On October 18, 2014, I gave at talk at the Pacific Northwest Drupal Summit entitled "Services, Dependency Injection, and Containers, oh my!". Description:
Drupal 8 introduces the concepts of Services, Dependency Injection, and the Container to Drupal. They my seem a bit mysterious to programmers who are used to working with Drupal 7 or earlier versions. To help clear up the mysteries, this session will answer these questions:
- What is a service?
- What are those $container variables all over the code?
- What are dependencies, and what is injection?
- What's the easiest way to interact with services, and ... since you're about to tell me how wrong it is to do it that way, how should I really be doing it in my code?
- How can I override a service?
- Why is this all important (why did Drupal adopt this conceptual framework in the first place)?
Slides are attached below.
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