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The Love-Hate Relationship Between Composer and WordPress (WordCamp Netherlands 2015)

Coen Jacobs
September 26, 2015

The Love-Hate Relationship Between Composer and WordPress (WordCamp Netherlands 2015)

Coen Jacobs

September 26, 2015
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  1. Hello My name is Coen Jacobs Developer at Radish Concepts

    Jumped out of the bubble Still do WordPress projects
  2. Composer “Composer is a tool for dependency management in PHP.

    It allows you to declare the libraries your project depends on and it will manage (install/ update) them for you.”
  3. What does Composer do? » Load your dependencies » Loads

    dependencies of your dependencies » And so on... » Offers a powerful autoloader » Inspired by npm and bundler » Made by Jordi Boggiano
  4. Manual loading... require_once 'classes/class-core.php'; require_once 'includes/wpseo-local-functions.php'; require_once 'includes/ajax-functions.php'; require_once 'classes/class-core.php';

    require_once 'classes/class-admin.php'; require_once 'classes/class-admin-wrappers.php'; require_once 'classes/class-metaboxes.php'; require_once 'classes/class-frontend.php'; require_once 'classes/class-storelocator.php'; require_once 'classes/class-taxonomy.php';
  5. Classmap: "autoload": { "classmap": [ "includes" ] } PSR-4: "autoload":

    { "psr-4": {"Never5\\ WPNotificationCenter\\": "src/"} }
  6. Plugin A: "require": { "wpupdatephp/wp-update-php": "~1.0" } Plugin B: "require":

    { "wpupdatephp/wp-update-php": "~1.0" } Solution: Install WPupdatePHP version 1.0.0, right?
  7. In the example, 1.0.0 was loaded the plugin bundling 1.1.0,

    assumes that version is there Fatal error: Call to undefined method
  8. What if you can't? Want to bundle something with your

    plugin What if you can't add your site to Composer?
  9. Creates a master composer.json » loop through wp-content/plugins/ » check

    for composer.json file » run wikimedia/composer-merge-plugin » composer install » installed in wp-content/vendor/ At least in theory, this works
  10. Thank you! @CoenJacobs coenjacobs.me Want to work with me? We're

    looking for both frontend & backend developers! Contact me or @radishconcepts
  11. Image credit » Slide 1: https://www.flickr.com/photos/ lizadaly/4373330774/ » Slide 7:

    https://www.flickr.com/photos/ diaper/7328032558/ » Slide 13: https://www.flickr.com/ photos/93277085@N08/12715023064/ » Slide 15: https://www.flickr.com/ photos/dandeluca/2720139047/ » Slide 22: https://www.flickr.com/ photos/usnavy/7879793204/
  12. Image credit » Slide 27: https://www.flickr.com/ photos/mdpettitt/4954174041/ » Slide 30:

    https://www.flickr.com/ photos/orphanjones/1769903155/ » Slide 36: https://www.flickr.com/ photos/twitteroffice/4524716820/ » Slide 43: https://www.flickr.com/ photos/doug88888/4537134655/