knockout, nested foreach

Question

Let's I have Humans with Cats with Kittens

class Master
{  
   String masterName;

   Cat[] cats;  
}
class Cat 
{
   String catName;

   Kitten[] kittens;
}

class Kitten 
{
   String kittenName;
}  

Now I want show all my Kittens with Cats with Masters in html. I use

                    <!-- ko foreach: humans -->
                    <!-- ko foreach: cats -->
                    <!-- ko foreach: kittens -->
<p data-bind="$data.kittenName"></p>
<p data-bind="$parent.catName"></p>
<p data-bind="???????"></p>   <!-- How get master's name? -->
                    <!-- /ko -->
                    <!-- /ko -->
                    <!-- /ko -->

Answer 1

From the knockout documentation

$parents This is an array representing all of the parent view models:

$parents[0] is the view model from the parent context (i.e., it’s the same as $parent)

$parents[1] is the view model from the grandparent context

You should be able to use $parents[1] to access the Master viewmodel.

Answer 2

You can use, $root to get to the base object - which in your case will be at the level of Master.

<!-- ko foreach: humans -->
    <!-- ko foreach: cats -->
        <!-- ko foreach: kittens -->
            <p data-bind="$data.kittenName"></p>
            <p data-bind="$parent.catName"></p>
            <p data-bind="text:console.log($root, $parent, $data)"></p>   <!-- How get master's name? -->
        <!-- /ko -->
    <!-- /ko -->
<!-- /ko -->