Expected behavior for relations when putting entity

Hi,

I have the next structure:

@Entity
class CalEventEntity constructor(){
@Id(assignable = true)
    var id: Long = 0
    lateinit var recurrence: ToOne<CalEventRecurrenceEntity>
}

@Entity
data class CalEventRecurrenceEntity(@Id var id: Long=0,
                                    var anchorUid: String?,
                                    var originalStart: Long//,
                                    /*var endsAt : Long*/)
{
    @Backlink
    lateinit var rules: ToMany<RecurrenceRuleEntity>

}

@Entity
data class RecurrenceRuleEntity(@Id var id: Long=0,
                                var rule : String) {

    lateinit var eventRecurrence: ToOne<CalEventRecurrenceEntity>
}

Full logic Description:

1. I am getting from server the CalEventEntity with predefined id and then i am attaching it to the box: DBManager.eventDAO.box().attach(eventEntity)

2. I am creating a new instance : val calEventRecurrenceEntity = CalEventRecurrenceEntity(0,null,0) //notice the id is 0 as required

3. Then i am creating a new instance: val ruleEntity = RecurrenceRuleEntity(0, rule)

4. adding the rule: calEventRecurrenceEntity.rules.add(ruleEntity)

5. Adding the recurrence object to the calEvent: eventEntity.recurrence.target = calEventRecurrenceEntity

The problem is that the rules are not saved in the DB, i think that the problem is the the CalEventEntity has already ID. Anyway, i expect the code to update the calEventEntity and insert the CalEventRecurrenceEntity with it’s relations to the DB.

full code

 val eventEntity = CalEventEntity(calEvent.id)
 DBManager.eventDAO.box().attach(eventEntity)


val calEventRecurrenceEntity = CalEventRecurrenceEntity(0,calEvent.recurrence.anchorRefId, calEvent.recurrence.originalStart)
                            if (calEvent.recurrence.rules != null) {
                                for (rule in calEvent.recurrence.rules) {
                                    val ruleEntity = RecurrenceRuleEntity(0, rule)

                                    calEventRecurrenceEntity.rules.add(ruleEntity)
                                }

                            }
                            eventEntity.recurrence.target = calEventRecurrenceEntity

Please help.

[vadimh77]

Tnx for your help, it seems that the problem solved.

[greenrobot]

@vadimh77 please let us know if you see how this could be improved/simplified.