/**
* Check if module is already purchased
*
* @return boolean
*/
public function isPurchased()
{
$xcnModulePlan = $this->getXcnPlan();
return (bool) (static::NOT_XCN_MODULE == $xcnModulePlan ? $this->getLicenseKey() : $this->isAvailable() && $xcnModulePlan == \XLite::getXCNLicenseType());
}
