drupal 9 custom blocks dependency injection
/**
* @file
* Contains \Drupal\mymod\Plugin\Block\MyModMyStoreProductsStatusBlock
*/
namespace Drupal\mymod\Plugin\Block;
use Drupal\Core\Block\BlockBase;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\mymod\StoreService;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Provides a product status block for the store portal.
*
* @Block(
* id = "mymod_my_store_products_status_block",
* admin_label = @Translation("My Store Products Status Block")
* )
*/
class MyModMyStoreProductsStatusBlock extends BlockBase implements ContainerFactoryPluginInterface {
// store service
protected $ss = NULL;
/*
* static create function provided by the ContainerFactoryPluginInterface.
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static(
$configuration,
$plugin_id,
$plugin_definition,
$container->get('mymod.store_mgr')
);
}
/*
* BlockBase plugin constructor that's expecting the StoreService object provided by create().
*/
public function __construct(array $configuration, $plugin_id, $plugin_definition, StoreService $ss) {
// instantiate the BlockBase parent first
parent::__construct($configuration, $plugin_id, $plugin_definition);
// then save the store service passed to this constructor via dependency injection
$this->ss = $ss;
}
/*
* return the render array with the vals provided by the injected store service.
*/
public function build() {
return [
'#theme' => 'mymod_mystore_products_status_block',
'#n_total' => $this->ss->getTotalCount(),
'#n_active' => $this->ss->getActiveCount(),
'#sales_mtd' => $this->ss->getSalesMTD(),
'#n_products_sold' => $this->ss->getTotalSoldCount()
];
}
}