illegal assignment from object to id Error?

I have written following code to insert records on junction object.

public static List<PDCN__c> addSelectedPDCNs(List<String> selectedRecords, String groupId)
system.debug('Entering addSelectedPDCNs');
system.debug('Selected Records are-->'+selectedRecords);
system.debug('Group Id is-->'+groupId);

List < PDCN__c > lstAddId = [SELECT Id from PDCN__c where Name IN: selectedRecords];
system.debug('Record Ids Are-->'+lstAddId);

List<PDCNGrpJunc__c> lstJunc = new List<PDCNGrpJunc__c>();

for( PDCN__c pdcn : lstAddId )
system.debug('Inside For Loop-->'+pdcn);
PDCNGrpJunc__c juncRec = new PDCNGrpJunc__c();
juncRec.PDCN__c = pdcn;
juncRec.PDCN_Group__c = groupId;
lstJunc.add(juncRec);

//insert lstJunc;
try
system.debug('Trying Insert');
system.debug('');
insert lstJunc;

catch(Exception e)

System.debug('Exception Occured='+e.getMessage());


return lstAddId;



I am getting error in juncRec.PDCN__c = pdcn; line as :-

Illegal assignment from PDCN__c to Id

Why do I get this error? How do I fix it?

1 Answer
1

So the field juncRec.PDCN__c is a Lookup field, (Consider it as a text/ID field)

juncRec.PDCN__c

where as in your loop pdcn is an object/record.(Not a text field)

pdcn

In your code

juncRec.PDCN__c = pdcn;


What you are trying to do is assign an Object to a Text/Id field and hence you get an error. You can solve this by using id juncRec.PDCN__c = pdcn.Id;

juncRec.PDCN__c = pdcn.Id;

for( PDCN__c pdcn : lstAddId )
system.debug('Inside For Loop-->'+pdcn);
PDCNGrpJunc__c juncRec = new PDCNGrpJunc__c();
***juncRec.PDCN__c = pdcn.Id;***
juncRec.PDCN_Group__c = groupId;
lstJunc.add(juncRec);



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