beforeload is not fired by loadRawData
Ext version tested:
Browser versions tested against: Description:
I am not 100% sure this is a bug, it might be by design for various reasons, but loadRawData doesn't fire the beforeload event. This may have side effects and it can be confusing.
A side effect seems to be this bug: http://www.sencha.com/forum/showthread.php?176485
It is confusing because the function fires the load event, so my expectation was that the beforeload event gets fired as well. These two events should act together as a pair, in my mind.
I guess I can always call manually the fireEvent function on store before I make the loadRawData call, but still it doesn't feel right not to pair the two events together.
Steps to reproduce the problem:
I modified the array-grid.js sample.
Code:
Ext.require([
'Ext.grid.*',
'Ext.data.*',
'Ext.util.*',
'Ext.state.*'
]);
// Define Company entity
// Null out built in convert functions for performance *because the raw data is known to be valid*
// Specifying defaultValue as undefined will also save code. *As long as there will always be values in the data, or the app tolerates undefined field values*
Ext.define('Company', {
extend: 'Ext.data.Model',
fields: [
{name: 'company'},
{name: 'price', type: 'float', convert: null, defaultValue: undefined},
{name: 'change', type: 'float', convert: null, defaultValue: undefined},
{name: 'pctChange', type: 'float', convert: null, defaultValue: undefined},
{name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia', defaultValue: undefined}
],
idProperty: 'company'
});
Ext.onReady(function() {
Ext.QuickTips.init();
// setup the state provider, all state information will be saved to a cookie
Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));
// sample static data for the store
var myData = [
['3m Co', 71.72, 0.02, 0.03, '9/1 12:00am'],
['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'],
['Altria Group Inc', 83.81, 0.28, 0.34, '9/1 12:00am'],
['American Express Company', 52.55, 0.01, 0.02, '9/1 12:00am'],
['American International Group, Inc.', 64.13, 0.31, 0.49, '9/1 12:00am'],
['AT&T Inc.', 31.61, -0.48, -1.54, '9/1 12:00am'],
['Boeing Co.', 75.43, 0.53, 0.71, '9/1 12:00am'],
['Caterpillar Inc.', 67.27, 0.92, 1.39, '9/1 12:00am'],
['Citigroup, Inc.', 49.37, 0.02, 0.04, '9/1 12:00am'],
['E.I. du Pont de Nemours and Company', 40.48, 0.51, 1.28, '9/1 12:00am'],
['Exxon Mobil Corp', 68.1, -0.43, -0.64, '9/1 12:00am'],
['General Electric Company', 34.14, -0.08, -0.23, '9/1 12:00am'],
['General Motors Corporation', 30.27, 1.09, 3.74, '9/1 12:00am'],
['Hewlett-Packard Co.', 36.53, -0.03, -0.08, '9/1 12:00am'],
['Honeywell Intl Inc', 38.77, 0.05, 0.13, '9/1 12:00am'],
['Intel Corporation', 19.88, 0.31, 1.58, '9/1 12:00am'],
['International Business Machines', 81.41, 0.44, 0.54, '9/1 12:00am'],
['Johnson & Johnson', 64.72, 0.06, 0.09, '9/1 12:00am'],
['JP Morgan & Chase & Co', 45.73, 0.07, 0.15, '9/1 12:00am'],
['McDonald\'s Corporation', 36.76, 0.86, 2.40, '9/1 12:00am'],
['Merck & Co., Inc.', 40.96, 0.41, 1.01, '9/1 12:00am'],
['Microsoft Corporation', 25.84, 0.14, 0.54, '9/1 12:00am'],
['Pfizer Inc', 27.96, 0.4, 1.45, '9/1 12:00am'],
['The Coca-Cola Company', 45.07, 0.26, 0.58, '9/1 12:00am'],
['The Home Depot, Inc.', 34.64, 0.35, 1.02, '9/1 12:00am'],
['The Procter & Gamble Company', 61.91, 0.01, 0.02, '9/1 12:00am'],
['United Technologies Corporation', 63.26, 0.55, 0.88, '9/1 12:00am'],
['Verizon Communications', 35.57, 0.39, 1.11, '9/1 12:00am'],
['Wal-Mart Stores, Inc.', 45.45, 0.73, 1.63, '9/1 12:00am']
];
/**
* Custom function used for column renderer
* @param {Object} val
*/
function change(val) {
if (val > 0) {
return '<span style="color:green;">' + val + '</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '</span>';
}
return val;
}
/**
* Custom function used for column renderer
* @param {Object} val
*/
function pctChange(val) {
if (val > 0) {
return '<span style="color:green;">' + val + '%</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '%</span>';
}
return val;
}
// create the data store
var store = Ext.create('Ext.data.ArrayStore', {
model: 'Company',
//data: myData,
listeners: {
beforeload: {
fn: function (store, operation, eOpts)
{
alert('beforeLoad');
}
},
load: {
fn: function (store, operation, eOpts)
{
alert('load');
}
}
}
});
store.loadRawData(myData);
// create the Grid
var grid = Ext.create('Ext.grid.Panel', {
store: store,
stateful: true,
collapsible: true,
multiSelect: true,
stateId: 'stateGrid',
columns: [
{
text : 'Company',
flex : 1,
sortable : false,
dataIndex: 'company'
},
{
text : 'Price',
width : 75,
sortable : true,
renderer : 'usMoney',
dataIndex: 'price'
},
{
text : 'Change',
width : 75,
sortable : true,
renderer : change,
dataIndex: 'change'
},
{
text : '% Change',
width : 75,
sortable : true,
renderer : pctChange,
dataIndex: 'pctChange'
},
{
text : 'Last Updated',
width : 85,
sortable : true,
renderer : Ext.util.Format.dateRenderer('m/d/Y'),
dataIndex: 'lastChange'
},
{
menuDisabled: true,
sortable: false,
xtype: 'actioncolumn',
width: 50,
items: [{
icon : '../shared/icons/fam/delete.gif', // Use a URL in the icon config
tooltip: 'Sell stock',
handler: function(grid, rowIndex, colIndex) {
var rec = store.getAt(rowIndex);
alert("Sell " + rec.get('company'));
}
}, {
getClass: function(v, meta, rec) { // Or return a class from a function
if (rec.get('change') < 0) {
return 'alert-col';
} else {
return 'buy-col';
}
},
getTip: function(v, meta, rec) {
if (rec.get('change') < 0) {
return 'Hold stock';
} else {
return 'Buy stock';
}
},
handler: function(grid, rowIndex, colIndex) {
var rec = store.getAt(rowIndex);
alert((rec.get('change') < 0 ? "Hold " : "Buy ") + rec.get('company'));
}
}]
}
],
height: 350,
width: 600,
title: 'Array Grid',
renderTo: 'grid-example',
viewConfig: {
stripeRows: true,
enableTextSelection: true
}
});
});
The result that was expected:
The 'beforeload' alert message pops up as well
The result that occurs instead:
Only the 'load' alert message pops up.
Operating System:
