Returns a JSON list of autocomplete suggestions for data selectors.

Parameters

\Drupal\rules\Ui\RulesUiHandlerInterface $rules_ui_handler: The UI handler.

\Symfony\Component\HttpFoundation\Request $request: The request object providing the autocomplete query parameter.

string $uuid: The UUID of the expression in which the autocomplete is triggered. If the UUID is not provided all available variables from the end of the expression will be shown.

Return value

\Symfony\Component\HttpFoundation\JsonResponse The JSON results.

File

src/Controller/AutocompleteController.php, line 29

Class

AutocompleteController

Handles autocompletion of data selectors.

Namespace

Drupal\rules\Controller

Code

public function autocomplete(RulesUiHandlerInterface $rules_ui_handler, Request $request, $uuid = NULL) {
    $component = $rules_ui_handler->getComponent();
    $nested_expression = $component->getExpression()
        ->getExpression($uuid);
    if ($nested_expression === FALSE) {
        // @todo We don't have a UUID when an expression is added. Just show all
        // variables available in that case. The correct solution would be to get
        // the form state of the expression form currently being added. That is
        // very complicated so we don't do it for now.
        $nested_expression = NULL;
    }
    $string = $request->query
        ->get('q');
    $results = $component->autocomplete($string, $nested_expression);
    return new JsonResponse($results);
}