SF-PD2 Process Automation, Logic, and Integration — All Questions With Answers

public class OrderTriggerHandler {
    public static void handleBeforeUpdate(List<Order> newOrders, Map<Id, Order> oldMap) {
        Set<Id> accountIds = new Set<Id>();
        for(Order ord : newOrders) {
            if(ord.Status != oldMap.get(ord.Id).Status) {
                accountIds.add(ord.AccountId);
            }
        }
        Map<Id, Account> accounts = new Map<Id, Account>([
            SELECT Id, (SELECT Id, Status FROM Orders) FROM Account WHERE Id IN :accountIds
        ]);
        for(Order ord : newOrders) {
            Account acc = accounts.get(ord.AccountId);
            // Complex business logic evaluating child orders
        }
    }
}

public class OrderProcessor {
    @future(callout=true)
    public static void processOrder(Set<Id> orderIds) {
        List<Order__c> orders = [SELECT Id, Status__c FROM Order__c WHERE Id IN :orderIds];
        for(Order__c ord : orders) {
            ord.Status__c = 'Processed';
            Http h = new Http();
            HttpRequest req = new HttpRequest();
            req.setEndpoint('https://api.example.com/orders');
            req.setMethod('POST');
            HttpResponse res = h.send(req);
        }
        update orders;
    }
}

{
  "status": "error",
  "message": "Maximum stack depth reached",
  "code": 101
}

public class IntegrationService {
  public static void processData() {
    HttpRequest req = new HttpRequest();
    req.setEndpoint('https://api.external.com/data');
    req.setMethod('POST');
    Http h = new Http();
    HttpResponse res = h.send(req);
  }
}

{
  "error": "System.LimitException",
  "message": "Too many SOQL queries: 101"
}

{
  "status": 403,
  "message": "Insufficient Permissions"
}