If you are trying to get to grips with Dependency Injection in Drupal 8 then here is a walk-through of how I applied it in one of my Drupal 8 test projects.
I have a project I have been using to investigate Drupal 8 since alpha10 which has been invaluable in my learning process. But as a result, some of my code is over 2 years old and written when I barely had a grasp of Drupal 8 concepts.
In the past week a very old @todo jumped out to me:
Welcome to part two of our miniseries on Drush commands! Do check out part one if you haven't already. There you'll see what we've been up to with our pretend module, my_awesome_module.
If you're writing a custom Drush command, it's pretty much guaranteed that you're needing to do something more complicated than write 'Hello World' to your database 5,000 times. Let's take a look at some Drush essentials.
Responsive design is now the norm when it comes to developing modern websites, and most of us will be all too familiar with how we use media queries to get our sites looking different on a whole range of different devices. When it comes to getting our images to resize depending on the viewport / device, we now have two options: we can again rely on media queries, or we can use the srcset and sizes attributes that were defined in the <picture> element specification.
Occasionally there's something you need to achieve, which would be really easy if only you could have it performed via Drush - some script that could be run on the server during an update or migration process, perhaps. But it all looks a bit too scary, right? "The task is tricky enough already, let's just do it some other way"?
Well, it's actually surprisingly easy to write your own Drush commands, and it's totally something worth learning. Let's take a look.