May 30, 2015 — Nous commencerons par un survol des requêtes que WordPress fait lors de la préparation du contenu d’une page ainsi que de la boucle qu’il traverse pour préparer le HTML puis nous finirons avec une boucle d’affichage d’un objet très spécifique. Nous verrons aussi comment « expliquer » à un engin de recherche comme Google ce que nous lui présentons avec des attributs qu’il saura comprendre. Cette présentation ne s’adresse pas seulement à des développeurs de thèmes. Si vous êtes un utilisateur qui se concentre uniquement sur le contenu du site, je vais vous armer de concepts et d’outils permettant une meilleure communication avec vos développeurs.

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May 30, 2015 — You’ve been meaning to start using Sass in your projects, right? But it looks hard…is it really worth figuring out? Yes, yes it is! In this talk, we will cover Sass basics like structuring projects, mixins and variables, and using extensions. We will then go over how to start using Sass in your own themes as well as touch on a few Sass-ready starter themes. Afterwards, Lara will be available at the Happiness Bar for demos and to help you get set up!

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May 30, 2015 — One of the recent WordPress accessibility initiatives has been the introduction of the ‘accessibility-ready’ tag for theme authors who wish to submit themes to the WordPress repository. The tag is used to indicate that a theme contains the best practices in web accessibility, and can form the basis of an accessible WordPress website. But uptake has been slow. This presentation looks at what you need to do to get your themes up to the ‘accessibility-ready’ standard – whether or not you intend to submit them to the repository. It’s not hard to do, and the benefits can be enormous for many, many people.
I will also be looking at whether it’s worth following the ‘accessibility-ready’ steps for plugins too.

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May 30, 2015 — Je parle bien sûr des transients, cette fameuse API qui ne vous veut que du bien. Voyons des cas concrets d’utilisation pour réduire les requêtes distances et ainsi gagner en performances de temps de chargement. L’auditoire apprendra à utiliser l’API “transient” de WordPress dans le but dé gagner en performances.

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May 30, 2015 — Questions for WordPress’ core developers, what it’s like to develop WordPress, what’s happening in WordPress’ future, and how you can help out. The panel will consist of:
Helen Hou-Sandi (WordPress Lead Developer)
Mark Jaquith (WordPress Lead Developer)
John Blackbourn (4.1 Release Lead)

May 30, 2015 — Amaze your friends, confound your enemies! Oh, and save bandwidth and speed up your site by sending the correctly-sized images for the device with HTML’s new responsive images capabilities.

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May 30, 2015 — WP-CLI
Tom Nowell
Tom explains what WP CLI is, introduces three useful commands you can use, and explains how to find out more.

Catering for WordPress
Kirsty Burgoine
This talk is a whistle stop tour of how WordPress was used to create an intranet for businesses in the restaurant / catering industry. Some of the features include help plan and budget dishes and menus, work out costings for bulk recipes down to individual portions and include other factors such as VAT and a variable gross profit.

Custom Post Type Meta
Mark Wilkinson
Slides:http://markwilkinson.me/2015/03/wordcamp-london-2015-lightning-talk
Over the course of many WordPress site builds, Mark found a constant problem when dealing with custom post types: he wanted to add meta data to a post type like you do a post. In this talk Mark gives a brief overview of why he needed to be able to do this and how he went about it, building a plugin to provide this functionality.

Cleaner Themes and Plugins
Miles Stewart
Miles talks about creating cleaner themes and plugins, moving towards using mvc in plugin and theme creation.

Debugging
John Blackbourn
John talks about why you should treat debugging as a key skill that you should practice and become proficient at. He’ll show you a few tools and processes for modern and efficient debugging of the front end and the back end.

May 30, 2015 — A common refrain when building software is “think of the user first!” Let’s take a look at how we define our users, how that shapes what we build for them, and what that might mean for the holy grail of a core API.

May 29, 2015 — This talk introduces the concept of behaviour driven tests, rather then looking at the codes logic these tests looks at the larger application and checks it does what we and our boss expects. It focuses around the using Codeception a PHP based testing suite with WordPress to provide acceptance, visual regression and API test coverage for plugin, themes and sites. The talk is suitable for any developer, who is interesting in improving testing within their applications, especially those who may have been in the past put off by unit testing. The goal to speed up peoples development by automating testing they already do and improve coverage of tests, as well as looking at interesting “other uses” for acceptance testing.

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May 29, 2015 — WordPress can generate all sorts of interesting content dynamically, but if you want speed and scalability, you should be smart about caching. Don’t make WordPress do work twice when it can do it once. In this focused talk, Mark Jaquith talks about caching strategies from basic to advanced.

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