Skipping rows with certain empty column fields .csv upload in Creator

Hi,

I have a script that parses data from an .csv file upload and pushes the data into a Zoho Creator Form.

The script below is supposed to assign "0" value to the empty fields and delete them from the upload if they match the criteria. Unfortunately, this is not working.

I would rather skip the records where these 2 column fields are both empty on a row - Cruise_Sales_2023 and Cruise_Sales_2022.

Please advise.

fileContent = input.Cruise_Sales_Upload.content;
rowlis = fileContent.toList("\n");
i = 0;
for each rl in rowlis
{
if(i > 0 && i < rowlis.size() - 1)
{
lis = rl.toList();
ppstfNewRecordID = insert into Preferred_Partner_Sales_Totals_Form
[
Added_User=zoho.loginuser
Company_Sub_Type=lis.get(0)
Luxury_Supplier=lis.get(1)
Company_Name=lis.get(2)
Cruise_Sales_2023=if(lis.get(3).tostring() == "",0,lis.get(3).todecimal())
Cruise_Sales_2022=if(lis.get(4).tostring() == "",0,lis.get(4).todecimal())
];
//fetch ppstf recird
ppstfRecord = Preferred_Partner_Sales_Totals_Form[ID = ppstfNewRecordID];
//
//if(ppstfRecord.Company_Sub_Type = "Cruise Line" && ppstfRecord.Cruise_Sales_2023 = 0 && ppstfRecord.Cruise_Sales_2022 = 0 && ppstfRecord.Cruise_Sales_2020 = 0 && ppstfRecord.Cruise_Sales_2021 = 0)
if(ppstfRecord.Company_Sub_Type = "Cruise Line" && ppstfRecord.Cruise_Sales_2023 = null && ppstfRecord.Cruise_Sales_2022 = null && ppstfRecord.Cruise_Sales_2020 = null && ppstfRecord.Cruise_Sales_2021 = null)
{
//
delete from Preferred_Partner_Sales_Totals_Form[ID = ppstfNewRecordID];
}
}
i = i + 1;
info rowlis;
}