function PluginBase::getDerivativeId

Gets the derivative_id of the plugin instance.

Return value

string|null The derivative_id of the plugin instance NULL otherwise.

Overrides DerivativeInspectionInterface::getDerivativeId

File

core/lib/Drupal/Component/Plugin/PluginBase.php, line 80

Class

PluginBase

Base class for plugins wishing to support metadata inspection.

Namespace

Code

public function getDerivativeId() {
    $plugin_id = $this->getPluginId();
    $derivative_id = NULL;
    if (strpos($plugin_id, static::DERIVATIVE_SEPARATOR)) {
        [
            ,
            $derivative_id,
        ] = explode(static::DERIVATIVE_SEPARATOR, $plugin_id, 2);
    }
    return $derivative_id;
}