ShowSession::getVersion

public function getVersion()
{
	if(!$this->versionId)
	{
		return null;
	}

	if(isset($this->version) && $this->versionId == $this->version->getId())
	{
		return $this->version;
	}
	$this->version = Version::loadById($this->versionId);

	return $this->version;
}