The Symfony service container that Drupal 8 ships with allows us to define a large number of services (dependency objects) that we can inject in our controllers, forms, plugins, other services, etc.
Dates have always been a tricky thing to manage in Drupal. Even in PHP. PHP 5.2 introduced the DateTimeInterface which makes handling dates, date ranges, intervals, comparisons etc much easier.
Drupal 8 is very flexible when it comes to controlling access to your routes. It inherits quite a bit from the Symfony routing system, but adds its own flavour on top of that.
The Drupal node access grants system has always been a powerful and flexible way to control access to your nodes. It's been there from Drupal 5 (if not earlier) and it continues to exist in Drupal 8 as we move forward.
Have you ever needed to render certain pages (or groups of pages) with a different theme than the default one configured for the site? I did. And in this article I'm going to show you how it's done in Drupal 8.
The content_type ctools plugin is the most used type of ctools plugin in Drupal 7. It allows us to quickly build complex (and configurable) components that can be used in the Panels interface.