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anandanand Field is not writeable:Invoice__c.Id
Field is not writeable:Invoice__c.Id
public class SampleAcc {
static testMethod void testAccTrigger(){
Pricebook2 s = [select id from Pricebook2 where IsStandard = true];
// create the product
Product2 p1 = new Product2(
name='Test Product 1',
IsActive=true,
Description='My Product',
ProductCode='12345'
);
insert p1;
PricebookEntry pbe1 = new PricebookEntry(
Pricebook2Id=s.id,
Product2Id=p1.id,
UnitPrice=0.00,
IsActive=true,
UseStandardPrice=false
);
insert pbe1;
Opportunity opp1 = new Opportunity(Name='ww',StageName='Qualification',CloseDate=date.today());
insert opp1;
OpportunityLineItem oli = new OpportunityLineItem();
oli.Quantity = 1;
oli.TotalPrice = 1;
oli.PricebookEntryId = pbe1.id;
oli.OpportunityId = opp1.id;
insert oli;
Invoice__c inv =new Invoice__c();
inv.Id=opp1.id;
inv.name = 'ww';
insert inv;
Accomodation__C acc = new Accomodation__C();
acc.name='ww';
Test.startTest();
insert acc;
Test.stopTest();
}
}
shows error in this line
inv.Id=opp1.id;
Field is not writeable:Invoice__c.Id
am new to apex .please solve it
You can't write to the id field once you've instantiated an object, but you can set the id at instantiation time.
E.g.
All Answers
You can't write to the id field once you've instantiated an object, but you can set the id at instantiation time.
E.g.
Id is a special field that's exposed on every object. Once a record is created, the Id is set automatically. In your code, you are attempting to provide a value prior to inserting it. That won't work even if you specify new Invoice__c(Id='someid').
You need to either remove the line that sets the Id, or change your DML to an update.
i can see that you are trying to link the Invoice and opporunity object.
Create a lookup field on Invoice (lookup to opportunity) then pass the id of opportunity to that field as ..
Invoice i = new Invoice();
xyzopplookupfield__c = opp.id;
....
...
...
insert i;