Developers

The following information is currently targeted to those site admins who have a site built on a custom theme implementation or have written custom modules for Drupal 9.

If you are using the standard Drupal 9 Drupal Express provided by Institute Communications, you should wait until they release a new version of the Georgia Tech theme package before trying to upgrade to Drupal 10.

A list of things to be watchful for when upgrading to Drupal 10 (to be expanded in the near future):

Here's a quick reference guide to working with the new configuration management system. You'll need this if you want to build a module that adds its own configuration to Drupal during its installation process:

Simple Configuration API | Drupal.org

Here's how to whitelist HTML tags in your module output that are normally stripped out by the XSS filter:

    $tagList = array('input');
  
    return array(
      '#markup' => $buffer,
      '#allowed_tags' => array_merge(\Drupal\Component\Utility\Xss::getAdminTagList(), $tagList),
    );

And here's how to allow data URLs in your module output for displaying images with data that you've already pulled in from a data source (code updated 2017-12-11 to a better format that avoids whitescreening in certain use cases):

Drupal 7 began forcing mySQL to act like a traditional SQL server so that all SQL code used in Drupal will be highly compatible with other database systems like PostgreSQL or SQLite. This means that mySQL statements that syntactically work in other contexts may produce errors under Drupal 7 or 9. Drupal 8+ adds the 'ONLY_FULL_GROUP_BY' restriction, which can potentially cause custom mySQL code that worked in Drupal 7 to fail with errors in Drupal 8+.

Here's the exact settings being used in Drupal 8:

The Alternate Method (PHP, IFRAMEs, JavaScript) (Drupal 7)

The following method is a little more round-about, but doesn't require as much coding knowledge as the previous method. The main downside is that it may be difficult for someone in the future to figure out where your custom PHP or embed code has been stored, since this is a non-standard and uncommon method.

Scott Jacobson, Desmond Gardfrey, and Eric Sembrat were able to get Georgia Tech's MediaSpace working as an oembed provider for Drupal media.  Below is the method they developed.

1. Add the OEmbed Providers module

This section houses guides, tips, and tricks for working with multimedia (video, audio, etc.) in Drupal, whether through the Drupal 8/9 Media library system, or through other means.

Eventually, the time comes to say goodbye to a Drupal site, but doing so is not always as easy as it may seem.  Below are tips and tricks for shutting down a site gracefully without losing your sanity along the way.

Here are some example .lando.yml files (and associated settings.php files for drupal) of commonly-used configurations.

1. First install WSL version 2.