Child entity getting removed on ko.push

Question

User-1079190493 posted

Hi,

 

I am trying to add a new entity to an existing array in an upshot viewmodel.  The entity is JSON returned from the server and one of its properties is an array.  This part works properly with all related entities mapped

var promo = {};   
var promoType = {};
var promoModel = "Promo:#CodeFirst.Models";
upshot.map(json[0], promoModel, promo);   
upshot.addEntityProperties(promo, promoModel);

However when I push the new upshot entity into the KO array it loses its array of child entities - just an empty array remains with all other properties ok. 

issue.Promos.push(promo);

has anyone else had this problem or better yet resolved it?

 

Cheers

Joe

Answer 1

User1364817430 posted

My experience with adding data is that you have to define your model as a JS Object and make al the properties of the object observable.

If that doesn't help, I think you will have to provide some more information so I can go and search for the issue.

greetings

Kristof