Datetime field expression error

Question

I'm getting the following error in the following method:

Initial term of field expression must be a concrete SObject: Datetime

method:

private Order_Activity__c createOrderActivity(string salesOrderId, string ownerId, string locationId, string recordtypeId, string activity, string status, string separation, string screen,
                                                        string ink, string workCenterId, datetime startTime) {
    Order_Activity__c oa = new Order_Activity__c();
    oa.Sales_Order__c = salesOrderId;
    oa.Sales_Order_Owner__c = ownerId;
    oa.Location_Number__c = locationId;
    oa.RecordTypeId = recordtypeId;
    oa.Activity__c = activity;
    oa.Activity_Status__c = status;
    oa.Separation_Status__c = separation;
    oa.Screen_Status__c = screen;
    oa.Ink_Status__c = ink;
    oa.Work_Center__c = workCenterId;
    DateTime dt = startTime;
    oa.Start_Time__c = DateTime.newInstance(dt.Start_Time__c.yearGmt(), dt.Start_Time__c.monthGmt(), dt.Start_Time__c.dayGmt(), 12, 0, 0);
    return oa;
}

The error occurs on this line:

    oa.Start_Time__c = DateTime.newInstance(dt.Start_Time__c.yearGmt(), dt.Start_Time__c.monthGmt(), dt.Start_Time__c.dayGmt(), 12, 0, 0);

Thanks for any help.

Answer 1

Props to @amidstCloud, who basically gave the same comment as me.

The variable dt is a DateTime, and that's what you want to be evaluating. A DateTime has no fields or attributes; it should just be used directly. I would guess that the reference to Start_Time__c was left over from a previous version of your code.

oa.Start_Time__c = DateTime.newInstance(dt.yearGmt(), dt.monthGmt(), dt.dayGmt(), 12, 0, 0);