sencha DataView autopaging help

ListMine.js

app.views.ProductsListMine = Ext.extend(Ext.Panel, {
	layout: 'card',
	scroll: 'vertical',
	fullscreen: true,
	dockedItems: [
		{
			xtype: "toolbar",
			title: "My Products",
			items: [
				{
					text: 'Settings',
					ui: 'back',
					handler: function(){
						app.views.settingsIndex.setActiveItem(app.views.settingsList, {type: 'slide', direction:'right'})
					}
				},
				{ xtype: 'spacer' }
			]
		},
		{
			xtype: "toolbar",
			ui: 'light',
			items: [				
				{
					text: 'prev page',
					ui: 'back',
					handler: function(){
						app.stores.products.previousPage();
					}
				},
				{ xtype: 'spacer' },
				{
					text: 'next page',
					ui: 'forward',
					handler: function(){
						app.stores.products.nextPage();
					}
				}
			]
		}
	],
	items: new Ext.DataView({
      store: app.stores.products,
      tpl: new Ext.XTemplate(
				'<tpl for=".">',
					'<div class="product">',
						'<div class="thumb" style="background-image:url({thumb})"></div>',
						'<div class="copy">',
							'<b>{title}</b><br />',
							'<b>Location:</b> {location.city}, {location.state} {location.zip}<br />',
							'<b>Posted:</b> {release_at}<br />',
							'<div class="x-button x-button edit"><span class="x-button-label">edit</span></div>',
							'<div class="x-button x-button-decline delete"><span class="x-button-label">delete</span></div>',
						'</div>',
					'</div>',
				'</tpl>'
			),
      itemSelector:'div.product', // needed for itemtap
			listeners: {
				itemtap: function(dataview, index, el, e){
					if (e.getTarget(".delete")) {
						confirm("Are you sure?");
					}
					else if (e.getTarget(".edit")) {
						alert("edit product");
					}
					else {
						alert("show product");
					}
				}
			}
  }),
	// items: [ products_item_mine, products_item_mine, products_item_mine, products_item_mine, products_item_mine],
	initComponent: function() {
	 app.views.ProductsListMine.superclass.initComponent.apply(this, arguments);
	}
});

Product.js

app.models.Product = Ext.regModel('app.models.Product', {
    fields: ['id', 'title', 'price', 'description', 'quantity', 'release_days', 'location', 'release_at', 'expires_at', 'images', 'thumb'],
		proxy: { 
			url: api_url+'/products',
			format: 'json',
			type: 'rest',
			reader: {
				type: 'json',
				root: 'data'
			}
		}
});

products.js

app.stores.products = new Ext.data.Store({
    model: "app.models.Product",
		listeners: {
			load: function() {
				console.log(arguments);
			},
			update: function() {
				console.log(arguments);
			},
			beforesync: function() {
				console.log(arguments);
			}
		}
});