Video Updates

Sorry about that, you will need to use the NPM package manager instead for this.

This video isn't cut properly, and should end at about 45 seconds. But it keeps going all the way through the 'How "media queries" work to pull in different CSS based on conditions in the browser' video. Sorry about that! Someday I will fix this but at the moment you can choose to watch all of videos as a unit or move on at about 45 seconds.

A viewer pointed out that the YAML structure in this video is actually using a "dictionary" (or "hash") instead of arrays. In PHP, both arrays and dictionaries are called arrays, which is where I got confused here. But, as mentioned on this docs page, elsewhere this structures is not called an array.

Some text editors may add an extra line to the end of the CSV file when saved. You can strip this back out again by wrapping the $data variable with trim(), so:

$data = trim($data);

In this video we dig into /sites/default/files/php/service_container/service_container_prod to see a list of registered services. In the latest versions of Drupal 8, this file no longer exists. You can still search the file base for services, but they are no longer gathered together in a single easy-to-search file. You'll instead find them in their respective $module.services.yml files.

According to a viewer, the issue with the heading tags not wrapping around each other has been fixed and a class (pane-title) is now used. Yea!

Many designers care about color and slight variations. In this video I assumed that the designer did not care so much, and realize in retrospect that the assumption may have been insulting.

Please note that I am dealing here with a design that I made, and so while I am speaking more broadly, I am really addressing my own flaws and the shortcuts I personally take when creating designs in Photoshop. I did not mean to imply that other designers are not more diligent and purposeful than I am when choosing colors, and should have chosen my wording more carefully. My goal with these videos is to help learners draw broad principles about the process of developing for the web, but sometimes I draw from too small a sample size and say the wrong thing.

So designers, please accept my apologies. I know now that many of you are choosing that slightly different grey on purpose. Three cheers for a subtle and pleasantly varied color palette!

In this video I mention that "div" is short for "divider," which is close but wrong. A viewer pointed out that it's actually "division." Thanks!

One viewer mentioned that they needed to add administrative permissions to a role in order to work with Page Manager.

One viewer was unable to get the .selectize-input:after selector to work for hiding the border, but found that .selectize-input:before did work.

This video is about exporting configuration, but at the very end of the video I accidentally say "do an export of your entire content" instead of "do an export of your entire configuration."

Adding a page via a module is something that's changed dramatically since this video was first made. We talk about many of these later on in the series, but to make it explicit here, among these changes are the following:

1. Drupal now uses PSR-4 instead of PSR-0, making for a simpler directory structure.
2. Modules now use the the src folder instead of the lib folder. So now the folder structure will be /src/Controller/mycontroller.php
3. The routing.yml file now uses the key _controller instead of _content.
4. The hook_menu() hook has been replaced by numerous parts. The most important omission here is the use of the links YAML files, like *.links.task.yml, as mentioned here. Details on converting an item in hook_menu() to the new routing.yml file and the various *.links.*.yml files can be found here.

While Classy and Stable are still Drupal core's base themes, they are no longer visible or selectable from the /admin/appearance page.

On line 52, there is the following line:

$event->setResponse(new RedirectResponse(url('<front>')); // This
is what we do in D8 instead of drupal_goto('');

Instead of using url(), you will now need to use different code, as indicated in this change record, for example:

\Drupal\Core\Url::fromUri('internal:/')->toString()