class ConstraintFactory

Same name and namespace in other branches
  1. 10 core/lib/Drupal/Core/Validation/ConstraintFactory.php \Drupal\Core\Validation\ConstraintFactory
  2. 11.x core/lib/Drupal/Core/Validation/ConstraintFactory.php \Drupal\Core\Validation\ConstraintFactory

Constraint plugin factory.

Symfony Constraint plugins are created as Drupal plugins, but the default plugin constructor is not compatible.

Hierarchy

Expanded class hierarchy of ConstraintFactory

File

core/lib/Drupal/Core/Validation/ConstraintFactory.php, line 15

Namespace

Drupal\Core\Validation
View source 
class ConstraintFactory extends ContainerFactory {
    
    /**
     * {@inheritdoc}
     */
    public function createInstance($plugin_id, array $configuration = []) {
        $plugin_definition = $this->discovery
            ->getDefinition($plugin_id);
        $plugin_class = static::getPluginClass($plugin_id, $plugin_definition, $this->interface);
        // If the plugin provides a factory method, pass the container to it.
        if (is_subclass_of($plugin_class, ContainerFactoryPluginInterface::class)) {
            return $plugin_class::create(\Drupal::getContainer(), $configuration, $plugin_id, $plugin_definition);
        }
        // If the plugin is a Symfony Constraint, use the correct constructor.
        if (is_subclass_of($plugin_class, Constraint::class)) {
            return new $plugin_class($configuration);
        }
        // Otherwise, create the plugin as normal.
        return new $plugin_class($configuration, $plugin_id, $plugin_definition);
    }

}

Members

Title Modifiers Object type Summary Overriden Title Overrides
ConstraintFactory::createInstance public function Creates a pre-configured instance of a plugin. Overrides ContainerFactory::createInstance
DefaultFactory::$discovery protected property The object that retrieves the definitions of the plugins that this factory instantiates.
DefaultFactory::$interface protected property Defines an interface each plugin should implement.
DefaultFactory::getPluginClass public static function Finds the class relevant for a given plugin. 1
DefaultFactory::__construct public function Constructs a Drupal\Component\Plugin\Factory\DefaultFactory object.

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