Reader root in ExtJS with nested JSON array

Question

I\'m trying to fill the grid with part of data i\'m taking from JSON. For example (shortnen version), JSON looks like this:

 {
  \"data\": [
    {
      \"name\"         


        

Answer 1

Using 'data[0].devices.disk' worked for me. Your example JSON was a little messed up though with some trailing commas.

jsFiddle

Ext.define('User', {
    extend: 'Ext.data.Model',
    fields: ['type', 'device']
});

Ext.onReady(function() {
    var myData = '{"data":[{"name":"machine1","devices":{"disk":[{"type":"file","device":"disk"},{"type":"block","device":"cdrom"}]}},{"name":"machine2","devices":{"disk":[{"type":"file","device":"disk"},{"type":"block","device":"cdrom"}]}}]}';

    var store = Ext.create('Ext.data.Store', {
        model: 'User',
        data: Ext.decode(myData),
        proxy: {
            type:'memory',
            reader: {
                type:'json',
                root: 'data[0].devices.disk'
            }
        }
    });

    Ext.create('Ext.grid.Panel', {
        store: store,
        stateful: true,
        collapsible: true,
        multiSelect: true,
        stateId: 'stateGrid',
        columns: [
            {
                text     : 'type',
                dataIndex: 'type'
            },
            {
                text     : 'device',
                dataIndex: 'device'
            }
        ],
        height: 350,
        width: 600,
        title: 'Array Grid',
        renderTo: 'grid',
        viewConfig: {
            stripeRows: true,
            enableTextSelection: true
        }
    });
});