public static function getIndexFieldsMap() { if (!self::$fieldsMap) { self::$fieldsMap = array('created_at' => 'createdAt', 'updated_at' => 'updatedAt', 'version' => 'version', 'metadata_profile_id' => 'metadataProfileId', 'metadata_profile_version' => 'metadataProfileVersion', 'partner_id' => 'partnerId', 'object_id' => 'objectId', 'object_type' => 'objectType', 'metadata_status' => 'status', 'sphinx_match_optimizations' => 'sphinxMatchOptimizations'); } return self::$fieldsMap; }