niran

from django.conf import settings
import django.core.mail


class MissingConnectionException(Exception):
    pass

def get_connection(label=None, **kwargs):
    if label is None:
        label = getattr(settings, 'EMAIL_CONNECTION_DEFAULT', None)

sstephenson

var detectBackOrForward = function(onBack, onForward) {
  hashHistory = [window.location.hash];
  historyLength = window.history.length;

  return function() {
    var hash = window.location.hash, length = window.history.length;
    if (hashHistory.length && historyLength == length) {
      if (hashHistory[hashHistory.length - 2] == hash) {
        hashHistory = hashHistory.slice(0, -1);
        onBack();

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))