This tutorial takes a look at applying a patch from Drupal.org to your local copy of a module or Drupal core using Git. Afterwards we'll look at how you can create your own patches, using git diff
and git format-patch
, in order to contribute code back to Drupal or any of the module's on Drupal.org. You can see a full Git workflow using GitHub in the lesson Git Workflow: Putting It All Together.
Additional resources
Git Best Practices: Upgrading the Patch Process article
Applying a patch in a feature branch
In this tutorial, Joe walks you through a typical Git workflow. We start with cloning a repository, creating a branch, and getting some work done. Then we go ahead and commit our work, merge it into the master branch, and push our changes back up to the remote repository.
We've now learned about all sorts of commands in git and the flags that accompany those commands. We've also seen that some of those commands can get to be a bit long and are used quite often. In this lesson we're going to take a look at how to create command aliases in our .gitconfig file so that we can have a shorthand for accessing some of these more esoteric commands. We'll also take a quick tour of Joe's personal .gitconfig file that he uses in his day-to-day work.
What is version control? Why should we be using it? Where do we even start? Managing your code is very important, both to make sure you don't accidentally lose a lot of work, but to also make it clear who is working on what and be able to track those changes over time. There is a big world of version control systems and this Do it with Drupal session with Blake Hall will explain the general concepts and best practices around using version control, as well as provide some demonstrations of one of the most popular ones being used today, Git.
Additional resources
Use the jQuery plugin system to extend the set of methods available in jQuery beyond those provided by the core jQuery library. See where to find jQuery plugins, and examine a number of the available plugins and when to use them and what to use them for. See how to make use of plugins in your custom jQuery code. Finally, learn how to write your own plugins to extend the basic jQuery functionality.
A brief summary of the material covered in the Introduction to jQuery video series
This video shows you how to create your own custom shortcuts for various commands. We'll look at some common aliases and see how to add them to our command line environment. This is super handy for commands that you type in all the time and don't want to go through the tedium of typing the whole thing out every time. For example, we show how to automatically go to a particular directory with just one word (e.g. type "clients" and go to the /Users/add1sun/lullabot/clients directory immediately).
Overview the Firebug extension for Firefox and how it can be used to aid in the development of Javascript. Real time development and debugging of Javascript.
Learn about using jQuery to apply animation and effects to DOM elements. Show and hide things on the page using the fade, slide, and hide/show methods. Chain multiple effects together to create animations. And use the jQuery .animate() function to preform more complex animations.
Learn how to respond to the actions that a user performs on a page using jQuery events. Attach event handlers to DOM elements and respond to mouse events like click and hover, and keyboard events such as someone pressing or releasing a key. Finally learn about responding to special events that only occur on form elements. This chapter gives a description of each of the available jQuery events and how or when they are triggered. Check out http://quirksmode.org/js/keys.html for more information on compatibility for assigning keyboard events across multiple browsers.
Add a jQuery Javascript file to Drupal following best practice methods for including javascript files on the page. Learn about how your custom jQuery scripts are loaded on to the page, and when they get executed. Introduces jQuery's no-conflict mode and provides some best practice examples for writing your own jQuery files within the context of Drupal as a whole.
Note: To avoid hiding all blocks on your page, target your blocks more specifically. For example, #sidebar .block .content
Also, inspect your markup for the existence of a class of title on the h3, which may or may not be applied in your theme. The new example below does not include the title class.
(function($){ $(document).ready(function(){ $('#sidebar .block .content').hide(); $('#sidebar .block h3').css('cursor', 'pointer').click(function(){ $(this).parent().children('.content').slideToggle(); }); }); })(jQuery);
Use jQuery to manipulate DOM elements including adding and removing classes to an HTML element, changing the content of an element, wrap a set of elements with a new element, adding new elements to the page using prepend and append methods and the related prependTo and appendTo methods. Use jQuery to manipulate properties height, width, and position of any DOM element. Finally learn how to use jQuery to completely remove selected DOM elements from the page.
Traverse the DOM tree using jQuery to find the children, parents, and other nearby elements of any selected element on the page. Learn how to select an element up the page and reliably locate it's siblings by traversing up the DOM to a parent element and then back down using find. Use additional jQuery methods to filter a list of DOM elements down using find to apply an additional selector to the list, not to filter out elements that do not match a set of criteria and more.
This video looks at the basics of working with MySQL from the command line. We get into the mysql environment and look at databases, tables and fields. We cover creating and deleting databases, creating a user, and querying within a particular database.
Note: In some places the command line prompt is cut-off. The YouTube version of this video doesn't have the cut-off problem. We are working on getting this fixed, but in the meantime, check out the YouTube version instead.
Command Line Basics 13: Using MySQL from Command Line (youtube.com)
This is an introduction to the Tail command, available on Unix/Linux systems. Tail has many applications, but this video concentrates on its basic usage and useful options, as they pertain to Drupal developers.
You'll learn how to take a quick peek at recent log messages from a single log file, how to do the same thing with multiple logs, as well as watching log files in real time! We'll finish up with a practical application, to see why this is useful.
Commands used in this video:
To view the documentation (or manual) for the tail command:
man tail
To show the last 20 lines of the webserver's access log file:
tail /var/log/apache2/access.log
To show the last 20 lines of the webserver's error log file:
tail /var/log/apache2/error.log
To show the last 20 lines of the webserver's error log file and continue to print new lines added to the file:
tail -f /var/log/apache2/access.log
PHP Service Classes
FreeIn this course, we're going to continue on from the Introduction to Object-Oriented PHP series. We're working on the same spaceship project: it has ships, you choose them, then they engage in epic battle!
In an editor, far far away, you'll see a simple application that runs this: index.php is the homepage and battle.php does the magic and shows the results. In the first course, we created a single class called Ship
, which describes all its properties—it's like a container for one ship's details. In this tutorial we're going to replace our flat functions and create a BattleManager
service class to provide the methods we'll need to do that.
This video was part of a series of presentations produced in anticipation of Drupal 8's official release. For information about theming based on official releases of Drupal 8, view tutorials in our Drupal 8 Theming Guide.
[# card #]
nid: 2512
title: D8 Theming series
[# endcard #]
This presentation outlines some of the major changes to the way that themes are built in Drupal 8 and is intended to help you generate a list of the things you're going to need to know in order to start making awesome Drupal 8 themes. A lot has changed, and there are a lot of new things to learn. However, one of the primary focuses has been on making the theme layer easier to understand, and easier to get started with.
Almost every aspect of the theming layer has been touched in one way or another during the Drupal 8 development cycle. We think some of the important ones to learn about are:
- How Drupal 8 makes the theme layer easier to understand
- Changes to help make Drupal responsive and mobile friendly
- The adoption of current best practices for HTML5, CSS, and JavaScript
- The addition of a new template engine based on Twig
After watching this presentation you should have a better understanding of the things you'll need to learn in order to create themes in Drupal 8 and where you might need to brush up.
Additional resources
- Drupal 8 Theming Guide (Drupalize.Me)
- Changes for themers
- Twig Theming video tutorial series
- Acquia's Ultimate Guide to Drupal 8: Episode 5 - Front-End Developer Improvements
- DrupalCorn Presentation by Marc Drummond: Building a Drupal 8 theme with new fangled awesomeness
- DrupalCon Sydney Presentation by Jen Lampton: Twig, and the New Theme Layer in Drupal 8
- DrupalCon Austin Presentation by Scott Reeves and Joël Pittet: Drupal 8 Theme System: hook_theme to Twig Template
This course introduces important concepts in object-oriented PHP. It is authored and produced by our partners at KnpUniversity (now SymfonyCasts). In this PHP course, you'll be building a PHP app using PHP and refactoring the code, step-by-step, using concepts in OO-PHP such as classes, methods, access control, type hinting, and constructors. You'll learn how to have one object interact with another and by the end of this project, your PHP app will be sporting some shiny new object-oriented PHP.
In this lesson, Leanna introduces you to the project and shows you how to get it up and running. So, look for the Course code download link below and we'll walk you through the process of getting the app up and running on your computer using the built-in PHP server. As long as you have PHP installed on your computer and a code or text editor, you should be able to complete the lessons in this series. (A full stack web server (i.e. Apache/MySQL/PHP) is not required, only PHP.) Follow along by running commands from the start
directory.
Additional resources
This PHP tutorial covers the basics of classes and objects. You'll learn how to set up a class and then what a class is and what objects are like. By the end of this tutorial you should be able to create a class, an object, create a property, and set the value of a property inside a class.
Additional resources
In this PHP tutorial, you'll learn about methods — functions that live inside objects. You'll also learn how to access properties inside methods using the $this
pseudo-variable.