Matt Parker mattparker

## CustomerSpecificationSet.php
<?php
// This relates to Matthias Verraes talk on unbreakable domain models
// (which is very good).  Slides are http://verraes.net/2013/06/unbreakable-domain-models/
// and this is about the end of the talk (about three-quarters through the slide deck).
//
// I like the whole specification thing, but want to be able to combine them
// dynamically (in the language of the talk, the tenant can create their own
// specification of what a premium custom is), using building blocks we provide.

class CustomerSpecificationSet

## SqlSpecification.php
<?php
// This is another response to Mattias Verraes talk on unbreakable domain
// models (slides at http://verraes.net/2013/06/unbreakable-domain-models/)
// Near the end there's a bit where he suggests you implement business logic
// rules initially as code (i.e. an array filter) and secondly as sql.
// You can then test that these are consistent (though the tests in the talk
// don't show correctness, there needs to be a test against a known good result
// too).  But with that, it seems like a nice way to have testable SQL.

// A problem for me with the example (which is obviously shortened for the slide example)

## more on specification asSql.php
<?php
// Domain expert says:
// Tenant can construct their own 'premium customer specification' from a list of ingredients

// Tenant chooses 3 orders, one in the last month:
$spec1 = new CustomerWith3OrdersIsPremium();
$spec2 = new CustomerWithRecentOrderIsPremium();
$allSpecs = new CompositeCustomerSpecification();
$allSpecs->add($spec1)->add($spec2);

## pre-post-conditions.js
// this: https://twitter.com/raganwald/status/445938910808391680


// Wrap a function f (which accepts two arguments, and b) to enforce
// preconditions (if I understand them correctly) are guards on
// parameter values

// You can also optionally add a postcondition afterwards
// though it'd be nicer to add this in the main preCondition function really

## super.php
<?php
class Marvellous implements Community {
    public function smart () {
        return true;
    }
    public function helpful () {
        return true;
    }
    public function join (Anyone $person) {
        return true;

## mongo-test.php
<?php
error_reporting(E_ALL);


$host = 'mongodb://127.0.0.1/test';

echo "\n Testing deprecated MongoClient::connected property \n";
$client1 = new \MongoClient($host);
echo "done"; // breakpoint on this line triggers deprecation notice

## pic-of-a-page
javascript:(function () {
    var d = document.createElement('canvas'),
        ctx = d.getContext('2d'),
        w = window.innerWidth,
        h = window.innerHeight,
        x = 0,
        code_to_0256 = function (code) {

           if (code < 32 || code > 127) {
               code = 90;

## tweettopic
javascript:(function () {
    var d = document.createElement('canvas'),
        ctx = d.getContext('2d'),
        tweet = document.querySelector('.expanded-conversation .tweet .tweet-text'),
        box,
        w,
        h = 80,
        x = 0,
        code_to_0256 = function (code) {

## forum-4367.htm
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
    <title>Example</title>
    <link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/combo?2.8.0r4/build/reset-fonts-grids/reset-fonts-grids.css&2.8.0r4/build/assets/skins/sam/skin.css">
    <style>
        .yui-skin-sam .yui-toolbar-container .yui-toolbar-personal {
            width: 120px;
        }
    </style>

## YUI Editor full background extension.js
(function() {
var Dom = YAHOO.util.Dom,
    Event = YAHOO.util.Event,
    Lang = YAHOO.lang,
    Toolbar = YAHOO.widget.Toolbar;

    /**
     * The Rich Text Editor is a UI control that replaces a standard HTML textarea; it allows for the rich formatting of text content, including common structural treatments like lists, formatting treatments like bold and italic text, and drag-and-drop inclusion and sizing of images. The Rich Text Editor's toolbar is extensible via a plugin architecture so that advanced implementations can achieve a high degree of customization.
     * @constructor
     * @class SimpleEditor
	<?php
	// This relates to Matthias Verraes talk on unbreakable domain models
	// (which is very good). Slides are http://verraes.net/2013/06/unbreakable-domain-models/
	// and this is about the end of the talk (about three-quarters through the slide deck).
	//
	// I like the whole specification thing, but want to be able to combine them
	// dynamically (in the language of the talk, the tenant can create their own
	// specification of what a premium custom is), using building blocks we provide.

	class CustomerSpecificationSet
	<?php
	// This is another response to Mattias Verraes talk on unbreakable domain
	// models (slides at http://verraes.net/2013/06/unbreakable-domain-models/)
	// Near the end there's a bit where he suggests you implement business logic
	// rules initially as code (i.e. an array filter) and secondly as sql.
	// You can then test that these are consistent (though the tests in the talk
	// don't show correctness, there needs to be a test against a known good result
	// too). But with that, it seems like a nice way to have testable SQL.

	// A problem for me with the example (which is obviously shortened for the slide example)
	<?php
	// Domain expert says:
	// Tenant can construct their own 'premium customer specification' from a list of ingredients

	// Tenant chooses 3 orders, one in the last month:
	$spec1 = new CustomerWith3OrdersIsPremium();
	$spec2 = new CustomerWithRecentOrderIsPremium();
	$allSpecs = new CompositeCustomerSpecification();
	$allSpecs->add($spec1)->add($spec2);
	// this: https://twitter.com/raganwald/status/445938910808391680


	// Wrap a function f (which accepts two arguments, and b) to enforce
	// preconditions (if I understand them correctly) are guards on
	// parameter values

	// You can also optionally add a postcondition afterwards
	// though it'd be nicer to add this in the main preCondition function really
	<?php
	class Marvellous implements Community {
	public function smart () {
	return true;
	}
	public function helpful () {
	return true;
	}
	public function join (Anyone $person) {
	return true;
	<?php
	error_reporting(E_ALL);


	$host = 'mongodb://127.0.0.1/test';

	echo "\n Testing deprecated MongoClient::connected property \n";
	$client1 = new \MongoClient($host);
	echo "done"; // breakpoint on this line triggers deprecation notice
	javascript:(function () {
	var d = document.createElement('canvas'),
	ctx = d.getContext('2d'),
	w = window.innerWidth,
	h = window.innerHeight,
	x = 0,
	code_to_0256 = function (code) {

	if (code < 32 \|\| code > 127) {
	code = 90;
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
	<html>
	<head>
	<title>Example</title>
	<link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/combo?2.8.0r4/build/reset-fonts-grids/reset-fonts-grids.css&2.8.0r4/build/assets/skins/sam/skin.css">
	<style>
	.yui-skin-sam .yui-toolbar-container .yui-toolbar-personal {
	width: 120px;
	}
	</style>
	(function() {
	var Dom = YAHOO.util.Dom,
	Event = YAHOO.util.Event,
	Lang = YAHOO.lang,
	Toolbar = YAHOO.widget.Toolbar;

	/**
	* The Rich Text Editor is a UI control that replaces a standard HTML textarea; it allows for the rich formatting of text content, including common structural treatments like lists, formatting treatments like bold and italic text, and drag-and-drop inclusion and sizing of images. The Rich Text Editor's toolbar is extensible via a plugin architecture so that advanced implementations can achieve a high degree of customization.
	* @constructor
	* @class SimpleEditor