How can I disable line item field without disabling entire column using Client Script (SuiteScript 2.0)?

Question

I'm trying to disable sublist field, in order to fillment of another sublist field. However, it seems to me it's not working. I used lineInit(cuz it looks like what i need at the moment).

function lineInit(context) {

        var cr = context.currentRecord;
        var selectedLine = cr.getCurrentSublistIndex({sublistId: "item"});
        var iskontoOran = cr.getCurrentSublistValue({sublistId: "item", fieldId : "custcol_delta_iskonto_oran"});
        if (iskontoOran != "0.00"){
            cr.getCurrentSublistValue({sublistId : "item", fieldId: "custcol_delta_iskonto_tutar", line: 0
            }).isDisabled = true;
        }
        else {
            cr.getCurrentSublistValue({sublistId : "item", fieldId: "custcol_delta_iskonto_tutar", line: 0
            }).isDisabled = false;
        }

Answer 1

     function fieldChanged(context) {
        var myRec = context.currentRecord;
        var itemCount = myRec.getLineCount("item");
        var anlıkLine = myRec.getCurrentSublistIndex({ sublistId: "item" });
        var sublistName = myRec.getSublist({sublistId: "item"});
        var oranColumn = sublistName.getColumn({ fieldId: "custcol_delta_iskonto_oran" });
        var tutarColumn = sublistName.getColumn({ fieldId: "custcol_delta_iskonto_tutar" });
        var currOran = myRec.getCurrentSublistValue({ sublistId: "item", fieldId: "custcol_delta_iskonto_oran" });
        var currTutar = myRec.getCurrentSublistValue({ sublistId: "item", fieldId: "custcol_delta_iskonto_tutar" });
        if (currTutar) {
            myRec.setCurrentSublistValue({
                sublistId: "item",
                fieldId: "custcol_delta_iskonto_oran",
                value: "",
                ignoreFieldChange: true
            });
            oranColumn.isDisabled = true;
        } else {
            oranColumn.isDisabled = false;
        }
        if (currOran) {
            myRec.setCurrentSublistValue({
                sublistId: "item",
                fieldId: "custcol_delta_iskonto_tutar",
                value: "",
                ignoreFieldChange: true
            });
            tutarColumn.isDisabled = true;
        } else {
            tutarColumn.isDisabled = false;
        }
}
function lineInit(context) {
        var myRec = context.currentRecord;
        var itemCount = myRec.getLineCount("item");
        var anlıkLine = myRec.getCurrentSublistIndex({ sublistId: "item" });
        var quantity = myRec.getCurrentSublistValue({ sublistId: "item", fieldId: "quantity" });
        log.debug({ title: "AnlıkLine, Quantity ve itemCount-LineInit", details: "anlıkLine = " + anlıkLine + ", quantity = " + quantity + ", itemcount = " + itemCount });
        for (var j = 0; j < itemCount; j++) {
            if (quantity){
                var oranField = myRec.getSublistField({ sublistId: "item", fieldId: "custcol_delta_iskonto_oran", line: j });
                var tutarField = myRec.getSublistField({ sublistId: "item", fieldId: "custcol_delta_iskonto_tutar", line: j });
                var currOran = myRec.getCurrentSublistValue({ sublistId: "item", fieldId: "custcol_delta_iskonto_oran" });
                var currTutar = myRec.getCurrentSublistValue({ sublistId: "item", fieldId: "custcol_delta_iskonto_tutar" });
                if (currTutar) {
                    myRec.setCurrentSublistValue({
                        sublistId: "item",
                        fieldId: "custcol_delta_iskonto_oran",
                        value: "",
                        ignoreFieldChange: true
                    });
                    oranField.isDisabled = true;
                } else {
                    oranField.isDisabled = false;
                }
                if (currOran) {
                    myRec.setCurrentSublistValue({
                        sublistId: "item",
                        fieldId: "custcol_delta_iskonto_tutar",
                        value: "",
                        ignoreFieldChange: true
                    });
                    tutarField.isDisabled = true;
                    log.debug({ title: "Tutar Alanı 
                } else {
                    tutarField.isDisabled = false;
                }
            }
        }
    }

So this is my aproach and it is working fine at the moment. Can it be more nice? Yeah, probably but it does do the job for now :)