/**
* Handle the command.
*
* @param GroupRepositoryInterface $groups
* @return GroupInterface|null
*/
public function handle(GroupRepositoryInterface $groups)
{
if (is_numeric($this->identifier)) {
return $groups->find($this->identifier);
}
if (is_string($this->identifier)) {
return $groups->findBySlug($this->identifier);
}
if ($this->identifier instanceof Presenter) {
return $this->identifier->getObject();
}
if (is_object($this->identifier)) {
return $this->identifier;
}
return null;
}
