Legacy 4.1 Creating a new BaseModel that extends Model - then trying to use Traits

[GedByrneSpeedy]

Hello

We're using AdonisJS Legacy 4.1 and have in the past been using Models as :

Model
-> All Models extending Model

We're wanting to output ALL dates from our Models as ISO formatted ("YYYY-MM-DDThh:mm:ssZ") as opposed to the default "YYYY-MM-DD hh:mm:ss".

As such, rather than adding the following to every Model

static castDates(field, value) {
    return value.toISOString();
  }

I figured i'd add it once to a new Model called "BaseModel" as

"use strict";

const Model = use("Model");

class BaseModel extends Model {
  static boot() {
    super.boot();
  }

  static castDates(field, value) {
    return value.toISOString();
  }
}

module.exports = BaseModel;

My plan then is to alter all of our Models to Extend "BaseModal" rather than "Model".

The structure is now
Model
-> BaseModel (extends Model)
--> UserModel (extends BaseModal)

This works a treat when reading models, but when we apply a Trait to one of our leaf level Models (and not all use it), it's not working! I assume that I need to add something to BaseModel to pass that upwards through to Model? The examples in the documentation don't cover this hierarchy. Please can someone help?

[GedByrneSpeedy]

Closing... Realised the issue was simply that my BaseModel didn't have defaults for the createdAtColumn and updatedAtColumn - out child Models have optional traits applied that change the columns to match CREATED_DATE and UPDATED_DATE respectively.

static get createdAtColumn() {
    return null;
  }

  static get updatedAtColumn() {
    return null;
  }