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Newbie question: System.NullPointerException
Sorry, dumb newbie question. I have a trigger I am trying to configure that pulls a pick-list attribute (sales_region__c) off of the User object and is to place it on a the same named field of a custom object. This is what I have:
trigger SetOwnerRegion on SFL5_Projects__c (after update) { SFL5_Projects__c pr; for (Integer i = 0; i < Trigger.new.size();i++){ SFL5_Projects__c ProjectNew = Trigger.new[i]; SFL5_Projects__c ProjectOld = Trigger.old[i]; // we check to see if the subject has changed if (ProjectNew.ownerID != ProjectOld.ownerID) { user cr = [select Sales_Region__c from user where id = :ProjectNew.ownerID ]; pr.Sales_Region__c = cr.Sales_Region__c; update pr; } } }
And it is generating this error:
execution of AfterUpdate caused by: System.NullPointerException: Attempt to de-reference a null object: Trigger.SetOwnerRegion: line 11.
Any suggestions?
Thanks,
Scott
Then you are trying to do this:
Since pr is null, it has no attributes like Sales_Region__c. You have to set pr to something first. Perhaps you could change the first line in the function to:
That will set the value to a new instance of the object, then you can change its attributes (which exist now.)