i am trying to append the case id to attachment using trigger i have written correct logic but not getting any error and not appending case id to the attachment

Question

here is my code

public class AttachmentTriggerHandler {

public void appendingCaseNumberToAttachment(list<Attachment> attaches){

list<Attachment> listOfAttachments = new list<Attachment>();

set<Id> parentIds = new set<Id>();

for(Attachment newAttachments:attaches){

system.debug('attaches====>'+newAttachments);

if(((String)newAttachments.ParentID).startswith('500')){

parentIds.add(newAttachments.ParentID);

System.debug('parentIds===='+parentIds);

}

Map<id,Case> casemap=new map<Id,Case>([select id,CaseNumber,(SELECT id,Name from Attachments) from case where id IN:parentIds]);

for(Case cc:casemap.values()){

for(Attachment attach:cc.Attachments){

System.debug('Attachments========'+attach);

attach.name=cc.CaseNumber+'-'+attach.Name;

listOfAttachments.add(attach);

//Attachments.Name = Attachments.Name+'-'+Attachments.(case.id).ParentId;

}

Please suggest me where i am doing mistake

Maharajan Chinnadurai · Answer

Please post your trigger.

Apex