ケースの複製のまとめ

Apex: Clone a record, then make the new record the Parent of the old cloned Record

public static void cloneTransferCases(Map<Id,Case> oldMap,List<Case> newList){
    System.debug('MM++++ oldMap: ' + oldMap.keySet());
    System.debug('MM++++ oldMap Values: ' + oldMap.values());
    System.debug('MM++++ newList: ' + newList);
    Set<id> processedAbandonCloneRecords = new Set<Id>();
    Map<Id,Case> mapCaseToInsert = new Map<Id,Case>();

    for(Case cs : newList){
        // check to see if this record has been processed already in this transaction
        if(!processedAbandonCloneRecords.contains(cs.Id)){
            if(cs.Status == 'Abandoned'){
                if(cs.Abandoned_Reason__c == 'Transferred' && oldMap.get(cs.Id).Abandoned_Reason__c != 'Transferred'){
                    if(cs.Transfer_To__c != null && cs.ParentId == null){
                        // Create a temporary case using oldMap
                        // to get field values prior to Abandonment
                        Case tempCase = oldMap.get(cs.Id).clone();
                        // set owner of new case to match the Transfer To user
                        tempCase.OwnerId = cs.Transfer_To__c;
                        tempCase.ParentId = null;
                        mapCaseToInsert.put(cs.id,tempCase);

                        // mark this record as processed in this transaction
                        processedAbandonCloneRecords.add(cs.Id);

                        // if we are running tests, insert and update will
                        // occur in same transaction so we should actually
                        // not stop cascade
                        if(Test.isRunningTest()){
                            processedAbandonCloneRecords.remove(cs.Id);
                        }
                    }
                }
            }
        }
    }

    if(!mapCaseToInsert.isEmpty()){
        insert mapCaseToInsert.values();
    }

    for(Case cs : newList){
        if(mapCaseToInsert.containsKey(cs.id)) {
            cs.ParentId = mapCaseToInsert.get(cs.id).id;
        }
    }
}