public AjaxResponse::addCommand(CommandInterface $command, $prepend = FALSE)
Add an AJAX command to the response.
Parameters
\Drupal\Core\Ajax\CommandInterface $command: An AJAX command object implementing CommandInterface.
bool $prepend: A boolean which determines whether the new command should be executed before previously added commands. Defaults to FALSE.
Return value
AjaxResponse The current AjaxResponse.
File
- core/lib/Drupal/Core/Ajax/AjaxResponse.php, line 38
Class
- AjaxResponse
- JSON response object for AJAX requests.
Namespace
Drupal\Core\Ajax
Code
public function addCommand(CommandInterface $command, $prepend = FALSE) {
if ($prepend) {
array_unshift($this->commands, $command->render());
}
else {
$this->commands[] = $command->render();
}
if ($command instanceof CommandWithAttachedAssetsInterface) {
$assets = $command->getAttachedAssets();
$attachments = [
'library' => $assets->getLibraries(),
'drupalSettings' => $assets->getSettings(),
];
$attachments = BubbleableMetadata::mergeAttachments($this->getAttachments(), $attachments);
$this->setAttachments($attachments);
}
return $this;
}
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