FlexForm can be extended by a PHP function to handle additional tasks after a Form has been submitted.
Start a FlexForm and tell it to use your extension :
<_form action="addToWiki" extension="<name of your extension" >
Your flexform elements here
</_form>
Create a folder in FlexForm/src/Modules/Handlers with the name of your extension.
In this folder create a file called PostHandler.php with the following namespace :
namespace FlexForm\Modules\Handlers\< your extension name = same as folder name >;
Your extension will be base on the HandlerInterface interface and will only hold one method : execute
The array $flexFormFields will be available and hold all submitted Form elements as name->value.
If your extension produces an error, throw a FlexFormException and FlexForm will take care of the rest. Make sure to throw a message that with your extension name.
If your extension has successfully finished its tasks, tell the responsehandler it has been successfull and return the responseHandler :
$responseHandler->setReturnType( HandleResponse::TYPE_SUCCESS );
return $responseHandler;
If your extension has successfully finished its tasks and you want to pass additional information to the user :
$responseHandler->setReturnType( HandleResponse::TYPE_SUCCESS );
$responseHandler->setReturnData( string < your message > );
return $responseHandler;
