Change root for JSON store

[navvn]

Basicly what i want to achiev
I have json that look like:

info {
array
}
comments {
array
}
success: true

First i want to use DataView that use data stored in info

var tempTicket = new Ext.data.JsonStore({
            url: '/tickets/card/id/'+sel.get('ticket_id'),
            root: 'info',
            fields: [
                'ticket_id', 
                'subject', 
                'created_date', 
                'assignedto_usr_name',
                'status',
                'content'
            ]
        });
tempTicket.load(); 

That how JsonStore looks like.

But i would like to use data stored in comments and display them as a grid.
If i add second store with diferent root i have 2 requests to server.
Is there anyway to define rot folder after data is loaded? Something like:

var tempTicket = new Ext.data.JsonStore({
            url: '/tickets/card/id/'+sel.get('ticket_id')
        });
tempTicket.load(); 

new Ext.DataView({
                    store: tempTicket({root: info}),
                    tpl: ticket_preview_tpl,               
                    emptyText: 'No records'
                }) 

[fay]

Have you looked at this post?