API Update Entity with Composition Entities

Support
#1

This used to work, I don’t know if it’s an issue from a previous update. I have a Ticket with a composition child collection of Steps.

API Process:

  1. Create new TIcket + Steps with single message to API
  2. Select Ticket (with Steps) from API
  3. Update a field on a Step Message and Send Ticket + Steps to API to update step.
  4. Error, Step doesn’t have a reference back to ticket in the API, but I’m getting “Cannot get unfetched attribute [ticket] from detached object com.company.njuns.entity.Step-d0f7c0e2-e62d-1953-4674-94f9cf165071 [detached].”

I have no way of specifying the view, and this error I found EntityImportExport: 409. This service is trying to add the reference of Step back to Ticket but it can’t do this.

#3

Hi,

What is the platform version do you use? Could you provide sample project?

I couldn’t reproduce the problem. I have tested on the 6.9.5 version.

Data model:

@NamePattern("%s|number")
@Table(name = "UBERJAR_TICKET")
@Entity(name = "uberjar$Ticket")
public class Ticket extends StandardEntity {
    private static final long serialVersionUID = -5708688890287368172L;

    @Column(name = "NUMBER_")
    protected String number;


    @Composition
    @OnDelete(DeletePolicy.CASCADE)
    @OneToMany(mappedBy = "ticket")
    protected List<Step> steps;

    //getters and setters
}

@NamePattern("%s|name")
@Table(name = "UBERJAR_STEP")
@Entity(name = "uberjar$Step")
public class Step extends StandardEntity {
    private static final long serialVersionUID = -647301058479062547L;

    @Column(name = "NAME")
    protected String name;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "TICKET_ID")
    protected Ticket ticket;

    //getters and setters
}

JSON request body:

{
    "_entityName": "uberjar$Ticket",
    "_instanceName": "ticket",
    "id": "c88791f7-bd14-faba-854a-2de06d27cec1",
    "number": "ticket",
    "version": 1,
    "steps": [
        {
            "_entityName": "uberjar$Step",
            "_instanceName": "Step",
            "id": "c7cd0f89-cf39-cc46-1d8d-4345f2fb1006",
            "name": "Step111",
            "version": 1
        }
    ]
}