drupal 8 config factory service
This method employs less "magic naming"; instead, it says what it does and how the system should go about loading and running everything.No matter how difficult the problem, FFW's global team of digital experts is here to help you make the most of your digital presence.Drupal 8 Services, Dependency Injection, and Decoupling Your CodeDrupal 8 Services, Dependency Injection, and Decoupling Your Code
The ConfigFactory service is a class that can load Config information out of your Drupal site (Config has replaced variable_get() and variable_set() in Drupal 8). You can set the default values for your NetTV module like so:The code in the getBasicInformation() method will load the values from Config and use them to print out the message with the configurable variables you define. You'll sometimes see a Service Container referred to as a Dependency Injection Container.Finally, look at the next method on the WatchCartoons class:[gist:eb7774bf8c12b51c5186:config_factory_service.php]The config itself is loaded from a YAML file inside your project config/install/nettv.basic_information.yml - until Drupal saves it. The @ symbol in this case tells Drupal's Service Container to find the ConfigFactory class and how it should be instantiated with the arguments line.
In several cases, dependencies are passed explicitly in class constructors. Many of the core systems are implemented as services, and many familiar core functions are now procedural wrappers for services.For example, the l() function is now a wrapper for the This says to get the service called link_generator and call its generate() method. One example we might use in our set-top-box example is the Config service or The ConfigFactory service is a class that can load Config information out of your Drupal site (Config has replaced variable_get() and variable_set() in Drupal 8). I don't think so, but I will restore a backup and check. The object could be not auto-registered because it is from a different root namespace and not defined as a service.Let's take a look at the code required to invoke a module's hook as an example of the differences between Drupal 7 and 8. Your mileage will vary.The new concept of using a Service Container to instantiate objects should be a bit clearer to you now. That's another tutorial.Bonus: there is also an instance of \Drupal::l() from before, just so you can see it in practice.This wouldn't be a complete tutorial unless you could view the information about your NetTV service somewhere on your Drupal site, so we'll make a block.
Configuration Management is a game changer for Drupal development. Drupal 8's configuration system handles configuration in a unified manner. If your module is making a data model change related to configuration, then you need to properly update your data model.The four steps are: Update your configuration schema YML file so that it reflects your new data model. Drupal 8 has been released on November 19, 2015 with huge improvements.
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