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Prazzie System.FinalException: Record is read-only
Hi I have wrote the following trigger and the exception is throwing in the assignment of values:
CampaignProductPopulationTrigger on Campaign (after delete, after insert, after update) {
if(Trigger.isAfter){
if(Trigger.isUpdate){
Set<Id> campaignIds = new Set<Id>();
Set<Id> productIds = new Set<Id>();
Set<String> productSet = new Set<String>();
String productNames =
null;
for(Campaign campaign:Trigger.new){
campaignIds.add(campaign.id);
}
for(Campaign_Product__c campro:[Select Product__r.id from Campaign_Product__c where Campaign__r.id IN:campaignIds])
productIds.add(campro.Product__r.id);
for(Product2 proVal:[Select Name from Product2 where id IN:productIds])
productSet.add(proVal.
Name);
for(String setVal:productSet)
productNames+=setVal+
', ';
productNames=productNames.substring(0,productNames.length()-2);
for(Campaign campaign:Trigger.new)
campaign.Campaign_Products__c = productNames;//ERROR LINE
}
}
}Please tell me how to get rid of this error
Hi,
Can you check if the field security is Read only for Campaign_Products field for the profile you are running with?
I want you to make the following change as well,
As CampaignIds is a Set that can hole more than one record, you should use the below syntax for handling that.
Hi
You cannot update fields on triggered records when you are in an after trigger - move this into a before trigger, and ensure you are not running any DML statements within for-loops as the code will break with bulk updates.
Hope this helps
Ealesie