private function validateTargeting(UnmanagedFacebookBlob $facebookBlob) { $validationResult = true; $validationMessage = ""; $geographicTargeting = $facebookBlob->getGeographicTargeting(); // instantiated by default if (!empty($geographicTargeting) && !$geographicTargeting->isEmpty() && !$geographicTargeting->isValid()) { $validationMessage .= "Geographic targeting is invalid. "; $validationResult = false; } $demographicTargeting = $facebookBlob->getDemographicTargeting(); if (!empty($demographicTargeting) && !$demographicTargeting->isValid()) { $validationMessage .= "Demographic targeting is invalid. "; $validationResult = false; } $audienceTargeting = $facebookBlob->getAudienceTargeting(); // instantiated by default if (!empty($audienceTargeting) && !$audienceTargeting->isEmpty() && !$audienceTargeting->isValid()) { $validationMessage .= "Audience targeting is invalid. "; $validationResult = false; } return new ValidationResult($validationResult, $validationMessage); }