bruth

# Copyright (C) 2011 by Blade Polska s.c.
# Full rights belong to Tomek Kopczuk (@tkopczuk).
# www.askthepony.com
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

bruth

class Song(VersionedModel):
    """
    >>> song = Song(title='Here Come the Sun')
    >>> song.save()
    >>> cache.get('music.song-1,1)
    1
    >>> song.title = 'Here Comes the Sun'
    >>> song.save()
    >>> cache.get('music.song-1,1)
    >>> cache.get('music.song-1,2)

bruth

from datetime import datetime
from django.db import models
from django.core.cache import cache

class ModifiedModel(models.Model):
    modified = models.DateTimeField()

    class Meta(object):
        abstract = True

bruth

// Example directory structure
// js/
//    package.js
//    package/
//        mod1.js
//        mod2.js
//        mod3.js
require(['package'], function(pack) {
    var obj1 = new pack.Mod1Class(),
        obj2 = new pack.Mod2Class();

bruth

Client-side Environment Boilerplate

Sets up the environment for a client-side application.

• Remove jQuery as a global
• Change Underscore template parsers to not use ERB-style tags
• Setting a reasonable timeout for AJAX requests
• Define a AJAX queue manager for Backbone, inspired by @maccman's Spine implementation (Backbone as of 87c9b17a required)
  • GET requests are executed outside of the queue
• onbeforeunload handler defined for prevent navigation when there are pending requests

bruth

sortedGroupBy

jsFiddle Example

Convenience function for performing a groupBy on a list then a sortBy on the resulting groups using Underscore methods.

sortedGroupBy(list, groupByIterator, sortByIterator)

bruth

groupBy => HTML

jsFiddle Example

Takes an object with the format key => list and a list of keys to exclude from the table. Returns an array of groups. The keys should be the ones used as the iterator or by the iterator when performing the group by to prevent redundancy of data in the output table.

Since JavaScript object keys can only be numbers or strings, if the data was grouped by multiple keys, the group key must be a string delimited by some value. By default, the separator is a comma ,.

groupByHTML(groups, keys[, sep])

bruth

require(['jquery'], function($) {
    var data,
        form = $('#queue-download-form'),
        url = queueDownloadForm.attr('action');

    form.on('submit', function(event) {
        event.preventDefault();

        // for JSON
        data = JSON.stringify(form.serializeArray());

bruth

# Reference Backbone ajax function
_ajax = Backbone.ajax

requestQueue = []
requestPending = false

sendRequest = (options, promise, trigger=true) ->
    options = _.clone options
    if trigger
        requestPending = true    

bruth

define ['jquery', 'underscore'], ($, _) ->

    Deferrable =
        deferred: {}

        initialize: ->
            @pending()
            # Takes an object of method names and flags for implicitly
            # wrapping class methods in a deferred execution
            for method, once of @deferred