![]() Whether it's made by Apple, Amazon, Google or Roku, these set-top boxes all have Services in common. One way of thinking about Services, if this is a new concept for you, is the set-top-box on your TV. This way, you don't have to know where the link_generator class is defined, or even what class name it uses, but you can always find it if you need to. This says to get the service called link_generator and call its generate() method. You call the function as such \Drupal::l(), because everything is namespaced now, but that's another blog post. Many of the core systems are implemented as services, and many familiar core functions are now procedural wrappers for services.įor example, the l() function is now a wrapper for the LinkGenerator::generate() function. ![]() Services are used in a number of ways in Drupal. First, I'll show you how a common function, making links, uses services. The new Configuration Management systems in Drupal 8 use services extensively, and you will learn a bit about Config in this blog post. There is, however, a token service, which is a great example, since you only really need one token service for your entire site. For example, a node is not a service it is content. A View is also not a service. While Services are objects, not all objects are suitable services. For example, Drupal 8 sites have a service for sending email, for logging errors, for making HTTP requests, and dozens of other common tasks. Chief among them was the concept in Symfony and Drupal 8 called Services, which help keep your code decoupled and, in my opinion, easier to read.Ī Service is simply an object, usually with one instance of each service's class for each service on a site. IntroĪs a dyed-in-the-wool Drupal programmer looking to get into coding Drupal 8, there were a few modern subjects I had to familiarize myself with. If there is no dedicated method for the service you want to use, you can use the Drupal::service() method to retrieve any defined service.Disclaimer: This is not a tutorial about the services module, but rather the object-oriented PHP concept of Services, the Service Container and Dependency Injection. As an example, Drupal::cache() returns the cache handler service or in another example Drupal::urlGenerator()returns the URL Generator service. The global Drupal class provides static methods to access several of the most common services. How to access services in global functions I'll talk about how to create custom service later, here I just want to tell you Drupal 8's core provides several global services which you can easily access them. ![]() Hook architecture was good but in large projects with a lot of hook and modules put the developer in the hard situation, memory exhausting and performance issues were very common in large-scale Drupal 7 website. by using well-disposed structure developers get ride of ravioli coding. ![]() ![]() it's fantastic because it grants developers a level of flexibility in extending Drupal that is far greater than what Drupal 7 was able to. From aspects like routing, templating, managing configuration, querying and persisting data, you name it everything is done with services. One of the significant improvements of Drupal 8 that got me excited was the services
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