public function ContextPluginManager::__construct in Fasttoggle 8.2

Creates the discovery object.

Parameters

\Traversable $namespaces: An object that implements \Traversable which contains the root paths keyed by the corresponding namespace to look for plugin implementations.

\Drupal\Core\Cache\CacheBackendInterface $cache_backend: Cache backend instance to use.

\Drupal\Core\Extension\ModuleHandlerInterface $module_handler: The module handler to invoke the alter hook with.

Overrides DefaultPluginManager::__construct

File

src/ContextPluginManager.php, line 36

Contains \Drupal\fasttoggle\ContextPluginManager.

Class

ContextPluginManager

Manages Fasttoggle Context plugins.

Namespace

Drupal\fasttoggle

Code

public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {

  // We replace the $subdir parameter with our own value.
  // This tells the plugin system to look for plugins in the 'Plugin/Sandwich'
  // subfolder inside modules' 'src' folder.
  $subdir = 'Plugin/Context';

  // The name of the interface that plugins should adhere to.  Drupal will
  // enforce this as a requirement.  If a plugin does not implement this
  // interface, than Drupal will throw an error.
  $plugin_interface = 'Drupal\\fasttoggle\\ContextInterface';

  // The name of the annotation class that contains the plugin definition.
  $plugin_definition_annotation_name = 'Drupal\\Component\\Annotation\\Plugin';
  parent::__construct($subdir, $namespaces, $module_handler, $plugin_interface, $plugin_definition_annotation_name);

  // This allows the plugin definitions to be altered by an alter hook. The
  // parameter defines the name of the hook, thus: hook_sandwich_info_alter().
  // In this example, we implement this hook to change the plugin definitions:
  // see plugin_type_example_sandwich_info_alter().
  $this
    ->alterInfo('fasttoggle_context_info');

  // This sets the caching method for our plugin definitions.  Plugin
  // definitions are cached using the provided cache backend.  For our
  // Sandwich plugin type, we've specified the @cache.default service be used
  // in the plugin_type_example.services.yml file.  The second argument is a
  // cache key prefix.  Out of the box Drupal with the default cache backend
  // setup will store our plugin definition in the cache_default table using
  // the sandwich_info key.  All that is implementation details however,
  // all we care about it that caching for our plugin definition is taken
  // care of by this call.
  $this
    ->setCacheBackend($cache_backend, 'fasttoggle_context_info');
}