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trait DiscoveryTrait in Drupal 9

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php \Drupal\Component\Plugin\Discovery\DiscoveryTrait

Hierarchy

See also

Drupal\Component\Plugin\Discovery\DiscoveryInterface

10 files declare their use of DiscoveryTrait
AnnotatedClassDiscovery.php in core/lib/Drupal/Component/Annotation/Plugin/Discovery/AnnotatedClassDiscovery.php
AnnotationBridgeDecorator.php in core/lib/Drupal/Component/Annotation/Plugin/Discovery/AnnotationBridgeDecorator.php
ConfigSchemaDiscovery.php in core/lib/Drupal/Core/Config/Schema/ConfigSchemaDiscovery.php
HelpTopicDiscovery.php in core/modules/help_topics/src/HelpTopicDiscovery.php
HookDiscovery.php in core/lib/Drupal/Core/Plugin/Discovery/HookDiscovery.php

... See full list

File

core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php, line 10

Namespace

Drupal\Component\Plugin\Discovery
View source
trait DiscoveryTrait {

  /**
   * {@inheritdoc}
   */
  public abstract function getDefinitions();

  /**
   * {@inheritdoc}
   */
  public function getDefinition($plugin_id, $exception_on_invalid = TRUE) {
    $definitions = $this
      ->getDefinitions();
    return $this
      ->doGetDefinition($definitions, $plugin_id, $exception_on_invalid);
  }

  /**
   * Gets a specific plugin definition.
   *
   * @param array $definitions
   *   An array of the available plugin definitions.
   * @param string $plugin_id
   *   A plugin id.
   * @param bool $exception_on_invalid
   *   If TRUE, an invalid plugin ID will cause an exception to be thrown; if
   *   FALSE, NULL will be returned.
   *
   * @return array|null
   *   A plugin definition, or NULL if the plugin ID is invalid and
   *   $exception_on_invalid is TRUE.
   *
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   *   Thrown if $plugin_id is invalid and $exception_on_invalid is TRUE.
   */
  protected function doGetDefinition(array $definitions, $plugin_id, $exception_on_invalid) {

    // Avoid using a ternary that would create a copy of the array.
    if (isset($definitions[$plugin_id])) {
      return $definitions[$plugin_id];
    }
    elseif (!$exception_on_invalid) {
      return NULL;
    }
    $valid_ids = implode(', ', array_keys($definitions));
    throw new PluginNotFoundException($plugin_id, sprintf('The "%s" plugin does not exist. Valid plugin IDs for %s are: %s', $plugin_id, static::class, $valid_ids));
  }

  /**
   * {@inheritdoc}
   */
  public function hasDefinition($plugin_id) {
    return (bool) $this
      ->getDefinition($plugin_id, FALSE);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DiscoveryTrait::doGetDefinition protected function Gets a specific plugin definition.
DiscoveryTrait::getDefinition public function 3
DiscoveryTrait::getDefinitions abstract public function 13
DiscoveryTrait::hasDefinition public function