protected EntityResolverManager::getControllerClass(array $defaults)
Gets the controller class using route defaults.
By design we cannot support all possible routes, but just the ones which use the defaults provided by core, which are _controller and _form.
Rather than creating an instance of every controller determine the class and method that would be used. This is not possible for the service:method notation as the runtime container does not allow static introspection.
Parameters
array $defaults: The default values provided by the route.
Return value
string|null Returns the controller class, otherwise NULL.
See also
\Drupal\Core\Controller\ControllerResolver::getControllerFromDefinition()
\Drupal\Core\Controller\ClassResolver::getInstanceFromDefinition()
File
- core/lib/Drupal/Core/Entity/EntityResolverManager.php, line 62
Class
- EntityResolverManager
- Sets the entity route parameter converter options automatically.
Namespace
Drupal\Core\Entity
Code
protected function getControllerClass(array $defaults) {
$controller = NULL;
if (isset($defaults['_controller'])) {
$controller = $defaults['_controller'];
}
if (isset($defaults['_form'])) {
$controller = $defaults['_form'];
// Check if the class exists and if so use the buildForm() method from the
// interface.
if (class_exists($controller)) {
return array($controller, 'buildForm');
}
}
if (strpos($controller, ':') === FALSE) {
if (method_exists($controller, '__invoke')) {
return array($controller, '__invoke');
}
if (function_exists($controller)) {
return $controller;
}
return NULL;
}
$count = substr_count($controller, ':');
if ($count == 1) {
// Controller in the service:method notation. Get the information from the
// service. This is dangerous as the controller could depend on services
// that could not exist at this point. There is however no other way to
// do it, as the container does not allow static introspection.
list($class_or_service, $method) = explode(':', $controller, 2);
return array($this->classResolver->getInstanceFromDefinition($class_or_service), $method);
}
elseif (strpos($controller, '::') !== FALSE) {
// Controller in the class::method notation.
return explode('::', $controller, 2);
}
return NULL;
}
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