Sencha Touch - access 1 to 1 model relationship - json

Question

I'm trying to access the following JSON from my model store. I have no problem accessing the root (Name and Address) but i can't access anything in Financials (NetWorth or Income). I've verified the JSON below is being returned from the server.
I know this has to be super easy but every example I've seen is showing how to access a 1 to many relationship. My model is a 1 to 1. Person->Financials. Right now I don't have any associations setup as I don't know how to setup a 1 to 1 relationship. I've tried associations, I've tried belongsTo, I've tried Financials.NetWorth from inside my itemTPL. Nothing.
Can someone please show me the light?
JSON returned from server
[{
"PersonName": "John Smith",
"Address": "123 main street",
"Financials":
[{
"NetWorth": "$500,000",
"Income":"$67,000"
}]
}]
I registered my Models.
Ext.regModel('Person', {
fields: [
{name: 'Name', type:'string'},
{name: 'Address', type: 'string'},
],
});
Ext.regModel('Financials',{
fields: [
{name: 'NetWorth', type:'string'},
{name: 'Income', type: 'string'},
],
});
And registered the store
var commStore = new Ext.data.Store({
model: 'Person',
proxy: {
type: 'ajax',
url : 'Business/GetData',
reader: {
type: 'json',
}
},
autoLoad:false,
});
and displaying back in a list
var commList = new Ext.List({
fullscreen: false,
itemTpl : '<div>{PersonName}</div><div>{Business.NetWorth}</div>',
store: commStore,
height:500,
width:"100%",
});
Any help would be much appreciated.

Answer 1

Beginner myself too, but it seems follwing could help (not tested with your code)
Have only on model:
Ext.regModel('Person', {
fields: [
{name: 'Name', type:'string'},
{name: 'Address', type: 'string'},
{name: 'NetWorth', type:'string', mapping 'Financials.NetWorth'},
{name: 'Income', type: 'string', mapping 'Financials.Income'},
],
});
and in template code refer with the names
itemTpl : '<div>{PersonName}</div><div>{Business.NetWorth}</div>',
becomes
itemTpl : '<div>{PersonName}</div><div>{NetWorth}</div>',

Answer 2

You say that your relationship is 1-to-1, but your JSON data returns an array(with 1 item, but nonetheless an array, because you use "[]" brackets) for Financials.
This means that Person should become something like this:
Ext.regModel('Person', {
fields: [
{name: 'Name', type:'string'},
{name: 'Address', type: 'string'},
],
hasMany: [
{name: 'person', model: 'Person'}
]
});