TYPO3.Flow

When type hierarchies are used for modeling, it's necessary to map to a special subclass when creating new entities. This should be possible by a special (request) parameter in the source array of a type converter. For security reasons, this feature must be configured explicitly through a mapping configuration.

Example:

class MyProject\MySpecialUser extends MyProject\User

source = {
  __type: 'MyProject\MySpecialUser',
  name: 'Foo'
}

targetType = 'MyProject\User'

In this example, the created type should be an instance of MyProject\MySpecialUser.

The configuration could be given through a property mapping configuration like this:

class MyObjectController {

    /**
     * @return void
     */
    protected function initializeCreateAction() {
        $argument = $this->arguments->getArgument('newMyObject');
        $configuration = $argument->getPropertyMappingConfiguration();
        $configuration->allowOverrideTargetType();
    }

}

If the given type parameter is not an instance of the target type, an exception should be thrown.