'Kabul'},
{'timezones': ['America/Antigua'], 'code': 'AG', 'continent': 'North America', 'name': 'Antigua and Barbuda', 'capital': "St. John's"},
{'timezones': ['Europe/Tirane'], 'code': 'AL', 'continent': 'Europe', 'name': 'Albania', 'capital': 'Tirana'},
{'timezones': ['Asia/Yerevan'], 'code': 'AM', 'continent': 'Asia', 'name': 'Armenia', 'capital': 'Yerevan'},
{'timezones': ['Africa/Luanda'], 'code': 'AO', 'continent': 'Africa', 'name': 'Angola', 'capital': 'Luanda'},
{'timezones': ['America/Argentina/Buenos_Aires', 'America/Argentina/Cordoba', 'America/Argentina/Jujuy', 'America/Argentina/Tucuman', 'America/Argentina/Catamarca', 'America/Argentina/La_Rioja', 'America/Argentina/San_Juan', 'America/Argentina/Mendoza', 'America/Argentina/Rio_Gallegos', 'America/Argentina/Ushuai

quiver

Pub/Sub pattern with PostgreSQL's LISTEN/NOTIFY command

This is a simple chat-like program using pub-sub pattern, backed by PostgreSQL's LISTEN/NOTIFY command.

Publish

publish message to foo channel from user nickname.

$ python pub.py foo nickname
PUBLISH to channel #foo

ziadoz

<?php
class Post
{
    protected $table = 'posts';
    
    /**
     * You can define your own custom boot method.
     *
     * @return void
     **/

floer32

#!/bin/bash

# Source: http://toomuchdata.com/2012/06/25/how-to-install-python-2-7-3-on-centos-6-2/

# Install stuff #
#################

# Install development tools and some misc. necessary packages
yum -y groupinstall "Development tools"
yum -y install zlib-devel  # gen'l reqs

facultymatt

ACL / Roles + Permissions

https://github.com/djvirgen/virgen-acl Simple and elegant, create your own checks. No middleware?

https://github.com/OptimalBits/node_acl Use as middleware, create your own roles and access. Great choice.

https://github.com/tschaub/authorized Similar to connect roles... but a bit more robust? you can create roles and action, and associate many roles with that action

katowulf

// assumes you add a timestamp field to each record (see Firebase.ServerValue.TIMESTAMP)
// pros: fast and done server-side (less bandwidth, faster response), simple
// cons: a few bytes on each record for the timestamp
var ref = new Firebase(...);
ref.orderByChild('timestamp').startAt(Date.now()).on('child_added', function(snapshot) {
  console.log('new record', snap.key());
});

evanscottgray

docker ps | awk {' print $1 '} | tail -n+2 > tmp.txt; for line in $(cat tmp.txt); do docker kill $line; done; rm tmp.txt

samwize

// # Mocha Guide to Testing
// Objective is to explain describe(), it(), and before()/etc hooks

// 1. `describe()` is merely for grouping, which you can nest as deep
// 2. `it()` is a test case
// 3. `before()`, `beforeEach()`, `after()`, `afterEach()` are hooks to run
// before/after first/each it() or describe().
//
// Which means, `before()` is run before first it()/describe()

cobuso

# Install xapian & python bindings to a virtualenv
#
# Build dependencies are for CentOS
#
# Assumptions:
#   - destination virtualenv is activated
#
# Starting point was this Vagrant box:
#   - http://developer.nrel.gov/downloads/vagrant-boxes/CentOS-6.4-x86_64-v20130731.box
#   - Also installed: