public EntityAutocompleteController::handleAutocomplete(Request $request, $target_type, $selection_handler, $selection_settings_key)
Autocomplete the label of an entity.
Parameters
\Symfony\Component\HttpFoundation\Request $request: The request object that contains the typed tags.
string $target_type: The ID of the target entity type.
string $selection_handler: The plugin ID of the entity reference selection handler.
string $selection_settings_key: The hashed key of the key/value entry that holds the selection handler settings.
Return value
\Symfony\Component\HttpFoundation\JsonResponse The matched entity labels as a JSON response.
Throws
\Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException Thrown if the selection settings key is not found in the key/value store or if it does not match the stored data.
File
- core/modules/system/src/Controller/EntityAutocompleteController.php, line 79
Class
- EntityAutocompleteController
- Defines a route controller for entity autocomplete form elements.
Namespace
Drupal\system\Controller
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | public function handleAutocomplete(Request $request, $target_type, $selection_handler, $selection_settings_key) { $matches = array(); // Get the typed string from the URL, if it exists. if ($input = $request->query->get('q')) { $typed_string = Tags::explode($input); $typed_string = Unicode::strtolower(array_pop($typed_string)); // Selection settings are passed in as a hashed key of a serialized array // stored in the key/value store. $selection_settings = $this->keyValue->get($selection_settings_key, FALSE); if ($selection_settings !== FALSE) { $selection_settings_hash = Crypt::hmacBase64(serialize($selection_settings) . $target_type . $selection_handler, Settings::getHashSalt()); if ($selection_settings_hash !== $selection_settings_key) { // Disallow access when the selection settings hash does not match the // passed-in key. throw new AccessDeniedHttpException('Invalid selection settings key.'); } } else { // Disallow access when the selection settings key is not found in the // key/value store. throw new AccessDeniedHttpException(); } $matches = $this->matcher->getMatches($target_type, $selection_handler, $selection_settings, $typed_string); } return new JsonResponse($matches);} |
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