Transform Complex Data like a Boss in Salesforce

Salesforce now has a data transformation language. This reduces the bloat and drudgery of trying to transform data in Apex and use a language designed for the job.

We will start with two models: 1) a pre-transform model and a, 2) post-transform model. Below is the pre-transformation model called JsonDataContainer because a potential usage example that model can originate from being serialized from JSON.

public with sharing class JsonDataContainer {
    public AccountData accountData;

    public Class AccountData {
        public string name;
        public List<ContactData> contacts;
        public List<OrderData> orders;
    }

    public class ContactData{
        public string firstName;
        public string lastName;

    }

    public class OrderData{
        public string targetDate;
        public Integer amount;
    }
}

The below post-transform model has Salesforce data, such as Account, Opportunities, and Contacts.

public with sharing class InsertDataContainer {
    //We put the standard objects each in their own container class
    //This allow us to depict child objects as a lists on the parent
    //and allows us to expand usage to hold additional data
    public AccountContainer accountData;
    
    public Class AccountContainer {
        public Account account;
        public List<ContactContainer> contacts;
        public List<OpportunityContainer> opps;
    }

    public Class ContactContainer {
        public Contact contact;
    }…