Access nested array in Autoform method-update

Question

I am trying to get the value of a nested array from a method that updates an Autoform generated form.

I have a schema set up like this...

Schema.ContactDetails = new SimpleSchema({
  orderedBy: {
      type: String,
      label: "Ordered By",
      optional: true,
  },
[...]
)};

Orders.attachSchema(new SimpleSchema({
[...]
orderDetails: {
      type: Schema.OrderDetails,
      optional: true,
      blackbox: true
  },
[...]
)};

I then have an Autoform set up with this...

{{#autoForm collection="Orders" id="updateOrderForm" type="method-update" meteormethod="updateOrder" doc=this}}
[...]
{{/autoForm}}

And this is the updateOrder method...

updateOrder: function (doc,doc_id) {
    check(doc, Orders.simpleSchema());
    console.log(doc);

    //Modify doc here

    Orders.update({_id: doc_id}, doc); 
  },

The above console.log(doc); outputs the following...

{   '$set': 
    { createdBy: 'o5Wye6LLMGNXLn7HY',
        createdAt: Sat Apr 09 2016 22:15:27 GMT+1000 (AEST),
        'contactDetails.orderedBy': 'MvCun8p6vxndj3cr8',
        updatedAt: Mon Apr 11 2016 11:47:31 GMT+1000 (AEST) },
    '$unset': 
    { […]

My problem is that I need to get the 'contactDetails.orderedBy' value in the updateOrder method but I can't seem to access it. I have tried the following...

var orderedBy = doc.$set.contactDetails.orderedBy;

Exception while invoking method 'updateOrder' TypeError: Cannot read property 'orderedBy' of undefined

var orderedBy = doc.$set.'contactDetails.orderedBy';

Unexpected token error

Thanks in advance

Answer 1

Answered here...Dynamically access object property using variable

and here...Extract value from object using javascript

var orderedBy = doc.$set['contactDetails.orderedBy'];